CN102750123B - Based on method of seam-line elimination and the device of ultrahigh resolution numerical monitor combination - Google Patents
Based on method of seam-line elimination and the device of ultrahigh resolution numerical monitor combination Download PDFInfo
- Publication number
- CN102750123B CN102750123B CN201210223658.XA CN201210223658A CN102750123B CN 102750123 B CN102750123 B CN 102750123B CN 201210223658 A CN201210223658 A CN 201210223658A CN 102750123 B CN102750123 B CN 102750123B
- Authority
- CN
- China
- Prior art keywords
- splicing seams
- point
- coordinate
- projection curve
- point coordinate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Image Processing (AREA)
- Image Analysis (AREA)
Abstract
The embodiment of the invention discloses a kind of method of seam-line elimination based on ultrahigh resolution digital jointing wall and device, wherein method comprises: carry out coarse positioning to splicing seams; The each point orientated as in splicing seams is compared mutually according to the first control parameters, and according to the extreme value determination splicing seams edge coordinate that comparison obtains; Compare with the second control parameters the fiducial value obtained according to described splicing seams edge coordinate, the point meeting exclusion condition is got rid of; The point meeting exclusion condition according to described splicing seams edge coordinate and eliminating obtains splicing seams refinement positioning result and merges frame by frame.By to the splicing seams carrying out coarse positioning, by each point in splicing seams according to the first control parameters comparison result determination splicing seams edge coordinate, achieve the reduction of splicing seams size, compare with the second control parameters the fiducial value obtained according to described splicing seams edge coordinate, namely the point getting rid of non-splicing seams eliminates the interference that object blocks etc., thus reaches the technique effect that splicing seams Position location accuracy improves.
Description
Technical field
The present invention relates to mobile communication technology field, more particularly, relate to a kind of method of seam-line elimination based on ultrahigh resolution digital jointing wall and device.
Background technology
Ultrahigh resolution numerical monitor combination VW has ultrahigh resolution, can support and process multisignal source signal, and can realize picture seamless display, is extensively promoted in common presentation, collection control field.Described display splicing wall is spliced by polylith LCD screen, splicing inevitably produces splicing seams, the existence of splicing seams can make screen picture display effect produce the slack harmful effect of vision, and how reducing even to eliminate combination splicing seams is the importance improving VW display effect.
Existing reduction combination splicing seams is the method for the impact that display effect is brought is eliminated the harmful effect that splicing seams causes in procedure for displaying by improvement video image processing technology, comprise the location of splicing seams and the fusion of splicing seams, wherein the location of splicing seams is determined by the method for manual demarcation or additional testing frame; The fusion of splicing seams utilizes the pixel on splicing seams both sides to carry out linear interpolation, and the result of interpolation is replaced described splicing seams.
But the aggravation in actual applications in order to prevent the shake of camera lens from causing splicing seams to affect, splicing seams size behind described splicing seams location is often wide than actual conditions, or when having similar splicing seams image or blocking object near splicing seams, to there is error in the location of splicing seams, thus existing method of seam-line elimination exists the technical matters of splicing seams Position location accuracy difference.
Summary of the invention
In view of this, the invention provides a kind of method of seam-line elimination based on ultrahigh resolution digital jointing wall and device, to realize the technique effect that splicing seams Position location accuracy improves.
Based on a method of seam-line elimination for ultrahigh resolution digital jointing wall, comprising:
Coarse positioning is carried out to splicing seams;
The each point orientated as in splicing seams is compared mutually according to the first control parameters, and according to the extreme value determination splicing seams edge coordinate that comparison obtains;
Compare with the second control parameters the fiducial value obtained according to described splicing seams edge coordinate, the point meeting exclusion condition is got rid of;
The point meeting exclusion condition according to described splicing seams edge coordinate and eliminating obtains splicing seams refinement positioning result and merges frame by frame.
In order to improve such scheme, also can comprise:
Splicing seams gradient map is extracted from described splicing seams;
Described splicing seams gradient map is projected to horizontal direction and vertical direction respectively by according to the pre-splicing seams unit section divided, obtains the horizontal projection curve that associates with pixel characteristic and vertical projection curve;
Carry out secondary coarse positioning splicing seams with the extreme point on horizontal projection curve and vertical projection curve respectively, wherein the upper edge extreme point coordinate of horizontal projection curve is less than lower edge extreme point coordinate;
The left margin extreme point coordinate of vertical projection curve is less than lower edge extreme point coordinate.
Preferably:
Splicing seams is positioned and is specially:
Location based on additional testing frame method is carried out to splicing seams.
The each point orientated as in splicing seams is compared mutually according to the first control parameters and is specially:
In horizontal splicing seams direction, carry out the comparison according to brightness value by row by orientating each point in splicing seams as, the maximum brightness value determination splicing seams edge ordinate obtained according to comparison;
In vertical splicing seams direction, will the comparison of respectively pressing and arranging and carrying out according to brightness value be orientated in splicing seams as, the maximum brightness value determination splicing seams edge horizontal ordinate obtained according to comparison.
Compare with the second control parameters the fiducial value obtained according to described splicing seams edge coordinate, the point meeting exclusion condition got rid of, is specially:
Get rid of when the difference of described horizontal projection Curve Maximization point coordinate to compare the point that the fiducial value obtained is greater than presetted pixel value with presetted pixel value;
Get rid of when the difference of described vertical projection Curve Maximization point coordinate to compare the point that the fiducial value obtained is greater than presetted pixel value with presetted pixel value.
Compare with the second control parameters the fiducial value obtained according to described splicing seams edge coordinate, the point meeting exclusion condition got rid of, is specially:
Horizontal projection curve detecting in the pre-splicing seams unit section divided, being greater than lower edge extreme point coordinate as possessed upper edge extreme point coordinate, abandon processing each point in this splicing seams unit section divided in advance;
Vertical projection curve detects in the pre-splicing seams unit section divided, being greater than the right along extreme point coordinate as possessed left margin extreme point coordinate, abandoning processing each point in this splicing seams unit section divided in advance.
In order to improve such scheme, also can comprise:
Judge the colour-difference of splicing seams both sides, if the colour-difference of certain some both sides is greater than given threshold value in splicing seams, then abandon processing this point in this splicing seams unit section divided in advance.
Based on a Seamlines removing device for ultrahigh resolution digital jointing wall, comprising:
Coarse positioning unit, for carrying out coarse positioning to splicing seams;
Splicing seams edge coordinate and splicing seams width determining unit, for each point orientated as in splicing seams is compared mutually according to the first control parameters, and the extreme value determination splicing seams edge coordinate obtained according to comparison and splicing seams width;
Point rejected unit, the point meeting exclusion condition for described splicing seams width to be compared the fiducial value obtained with the second control parameters is got rid of;
Integrated unit, obtains splicing seams refinement positioning result for the point meeting exclusion condition according to described splicing seams edge coordinate and eliminating and merges frame by frame.
In order to improve such scheme, also can comprise:
Secondary coarse positioning unit, specific implementation:
Splicing seams gradient map is extracted from described splicing seams;
Described splicing seams gradient map is projected to horizontal direction and vertical direction respectively by according to the pre-splicing seams unit section divided, obtains the horizontal projection curve that associates with pixel characteristic and vertical projection curve;
Carry out secondary coarse positioning splicing seams with the extreme point on horizontal projection curve and vertical projection curve respectively, wherein the upper edge extreme point coordinate of horizontal projection curve is less than lower edge extreme point coordinate;
The left margin extreme point coordinate of vertical projection curve is less than lower edge extreme point coordinate.
Preferably, rejected unit specific implementation is put:
Get rid of when the difference of described horizontal projection Curve Maximization point coordinate to compare the point that the fiducial value obtained is greater than presetted pixel value with presetted pixel value;
Get rid of when the difference of described vertical projection Curve Maximization point coordinate to compare the point that the fiducial value obtained is greater than presetted pixel value with presetted pixel value;
And:
Horizontal projection curve detecting in the pre-splicing seams unit section divided, being greater than lower edge extreme point coordinate as possessed upper edge extreme point coordinate, abandon processing each point in this splicing seams unit section divided in advance;
Vertical projection curve detects in the pre-splicing seams unit section divided, being greater than the right along extreme point coordinate as possessed left margin extreme point coordinate, abandoning processing each point in this splicing seams unit section divided in advance.
As can be seen from above-mentioned technical scheme, in the embodiment of the present invention, by to the splicing seams carrying out coarse positioning, by each point in splicing seams according to the first control parameters comparison result determination splicing seams edge coordinate, achieve the reduction of splicing seams size, compare with the second control parameters the fiducial value obtained according to described splicing seams edge coordinate, get rid of the point of non-splicing seams, namely eliminate the interference that object blocks etc., reach the technique effect that splicing seams Position location accuracy improves.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of method of seam-line elimination process flow diagram based on ultrahigh resolution digital jointing wall disclosed in the embodiment of the present invention;
Fig. 2 a is a kind of method of seam-line elimination process flow diagram based on ultrahigh resolution digital jointing wall disclosed in the embodiment of the present invention;
Fig. 2 b disclosed in the embodiment of the present invention a kind of splicing seams based on ultrahigh resolution digital jointing wall based on the pixel projection figure of gradient map;
Fig. 3 is a kind of method of seam-line elimination process flow diagram based on ultrahigh resolution digital jointing wall disclosed in the embodiment of the present invention;
Fig. 4 is a kind of Seamlines removing apparatus structure schematic diagram based on ultrahigh resolution digital jointing wall disclosed in the embodiment of the present invention;
Fig. 5 is a kind of Seamlines removing apparatus structure schematic diagram based on ultrahigh resolution digital jointing wall disclosed in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Based on method of seam-line elimination and the device of ultrahigh resolution digital jointing wall, to realize the technique effect that splicing seams Position location accuracy improves.
Fig. 1 shows a kind of method of seam-line elimination based on ultrahigh resolution digital jointing wall, comprising:
Step 11: coarse positioning is carried out to splicing seams;
Carry out, based on the location of additional testing frame method, comprising to splicing seams:
The extraction of splicing seams; Convert video image to gray level image; Obtain the gradient map of horizontal direction and vertical direction respectively; By gradient map binary conversion treatment; After described gradient binary map being superposed frame by frame, carry out Hough transform, utilize totalizer record coversion result; Straight-line equation corresponding to splicing seams is obtained according to totalizer result; Totalizer result is greater than point corresponding when converting threshold value to retain; Filling cavity, widens splicing seams scope; Remove burr;
If directly merged with splicing seams figure obtained in the previous step, syncretizing effect is undesirable often, the refinement must carried out splicing seams for each two field picture and screening.
Step 12: each point orientated as in splicing seams is compared mutually according to the first control parameters, and according to the extreme value determination splicing seams edge coordinate that comparison obtains;
Described first control parameters can be the parameter that splicing seams position and screen position are distinguished in brightness etc.
Step 13: compare with the second control parameters the fiducial value obtained according to described splicing seams edge coordinate, gets rid of the point meeting exclusion condition;
The setting object of the second control parameters is that the indivedual points by interference splicing seams merges are rejected.
Step 14: the point meeting exclusion condition according to described splicing seams edge coordinate and eliminating obtains splicing seams refinement positioning result and merges frame by frame.
Above-described embodiment refinement size of splicing seams, and point is got rid of can to carry out that object blocks etc., reaches the technique effect that splicing seams Position location accuracy improves.
Fig. 2 a shows another method of seam-line elimination based on ultrahigh resolution digital jointing wall, comprising:
Step 21: coarse positioning is carried out to splicing seams;
Step 22: extract splicing seams gradient map from described splicing seams;
Described splicing seams gradient map comprises horizontal direction and vertical direction two kinds.
Step 23: described splicing seams gradient map is projected to horizontal direction and vertical direction respectively by according to the pre-splicing seams unit section divided, obtains the horizontal projection curve that associates with pixel characteristic and vertical projection curve;
In order to the convenience of parameter comparison, and speed process rate, splicing seams can be divided according to some pixels (as 10 pixels), described splicing seams is made up of multiple lines and multiple rows unit section.
Step 24: carry out secondary coarse positioning splicing seams with the extreme point on horizontal projection curve and vertical projection curve respectively, wherein the upper edge extreme point coordinate of horizontal projection curve is less than lower edge extreme point coordinate, as shown in Figure 2 b; The left margin extreme point coordinate of vertical projection curve is less than lower edge extreme point coordinate.
The pixel value in horizontal splicing seams region is lower than peripheral region pixel, and this kind of phenomenon shows comparatively outstanding in gradient map, thus utilizes gradient map to judge.From Fig. 2 b(horizontal projection curve) can see figure, there is the pixel minimal value that negative, and the pixel maximum value that one positive, upper edge a and the lower edge b of what this pixel extreme value was corresponding is splicing seams, from coordinate angle, a<b, as long as find such extreme value, also just have found the edge of splicing seams.
Step 25: each point orientated as in splicing seams is compared mutually according to the first control parameters, and according to the extreme value determination splicing seams edge coordinate that comparison obtains;
After the secondary coarse positioning completed in above-mentioned steps, also may there is deviation in the splicing seams found, often still wide than the splicing seams of reality, needs to verify further.
In horizontal splicing seams direction, carry out the comparison according to brightness value by row by orientating each point in splicing seams as, the maximum brightness value determination splicing seams edge ordinate obtained according to comparison;
If Img is (x, a) be the up contour point of horizontal splicing seams, so must meet Img (xa) <Img (x, a-1), the brightness value that namely splicing seams xth row a arranges is less than the brightness value of its lastrow xth-1 row respective pixel, brightness according to splicing seams is verified each point in splicing seams unit section lower than screen intensity, if do not meet this condition, then find the splicing seams point satisfied condition downwards, suppose Img (x, a+da) <Img (x, a+da-1) satisfy condition, then corresponding coboundary ordinate is a+da, lower limb is adopted and uses the same method, but investigation becomes from the bottom to top, obtain each point in b-db traversal splicing seams section, the maximal value damax of record da, and the minimum value dbmin of db, then the ordinate at the corresponding splicing seams edge determined is a+damax, b-dbmin.
In vertical splicing seams direction, will the comparison of respectively pressing and arranging and carrying out according to brightness value be orientated in splicing seams as, the maximum brightness value determination splicing seams edge horizontal ordinate obtained according to comparison.
Equally, for vertical splicing seams, if Img (a, y) point is the left hand edge point of splicing seams, so must meet Img (a, y) <Img (a-1, y), wherein a, a-1 represent image horizontal ordinate, and y represents image ordinate.Each point in splicing seams section is verified, if do not meet this condition, then finds the splicing seams point satisfied condition to the right, suppose Img (a+da, y) <Img (a+da-1, y) satisfies condition, then corresponding left hand edge horizontal ordinate is a+da; Right hand edge is adopted and uses the same method, but investigation becomes from right to left, obtain b-db(wherein da, db is side-play amount) travel through each point in splicing seams section, the maximal value damax of record da, and the minimum value dbmin of db, then the horizontal ordinate at the corresponding splicing seams edge determined is a+damax, b-dbmin.
Step 26: compare with the second control parameters the fiducial value obtained according to described splicing seams edge coordinate, gets rid of the point meeting exclusion condition;
Step 27: the point meeting exclusion condition according to described splicing seams edge coordinate and eliminating obtains splicing seams refinement positioning result and merges frame by frame.
Fig. 3 shows another method of seam-line elimination based on ultrahigh resolution digital jointing wall, comprising:
Step 31: coarse positioning is carried out to splicing seams;
Step 32: extract splicing seams gradient map from described splicing seams;
Step 33: described splicing seams gradient map is projected to horizontal direction and vertical direction respectively by according to the pre-splicing seams unit section divided, obtains the horizontal projection curve that associates with pixel characteristic and vertical projection curve;
Step 34: carry out secondary coarse positioning splicing seams with the extreme point on horizontal projection curve and vertical projection curve respectively;
Wherein the upper edge extreme point coordinate of horizontal projection curve is less than lower edge extreme point coordinate;
The left margin extreme point coordinate of vertical projection curve is less than lower edge extreme point coordinate.
Step 35: each point orientated as in splicing seams is compared mutually according to the first control parameters, and according to the extreme value determination splicing seams edge coordinate that comparison obtains;
In horizontal splicing seams direction, carry out the comparison according to brightness value by row by orientating each point in splicing seams as, the maximum brightness value determination splicing seams edge ordinate obtained according to comparison;
In vertical splicing seams direction, will the comparison of respectively pressing and arranging and carrying out according to brightness value be orientated in splicing seams as, the maximum brightness value determination splicing seams edge horizontal ordinate obtained according to comparison.
Step 36: compare with the second control parameters the fiducial value obtained according to described splicing seams edge coordinate, gets rid of the point meeting exclusion condition;
Get rid of when the difference of described horizontal projection Curve Maximization point coordinate to compare the point that the fiducial value obtained is greater than presetted pixel value with presetted pixel value;
Get rid of when the difference of described vertical projection Curve Maximization point coordinate to compare the point that the fiducial value obtained is greater than presetted pixel value with presetted pixel value.
In actual application, feature and the splicing seams of the dark objects such as leaf, crocodile skin, eyes, eyebrow are quite similar, thus unnecessary interference is produced to the location of splicing seams, and due to the width of splicing seams be limited, usually Wmax(present case Wmax=6 can not be greater than) individual pixel, and the width of the dark objects such as leaf, crocodile skin, eyes, eyebrow is usually greater than 6 pixels, thus with b+dbmax-(a+damax) whether be greater than Wmax, if be greater than, cast out, otherwise retain.
And:
Horizontal projection curve detecting in the pre-splicing seams unit section divided, being greater than lower edge extreme point coordinate as possessed upper edge extreme point coordinate, abandon processing each point in this splicing seams unit section divided in advance;
Vertical projection curve detects in the pre-splicing seams unit section divided, being greater than the right along extreme point coordinate as possessed left margin extreme point coordinate, abandoning processing each point in this splicing seams unit section divided in advance.
Under normal circumstances, block if existed, then a<b, or a+damax<b+dbmax often can not meet.If there is the point of a>b, then this splicing seams unit section is not carried out processing directly casting out.If a+damax>b+dbmax, but a+da<b+db is met to certain point, then only process the point satisfied condition.
Step 37: the colour-difference judging splicing seams both sides, if the colour-difference of certain some both sides is greater than given threshold value in splicing seams, then abandons processing this point in this splicing seams unit section divided in advance.
Because the color on splicing seams both sides often differs greatly, if the colour-difference on splicing seams both sides is greater than given threshold value t(as t=120), then exist and partly block, thus abandon process; Otherwise retain.
Step 38: the point meeting exclusion condition according to described splicing seams edge coordinate and eliminating obtains splicing seams refinement positioning result and merges frame by frame.
Fig. 4 shows a kind of Seamlines removing device based on ultrahigh resolution digital jointing wall, comprising:
Coarse positioning unit 41, for carrying out coarse positioning to splicing seams;
Splicing seams edge coordinate and splicing seams width determining unit 42, for each point orientated as in splicing seams is compared mutually according to the first control parameters, and the extreme value determination splicing seams edge coordinate obtained according to comparison and splicing seams width;
Point rejected unit 43, the point meeting exclusion condition for described splicing seams width to be compared the fiducial value obtained with the second control parameters is got rid of;
Point rejected unit, specific implementation:
Get rid of when the difference of described horizontal projection Curve Maximization point coordinate to compare the point that the fiducial value obtained is greater than presetted pixel value with presetted pixel value;
Get rid of when the difference of described vertical projection Curve Maximization point coordinate to compare the point that the fiducial value obtained is greater than presetted pixel value with presetted pixel value.
And:
Horizontal projection curve detecting in the pre-splicing seams unit section divided, being greater than lower edge extreme point coordinate as possessed upper edge extreme point coordinate, abandon processing each point in this splicing seams unit section divided in advance;
Vertical projection curve detects in the pre-splicing seams unit section divided, being greater than the right along extreme point coordinate as possessed left margin extreme point coordinate, abandoning processing each point in this splicing seams unit section divided in advance.
Integrated unit 44, obtains splicing seams refinement positioning result for the point meeting exclusion condition according to described splicing seams edge coordinate and eliminating and merges frame by frame.
Another Seamlines removing device based on ultrahigh resolution digital jointing wall is shown in Fig. 5, on the basis of Fig. 4, has also comprised: secondary coarse positioning unit 51, specific implementation:
Splicing seams gradient map is extracted from described splicing seams;
Described splicing seams gradient map is projected to horizontal direction and vertical direction respectively by according to the pre-splicing seams unit section divided, obtains the horizontal projection curve that associates with pixel characteristic and vertical projection curve;
Carry out secondary coarse positioning splicing seams with the extreme point on horizontal projection curve and vertical projection curve respectively, wherein the upper edge extreme point coordinate of horizontal projection curve is less than lower edge extreme point coordinate;
The left margin extreme point coordinate of vertical projection curve is less than lower edge extreme point coordinate.
For device disclosed in embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
In sum:
In the embodiment of the present invention, by to the splicing seams carrying out coarse positioning, by each point in splicing seams according to the first control parameters comparison result determination splicing seams edge coordinate, achieve the reduction of splicing seams size, compare with the second control parameters the fiducial value obtained according to described splicing seams edge coordinate, get rid of the point of non-splicing seams, namely eliminate the interference that object blocks etc., thus reach the technique effect that splicing seams Position location accuracy improves.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the embodiment of the present invention, can realize in other embodiments.Therefore, the embodiment of the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. based on a method of seam-line elimination for ultrahigh resolution digital jointing wall, it is characterized in that, comprising:
Coarse positioning is carried out to splicing seams;
The each point orientated as in splicing seams is compared mutually according to the first control parameters, and according to the extreme value determination splicing seams edge coordinate that comparison obtains;
Compare with the second control parameters the fiducial value obtained according to described splicing seams edge coordinate, the point meeting exclusion condition is got rid of;
The point meeting exclusion condition according to described splicing seams edge coordinate and eliminating obtains splicing seams refinement positioning result and merges frame by frame;
Wherein:
The each point orientated as in splicing seams is compared mutually according to the first control parameters and is specially:
In horizontal splicing seams direction, carry out the comparison according to brightness value by row by orientating each point in splicing seams as, the maximum brightness value determination splicing seams edge ordinate obtained according to comparison;
In vertical splicing seams direction, will the comparison of respectively pressing and arranging and carrying out according to brightness value be orientated in splicing seams as, the maximum brightness value determination splicing seams edge horizontal ordinate obtained according to comparison;
Compare with the second control parameters the fiducial value obtained according to described splicing seams edge coordinate, the point meeting exclusion condition got rid of, is specially:
Get rid of when the difference of horizontal projection Curve Maximization point coordinate to compare the point that the fiducial value obtained is greater than presetted pixel value with presetted pixel value;
Get rid of when the difference of vertical projection Curve Maximization point coordinate to compare the point that the fiducial value obtained is greater than presetted pixel value with presetted pixel value;
The difference of described horizontal projection Curve Maximization point coordinate is the upper edge extreme point coordinate of horizontal projection curve and the difference of lower edge extreme point coordinate, and the difference of described vertical projection Curve Maximization point coordinate is the left margin extreme point coordinate of vertical projection curve and the difference of lower edge extreme point coordinate;
Compare with the second control parameters the fiducial value obtained according to described splicing seams edge coordinate, the point meeting exclusion condition got rid of, is specially:
Horizontal projection curve detecting in the pre-splicing seams unit section divided, being greater than lower edge extreme point coordinate as possessed upper edge extreme point coordinate, abandon processing each point in this splicing seams unit section divided in advance;
Vertical projection curve detects in the pre-splicing seams unit section divided, being greater than the right along extreme point coordinate as possessed left margin extreme point coordinate, abandoning processing each point in this splicing seams unit section divided in advance.
2. method of seam-line elimination as claimed in claim 1, is characterized in that, also comprise:
Splicing seams gradient map is extracted from described splicing seams;
Described splicing seams gradient map is projected to horizontal direction and vertical direction respectively according to the pre-splicing seams unit section divided, obtains the horizontal projection curve that associates with pixel characteristic and vertical projection curve;
Carry out secondary coarse positioning splicing seams with the extreme point on horizontal projection curve and vertical projection curve respectively, wherein the upper edge extreme point coordinate of horizontal projection curve is less than lower edge extreme point coordinate;
The left margin extreme point coordinate of vertical projection curve is less than lower edge extreme point coordinate.
3. method of seam-line elimination as claimed in claim 1, is characterized in that, describedly carries out coarse positioning to splicing seams and is specially:
Location based on additional testing frame method is carried out to splicing seams;
Carry out, based on the location of additional testing frame method, comprising to splicing seams:
The extraction of splicing seams;
Convert video image to gray level image;
Obtain the gradient map of horizontal direction and vertical direction respectively;
By gradient map binary conversion treatment;
After gradient binary map being superposed frame by frame, carry out Hough transform, utilize totalizer record coversion result; Straight-line equation corresponding to splicing seams is obtained according to totalizer result;
Totalizer result is greater than point corresponding when converting threshold value to retain;
Filling cavity, widens splicing seams scope;
Remove burr.
4. method of seam-line elimination as claimed in claim 2, is characterized in that, also comprise:
Judge the colour-difference of splicing seams both sides, if the colour-difference of certain some both sides is greater than given threshold value in splicing seams, then the colour-difference abandoning the both sides processed in this splicing seams unit section divided in advance is greater than this point of given threshold value.
5., based on a Seamlines removing device for ultrahigh resolution digital jointing wall, it is characterized in that, comprising:
Coarse positioning unit, for carrying out coarse positioning to splicing seams;
Splicing seams edge coordinate and splicing seams width determining unit, for each point orientated as in splicing seams is compared mutually according to the first control parameters, and the extreme value determination splicing seams edge coordinate obtained according to comparison and splicing seams width;
Point rejected unit, the point meeting exclusion condition for described splicing seams width to be compared the fiducial value obtained with the second control parameters is got rid of;
Integrated unit, obtains splicing seams refinement positioning result for the point meeting exclusion condition according to described splicing seams edge coordinate and eliminating and merges frame by frame;
Wherein:
The each point orientated as in splicing seams is compared mutually according to the first control parameters and is specially:
In horizontal splicing seams direction, carry out the comparison according to brightness value by row by orientating each point in splicing seams as, the maximum brightness value determination splicing seams edge ordinate obtained according to comparison;
In vertical splicing seams direction, will the comparison of respectively pressing and arranging and carrying out according to brightness value be orientated in splicing seams as, the maximum brightness value determination splicing seams edge horizontal ordinate obtained according to comparison;
Point rejected unit, specific implementation:
Get rid of when the difference of horizontal projection Curve Maximization point coordinate to compare the point that the fiducial value obtained is greater than presetted pixel value with presetted pixel value;
Get rid of when the difference of vertical projection Curve Maximization point coordinate to compare the point that the fiducial value obtained is greater than presetted pixel value with presetted pixel value;
And:
Horizontal projection curve detecting in the pre-splicing seams unit section divided, being greater than lower edge extreme point coordinate as possessed upper edge extreme point coordinate, abandon processing each point in this splicing seams unit section divided in advance;
Vertical projection curve detects in the pre-splicing seams unit section divided, being greater than the right along extreme point coordinate as possessed left margin extreme point coordinate, abandoning processing each point in this splicing seams unit section divided in advance.
6. cancellation element as claimed in claim 5, is characterized in that, also comprise:
Secondary coarse positioning unit, specific implementation:
Splicing seams gradient map is extracted from described splicing seams;
Described splicing seams gradient map is projected to horizontal direction and vertical direction respectively according to the pre-splicing seams unit section divided, obtains the horizontal projection curve that associates with pixel characteristic and vertical projection curve;
Carry out secondary coarse positioning splicing seams with the extreme point on horizontal projection curve and vertical projection curve respectively, wherein the upper edge extreme point coordinate of horizontal projection curve is less than lower edge extreme point coordinate;
The left margin extreme point coordinate of vertical projection curve is less than lower edge extreme point coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210223658.XA CN102750123B (en) | 2012-06-29 | 2012-06-29 | Based on method of seam-line elimination and the device of ultrahigh resolution numerical monitor combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210223658.XA CN102750123B (en) | 2012-06-29 | 2012-06-29 | Based on method of seam-line elimination and the device of ultrahigh resolution numerical monitor combination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102750123A CN102750123A (en) | 2012-10-24 |
| CN102750123B true CN102750123B (en) | 2016-01-20 |
Family
ID=47030347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210223658.XA Expired - Fee Related CN102750123B (en) | 2012-06-29 | 2012-06-29 | Based on method of seam-line elimination and the device of ultrahigh resolution numerical monitor combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102750123B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108898959B (en) * | 2018-07-27 | 2020-09-01 | 深圳市华星光电技术有限公司 | Splicing type display device and display method thereof |
| CN110910776B (en) * | 2019-12-17 | 2021-06-08 | 威创集团股份有限公司 | Method and device for processing splicing seams of spliced display screen |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6201581B1 (en) * | 1997-02-20 | 2001-03-13 | Sony Corporation | Video signal processing device and method, image synthesizing device, and editing device |
| CN101593072A (en) * | 2009-04-28 | 2009-12-02 | 广东威创视讯科技股份有限公司 | Piece together the disconnected method for processing pen of piece in the wall multi-person labeling system |
| CN102368368A (en) * | 2011-09-16 | 2012-03-07 | 广东威创视讯科技股份有限公司 | Method and device for eliminating splicing seams among spliced display screens, and spliced display system |
| CN102427504A (en) * | 2011-10-08 | 2012-04-25 | 广东威创视讯科技股份有限公司 | Image processing method, device and system based on background splicing wall |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101457563B1 (en) * | 2008-11-11 | 2014-11-04 | 삼성전자주식회사 | Multi-display apparatus |
-
2012
- 2012-06-29 CN CN201210223658.XA patent/CN102750123B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6201581B1 (en) * | 1997-02-20 | 2001-03-13 | Sony Corporation | Video signal processing device and method, image synthesizing device, and editing device |
| CN101593072A (en) * | 2009-04-28 | 2009-12-02 | 广东威创视讯科技股份有限公司 | Piece together the disconnected method for processing pen of piece in the wall multi-person labeling system |
| CN102368368A (en) * | 2011-09-16 | 2012-03-07 | 广东威创视讯科技股份有限公司 | Method and device for eliminating splicing seams among spliced display screens, and spliced display system |
| CN102427504A (en) * | 2011-10-08 | 2012-04-25 | 广东威创视讯科技股份有限公司 | Image processing method, device and system based on background splicing wall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102750123A (en) | 2012-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101859433B (en) | Image mosaic device and method | |
| CN104376535B (en) | A kind of rapid image restorative procedure based on sample | |
| CN109615596A (en) | A kind of denoising method of depth image, device and electronic equipment | |
| CN107750370B (en) | Method and apparatus for determining a depth map for an image | |
| CN103763479A (en) | Splicing device for real-time high speed high definition panoramic video and method thereof | |
| US20120320152A1 (en) | Stereoscopic image generation apparatus and method | |
| CN105719234A (en) | Automatic gloss removing method and system for face area and shooting terminal | |
| EP3005286B1 (en) | Image refocusing | |
| CN109509146A (en) | Image split-joint method and device, storage medium | |
| EP2757789A1 (en) | Image processing system, image processing method, and image processing program | |
| CN106218409A (en) | A kind of can the bore hole 3D automobile instrument display packing of tracing of human eye and device | |
| TW201327474A (en) | Method for generating depth by disparity estimation | |
| US11368661B2 (en) | Image synthesis method, apparatus and device for free-viewpoint | |
| TWI553590B (en) | Method and device for retargeting a 3d content | |
| CN103852243A (en) | Method for detecting optical center of wide-angle lens and optical center detecting device | |
| CN104574331A (en) | Data processing method, device, computer storage medium and user terminal | |
| US20100303350A1 (en) | Purple Fringing Artifact Reduction | |
| US20160286092A1 (en) | Image processing apparatus and image processing method | |
| CN104966092A (en) | Image processing method and device | |
| CN102750123B (en) | Based on method of seam-line elimination and the device of ultrahigh resolution numerical monitor combination | |
| CN109886958A (en) | A kind of method, apparatus and system based on square tube position while welding automatic identification | |
| CN104537627B (en) | A kind of post-processing approach of depth image | |
| JP5820985B2 (en) | Stereoscopic image processing apparatus and stereoscopic image processing method | |
| US11373279B2 (en) | Image processing method and device | |
| US20130163855A1 (en) | Automated detection and correction of stereoscopic edge violations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Kezhu road high tech Industrial Development Zone, Guangzhou city of Guangdong Province, No. 233 510670 Patentee after: Wei Chong group Limited by Share Ltd Address before: 510663 Guangzhou province high tech Industrial Development Zone, Guangdong, Cai road, No. 6, No. Patentee before: Guangdong Weichuangshixun Science and Technology Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20210629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |