CA2130337A1 - Method and Apparatus for Dynamic Correction of Microscopic Image Signals - Google Patents

Method and Apparatus for Dynamic Correction of Microscopic Image Signals

Info

Publication number
CA2130337A1
CA2130337A1 CA 2130337 CA2130337A CA2130337A1 CA 2130337 A1 CA2130337 A1 CA 2130337A1 CA 2130337 CA2130337 CA 2130337 CA 2130337 A CA2130337 A CA 2130337A CA 2130337 A1 CA2130337 A1 CA 2130337A1
Authority
CA
Canada
Prior art keywords
memory
gain
offset
charge coupled
image signals
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.)
Granted
Application number
CA 2130337
Other languages
French (fr)
Other versions
CA2130337C (en
Inventor
Jon Wallace Hayenga
Robert C. Schmidt
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.)
Neopath Inc
Original Assignee
Jon Wallace Hayenga
Robert C. Schmidt
Neopath, Inc.
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 Jon Wallace Hayenga, Robert C. Schmidt, Neopath, Inc. filed Critical Jon Wallace Hayenga
Publication of CA2130337A1 publication Critical patent/CA2130337A1/en
Application granted granted Critical
Publication of CA2130337C publication Critical patent/CA2130337C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/401—Compensating positionally unequal response of the pick-up or reproducing head

Abstract

A circuit for correcting an image signal received from a camera (102) which includes a plurality of charge coupled devices (102) each for providing a light (112) signal indicative of the intensity of light incident thereon; the plurality of light signals are indicative of an image received by the camera (102). A correction circuit (212) includes: a gain memory (206) for storing a plurality of gain correction factors each associated with a respective charge coupled device, and an offset memory (214) for storing a plurality of offset correction factors each associated with a respective one of the plurality of charged coupled devices (102). The gain memory (206) is responsive to a control circuit (210) for multiplying (208) the plurality of electric signals by the appropriate gain correction factor. Similarly, the offset memory (214) is responsive to a control circuit (210) for adding (216) the appropriate one of the plurality of offset correction factors with the signal from its respective charge coupled device (102).
CA002130337A 1992-02-18 1993-02-18 Method and apparatus for dynamic correction of microscopic image signals Expired - Fee Related CA2130337C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/838,065 US5361140A (en) 1992-02-18 1992-02-18 Method and apparatus for dynamic correction of microscopic image signals
US07/838,065 1992-02-18

Publications (2)

Publication Number Publication Date
CA2130337A1 true CA2130337A1 (en) 1993-08-19
CA2130337C CA2130337C (en) 1998-05-05

Family

ID=25276164

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002130337A Expired - Fee Related CA2130337C (en) 1992-02-18 1993-02-18 Method and apparatus for dynamic correction of microscopic image signals

Country Status (6)

Country Link
US (1) US5361140A (en)
EP (1) EP0627151A4 (en)
JP (1) JP2954704B2 (en)
AU (1) AU670265B2 (en)
CA (1) CA2130337C (en)
WO (1) WO1993016551A1 (en)

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US5978497A (en) * 1994-09-20 1999-11-02 Neopath, Inc. Apparatus for the identification of free-lying cells
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US5715327A (en) * 1994-09-20 1998-02-03 Neopath, Inc. Method and apparatus for detection of unsuitable conditions for automated cytology scoring
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US5740269A (en) * 1994-09-20 1998-04-14 Neopath, Inc. Method and apparatus for robust biological specimen classification
WO1996009604A1 (en) * 1994-09-20 1996-03-28 Neopath, Inc. Apparatus for automated identification of cell groupings on a biological specimen
US5692066A (en) * 1994-09-20 1997-11-25 Neopath, Inc. Method and apparatus for image plane modulation pattern recognition
WO1996009600A1 (en) * 1994-09-20 1996-03-28 Neopath, Inc. Apparatus for identification and integration of multiple cell patterns
WO1996009602A1 (en) * 1994-09-20 1996-03-28 Neopath, Inc. Biological analysis system self-calibration apparatus
US5627908A (en) * 1994-09-20 1997-05-06 Neopath, Inc. Method for cytological system dynamic normalization
US5638459A (en) * 1994-09-20 1997-06-10 Neopath, Inc. Method and apparatus for detecting a microscope slide coverslip
WO1996009594A1 (en) * 1994-09-20 1996-03-28 Neopath, Inc. Apparatus for automated identification of thick cell groupings on a biological specimen
AU3675495A (en) * 1994-09-30 1996-04-26 Neopath, Inc. Method and apparatus for highly efficient computer aided screening
US5726771A (en) * 1994-10-31 1998-03-10 Hewlett-Packard Company System and method for optimizing tonal resolution in an optical scanner
US5625706A (en) * 1995-05-31 1997-04-29 Neopath, Inc. Method and apparatus for continously monitoring and forecasting slide and specimen preparation for a biological specimen population
US5671288A (en) * 1995-05-31 1997-09-23 Neopath, Inc. Method and apparatus for assessing slide and specimen preparation quality
US5619428A (en) * 1995-05-31 1997-04-08 Neopath, Inc. Method and apparatus for integrating an automated system to a laboratory
US6252979B1 (en) 1995-06-07 2001-06-26 Tripath Imaging, Inc. Interactive method and apparatus for sorting biological specimens
US5787208A (en) * 1995-06-07 1998-07-28 Neopath, Inc. Image enhancement method and apparatus
US5621519A (en) * 1995-07-31 1997-04-15 Neopath, Inc. Imaging system transfer function control method and apparatus
US5745601A (en) * 1995-07-31 1998-04-28 Neopath, Inc. Robustness of classification measurement apparatus and method
US5642433A (en) * 1995-07-31 1997-06-24 Neopath, Inc. Method and apparatus for image contrast quality evaluation
US5699794A (en) * 1995-12-19 1997-12-23 Neopath, Inc. Apparatus for automated urine sediment sample handling
US6072603A (en) * 1996-02-26 2000-06-06 Eastman Kodak Company Multiple output CCD image block balancing
JPH09331451A (en) * 1996-06-11 1997-12-22 Mita Ind Co Ltd Image reader
JP3763901B2 (en) * 1996-10-17 2006-04-05 富士写真フイルム株式会社 Image information reader
US5937103A (en) * 1997-01-25 1999-08-10 Neopath, Inc. Method and apparatus for alias free measurement of optical transfer function
DE19707161A1 (en) * 1997-02-22 1998-08-27 Eastman Kodak Co Method and device for scanning slides
US6148099A (en) * 1997-07-03 2000-11-14 Neopath, Inc. Method and apparatus for incremental concurrent learning in automatic semiconductor wafer and liquid crystal display defect classification
US6130967A (en) * 1997-07-03 2000-10-10 Tri Path Imaging, Inc. Method and apparatus for a reduced instruction set architecture for multidimensional image processing
US6122397A (en) * 1997-07-03 2000-09-19 Tri Path Imaging, Inc. Method and apparatus for maskless semiconductor and liquid crystal display inspection
US5959726A (en) * 1997-07-25 1999-09-28 Neopath, Inc. Modulation transfer function test compensation for test pattern duty cycle
US6198839B1 (en) 1997-09-05 2001-03-06 Tripath Imaging, Inc. Dynamic control and decision making method and apparatus
DE19751465C2 (en) * 1997-11-20 1999-09-02 Agfa Gevaert Ag Device and method for determining sensitivity values for copying an image taken with a digital camera and device for copying an image onto copying material
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US6628334B1 (en) * 1998-06-23 2003-09-30 Intel Corporation Method and apparatus for improving image signals
US7369304B2 (en) * 1999-10-29 2008-05-06 Cytyc Corporation Cytological autofocusing imaging systems and methods
US6665060B1 (en) 1999-10-29 2003-12-16 Cytyc Corporation Cytological imaging system and method
CN1244222C (en) * 2001-08-22 2006-03-01 佳能株式会社 Processing of signals from an image sensor consisting of a plurality of sensor areas
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Also Published As

Publication number Publication date
US5361140A (en) 1994-11-01
EP0627151A4 (en) 1995-02-01
AU670265B2 (en) 1996-07-11
CA2130337C (en) 1998-05-05
EP0627151A1 (en) 1994-12-07
WO1993016551A1 (en) 1993-08-19
JP2954704B2 (en) 1999-09-27
AU3723393A (en) 1993-09-03
JPH07504303A (en) 1995-05-11

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