CA930860A - Methods and apparatus for determining the quantity and/or other physical parameters of objects - Google Patents

Methods and apparatus for determining the quantity and/or other physical parameters of objects

Info

Publication number
CA930860A
CA930860A CA083621A CA83621A CA930860A CA 930860 A CA930860 A CA 930860A CA 083621 A CA083621 A CA 083621A CA 83621 A CA83621 A CA 83621A CA 930860 A CA930860 A CA 930860A
Authority
CA
Canada
Prior art keywords
objects
determining
methods
physical parameters
parameters
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
Application number
CA083621A
Inventor
R. A. Morton Roger
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.)
Bausch and Lomb Inc
Original Assignee
Bausch and Lomb 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 Bausch and Lomb Inc filed Critical Bausch and Lomb Inc
Application granted granted Critical
Publication of CA930860A publication Critical patent/CA930860A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M11/00—Counting of objects distributed at random, e.g. on a surface
    • G06M11/02—Counting of objects distributed at random, e.g. on a surface using an electron beam scanning a surface line by line, e.g. of blood cells on a substrate
    • G06M11/04—Counting of objects distributed at random, e.g. on a surface using an electron beam scanning a surface line by line, e.g. of blood cells on a substrate with provision for distinguishing between different sizes of objects
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/60—Analysis of geometric attributes
    • G06T7/62—Analysis of geometric attributes of area, perimeter, diameter or volume
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/60—Type of objects
    • G06V20/69—Microscopic objects, e.g. biological cells or cellular parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Geometry (AREA)
  • Image Analysis (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Image Input (AREA)
  • Picture Signal Circuits (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measurement Of Radiation (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Image Processing (AREA)
CA083621A 1969-06-23 1970-05-25 Methods and apparatus for determining the quantity and/or other physical parameters of objects Expired CA930860A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83567369A 1969-06-23 1969-06-23

Publications (1)

Publication Number Publication Date
CA930860A true CA930860A (en) 1973-07-24

Family

ID=25270159

Family Applications (1)

Application Number Title Priority Date Filing Date
CA083621A Expired CA930860A (en) 1969-06-23 1970-05-25 Methods and apparatus for determining the quantity and/or other physical parameters of objects

Country Status (6)

Country Link
BE (1) BE752352A (en)
CA (1) CA930860A (en)
DE (3) DE2030662C3 (en)
FR (1) FR2047034B1 (en)
GB (4) GB1328124A (en)
NL (1) NL7009146A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2443410C3 (en) * 1974-09-11 1981-10-01 Artek Systems Corp., Farmingdale, N.Y. Device for counting microbiological colonies
DE3138757A1 (en) * 1981-09-29 1983-05-05 Siemens AG, 1000 Berlin und 8000 München Method for sensing text sections from an original and device for carrying out the method
JPS58176638A (en) * 1982-04-09 1983-10-17 Dainippon Screen Mfg Co Ltd Preparation of cut mask plate
GB2129547B (en) * 1982-11-02 1986-05-21 Cambridge Instr Ltd Reticle inspection
JPH03221802A (en) * 1989-12-20 1991-09-30 Reichhold Chem Inc Method of measuring particle size and size distribution
DE4027732A1 (en) * 1990-09-01 1992-03-05 Thiedig Ullrich CAMERA CHIP FOR A CAMERA DETECTING AND EVALUATING DOTS
EP0620428B1 (en) * 1993-03-19 1998-09-23 Becton, Dickinson and Company Method for compression of multiparameter event list recordings
DE102011011930A1 (en) 2011-02-18 2012-08-23 Hella Kgaa Hueck & Co. Method and system for determining a number of transition objects
EP2690581A1 (en) * 2012-07-27 2014-01-29 Canon Kabushiki Kaisha Method and apparatus for detecting a pupil
CN114708335B (en) * 2022-03-20 2023-03-14 元橡科技(苏州)有限公司 External parameter calibration system, calibration method, application and storage medium of binocular stereo camera

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB747718A (en) * 1952-07-08 1956-04-11 Mullard Radio Valve Co Ltd Improvements in or relating to apparatus for counting particles
GB778289A (en) * 1954-05-28 1957-07-03 Cinema Television Ltd Improvements in or relating to apparatus for automatic counting
GB778288A (en) * 1954-05-28 1957-07-03 Cinema Television Ltd Improvements in or relating to the electronic counting of objects
DE1084059B (en) * 1957-05-17 1960-06-23 Philips Nv Device for particle counting
US2965294A (en) * 1958-01-23 1960-12-20 Rank Cintel Ltd Object counting apparatus

Also Published As

Publication number Publication date
BE752352A (en) 1971-01-01
GB1328124A (en) 1973-08-30
GB1328122A (en) 1973-08-30
FR2047034A1 (en) 1971-03-12
GB1328121A (en) 1973-08-30
DE2030662A1 (en) 1971-01-14
DE2065927B2 (en) 1978-12-14
DE2030662C3 (en) 1980-04-03
DE2065764A1 (en) 1976-07-29
NL7009146A (en) 1970-12-28
FR2047034B1 (en) 1975-04-18
DE2065927C3 (en) 1979-08-16
DE2030662B2 (en) 1977-04-21
DE2065927A1 (en) 1977-06-23
GB1328123A (en) 1973-08-30

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