GB2005408A - Method and device for identifying objects - Google Patents

Method and device for identifying objects

Info

Publication number
GB2005408A
GB2005408A GB7839075A GB7839075A GB2005408A GB 2005408 A GB2005408 A GB 2005408A GB 7839075 A GB7839075 A GB 7839075A GB 7839075 A GB7839075 A GB 7839075A GB 2005408 A GB2005408 A GB 2005408A
Authority
GB
United Kingdom
Prior art keywords
image
parameters
scanning lines
stored
total
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
GB7839075A
Other versions
GB2005408B (en
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.)
BBC Brown Boveri AG Germany
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Germany
BBC Brown Boveri France SA
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 Brown Boveri und Cie AG Germany, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Germany
Publication of GB2005408A publication Critical patent/GB2005408A/en
Application granted granted Critical
Publication of GB2005408B publication Critical patent/GB2005408B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/022—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of tv-camera scanning
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video 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
    • G06V10/40—Extraction of image or video features
    • G06V10/42—Global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or autocorrelation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/42—Global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or autocorrelation
    • G06V10/421—Global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or autocorrelation by analysing segments intersecting the pattern
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
    • G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
    • G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries

Abstract

In a method and a device for identifying an object with one of a plurality of reference objects, an image B of the object is scanned in an optoelectric converter V and the scanning data is stored in a store BSp. The store BSp is scanned under the control of a scan control circuit DSt and the output is fed into a parameter generator K which produces parameters capable of distinguishing between different objects. The parameters may be, for example, the total image area, the radius of the largest circle centred on the of the image centroid passing through the image, the number of intersections of the image perimeter with the scanning lines and the ratio of the part lengths of the scanning lines lying within the image to the total part length. The parameters are compared with corresponding parameters of reference objects stored in stores RSp1... RSpn by means of a comparator C1 until identity between the parameters is found. <IMAGE>
GB7839075A 1977-10-04 1978-10-03 Method and device for identifying objects Expired GB2005408B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1213877A CH630189A5 (en) 1977-10-04 1977-10-04 METHOD AND DEVICE FOR IDENTIFYING OBJECTS.

Publications (2)

Publication Number Publication Date
GB2005408A true GB2005408A (en) 1979-04-19
GB2005408B GB2005408B (en) 1982-07-28

Family

ID=4380248

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7839075A Expired GB2005408B (en) 1977-10-04 1978-10-03 Method and device for identifying objects

Country Status (7)

Country Link
CH (1) CH630189A5 (en)
DE (1) DE2749682A1 (en)
FR (1) FR2405517A1 (en)
GB (1) GB2005408B (en)
IT (1) IT1100831B (en)
NL (1) NL7809855A (en)
SE (1) SE444238B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133135A (en) * 1982-12-21 1984-07-18 Ferranti Plc Automatic testing equipment
GB2219654A (en) * 1988-05-24 1989-12-13 B & H Specialist Products Limi Aggregate quality monitoring

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3234608A1 (en) * 1982-09-16 1984-03-22 Kraft, Hans Rainer, Dr.-Ing., 1000 Berlin Method and circuit arrangement for generating a position-independent object signature
DE3239567C2 (en) * 1982-10-26 1986-10-16 Schwartauer Werke Gmbh & Co, 2407 Bad Schwartau Device for sorting dried fruits
JPS62267610A (en) * 1986-05-16 1987-11-20 Fuji Electric Co Ltd Detecting system for rotational angle of object pattern
JPH0810132B2 (en) * 1986-06-04 1996-01-31 富士電機株式会社 Target pattern rotation angle detection method
DE4325269A1 (en) * 1993-07-28 1995-02-02 Zeiss Carl Jena Gmbh Arrangement for determining the coordinates of the shape and position of structures, edges and moulded (shaped) elements
DE102007057921A1 (en) 2007-12-01 2009-06-04 Oerlikon Textile Gmbh & Co. Kg Method and device for automated identification of bobbins

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3381274A (en) * 1959-12-18 1968-04-30 Ibm Recognition systems
US3614736A (en) * 1968-05-21 1971-10-19 Ibm Pattern recognition apparatus and methods invariant to translation, scale change and rotation
US3636513A (en) * 1969-10-17 1972-01-18 Westinghouse Electric Corp Preprocessing method and apparatus for pattern recognition
US3748644A (en) * 1969-12-31 1973-07-24 Westinghouse Electric Corp Automatic registration of points in two separate images
US3845466A (en) * 1970-11-18 1974-10-29 California Inst Of Techn System and method for character recognition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133135A (en) * 1982-12-21 1984-07-18 Ferranti Plc Automatic testing equipment
GB2219654A (en) * 1988-05-24 1989-12-13 B & H Specialist Products Limi Aggregate quality monitoring

Also Published As

Publication number Publication date
IT1100831B (en) 1985-09-28
DE2749682A1 (en) 1979-04-05
IT7828381A0 (en) 1978-10-03
DE2749682C2 (en) 1987-12-03
GB2005408B (en) 1982-07-28
SE444238B (en) 1986-03-24
FR2405517A1 (en) 1979-05-04
NL7809855A (en) 1979-04-06
FR2405517B1 (en) 1983-11-25
SE7810318L (en) 1979-04-05
CH630189A5 (en) 1982-05-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee