DE69232279T2 - Verfahren zur Verbesserung von zweidimensionalen Bildern - Google Patents

Verfahren zur Verbesserung von zweidimensionalen Bildern

Info

Publication number
DE69232279T2
DE69232279T2 DE69232279T DE69232279T DE69232279T2 DE 69232279 T2 DE69232279 T2 DE 69232279T2 DE 69232279 T DE69232279 T DE 69232279T DE 69232279 T DE69232279 T DE 69232279T DE 69232279 T2 DE69232279 T2 DE 69232279T2
Authority
DE
Germany
Prior art keywords
improving
dimensional images
images
dimensional
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
Application number
DE69232279T
Other languages
English (en)
Other versions
DE69232279D1 (de
Inventor
Amir Israel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
AT&T Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AT&T Corp filed Critical AT&T Corp
Publication of DE69232279D1 publication Critical patent/DE69232279D1/de
Application granted granted Critical
Publication of DE69232279T2 publication Critical patent/DE69232279T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8806—Specially adapted optical and illumination features
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition
    • G06V10/12—Details of acquisition arrangements; Constructional details thereof
    • G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
    • G06V10/145—Illumination specially adapted for pattern recognition, e.g. using gratings
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition
    • G06V10/12—Details of acquisition arrangements; Constructional details thereof
    • G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
    • G06V10/147—Details of sensors, e.g. sensor lenses
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/956—Inspecting patterns on the surface of objects
    • G01N2021/95638—Inspecting patterns on the surface of objects for PCB's
    • G01N2021/95646—Soldering
DE69232279T 1991-02-28 1992-02-21 Verfahren zur Verbesserung von zweidimensionalen Bildern Expired - Fee Related DE69232279T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/662,583 US5097516A (en) 1991-02-28 1991-02-28 Technique for illuminating a surface with a gradient intensity line of light to achieve enhanced two-dimensional imaging

Publications (2)

Publication Number Publication Date
DE69232279D1 DE69232279D1 (de) 2002-01-24
DE69232279T2 true DE69232279T2 (de) 2002-08-08

Family

ID=24658312

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69232279T Expired - Fee Related DE69232279T2 (de) 1991-02-28 1992-02-21 Verfahren zur Verbesserung von zweidimensionalen Bildern

Country Status (4)

Country Link
US (1) US5097516A (de)
EP (1) EP0501683B1 (de)
JP (1) JPH07113966B2 (de)
DE (1) DE69232279T2 (de)

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Also Published As

Publication number Publication date
JPH06168321A (ja) 1994-06-14
DE69232279D1 (de) 2002-01-24
JPH07113966B2 (ja) 1995-12-06
EP0501683B1 (de) 2001-12-12
US5097516A (en) 1992-03-17
EP0501683A2 (de) 1992-09-02
EP0501683A3 (de) 1994-10-12

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