GB2218507B - Digital data processing - Google Patents

Digital data processing

Info

Publication number
GB2218507B
GB2218507B GB8811223A GB8811223A GB2218507B GB 2218507 B GB2218507 B GB 2218507B GB 8811223 A GB8811223 A GB 8811223A GB 8811223 A GB8811223 A GB 8811223A GB 2218507 B GB2218507 B GB 2218507B
Authority
GB
United Kingdom
Prior art keywords
data processing
digital data
digital
processing
data
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 - Lifetime
Application number
GB8811223A
Other versions
GB8811223D0 (en
GB2218507A (en
Inventor
Christopher George Harris
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.)
Roke Manor Research Ltd
Plessey Co Ltd
Original Assignee
Roke Manor Research Ltd
Plessey Co Ltd
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 Roke Manor Research Ltd, Plessey Co Ltd filed Critical Roke Manor Research Ltd
Publication of GB8811223D0 publication Critical patent/GB8811223D0/en
Priority to PCT/GB1989/000523 priority Critical patent/WO1990014634A1/en
Priority to EP89906420A priority patent/EP0449827A1/en
Priority to JP1506161A priority patent/JPH03502261A/en
Priority claimed from PCT/GB1989/000523 external-priority patent/WO1990014634A1/en
Priority to CA000607884A priority patent/CA1333424C/en
Priority claimed from CA000607884A external-priority patent/CA1333424C/en
Publication of GB2218507A publication Critical patent/GB2218507A/en
Application granted granted Critical
Publication of GB2218507B publication Critical patent/GB2218507B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • G06T7/246—Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
    • 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
    • G06V10/44—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
    • G06V10/443—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components by matching or filtering
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G08B13/1961—Movement detection not involving frame subtraction, e.g. motion detection on the basis of luminance changes in the image
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/20—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding
GB8811223A 1988-05-12 1988-05-12 Digital data processing Expired - Lifetime GB2218507B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP89906420A EP0449827A1 (en) 1988-05-12 1989-05-15 Digital data processing
PCT/GB1989/000523 WO1990014634A1 (en) 1988-05-12 1989-05-15 Digital data processing
JP1506161A JPH03502261A (en) 1988-05-12 1989-05-15 digital data processing
CA000607884A CA1333424C (en) 1988-05-12 1989-08-09 Digital data processing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/GB1989/000523 WO1990014634A1 (en) 1988-05-12 1989-05-15 Digital data processing
CA000607884A CA1333424C (en) 1988-05-12 1989-08-09 Digital data processing

Publications (3)

Publication Number Publication Date
GB8811223D0 GB8811223D0 (en) 1988-08-24
GB2218507A GB2218507A (en) 1989-11-15
GB2218507B true GB2218507B (en) 1992-02-26

Family

ID=4140434

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8811223A Expired - Lifetime GB2218507B (en) 1988-05-12 1988-05-12 Digital data processing

Country Status (1)

Country Link
GB (1) GB2218507B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0749925B2 (en) * 1989-03-01 1995-05-31 浜松ホトニクス株式会社 Two-dimensional incident position detector
AU699218B2 (en) * 1991-09-12 1998-11-26 Electronic Data Systems Corporation Image analyser
DE69229831T2 (en) * 1991-09-12 2001-04-12 Electronic Data Syst Corp IMAGE ANALYZER
GB2272285B (en) * 1992-06-10 1997-01-15 Secr Defence Method for digitally processing images to determine the position of edges and/or corners therein for guidance of unmanned vehicle
FR2699781B1 (en) * 1992-12-21 1995-02-03 Telecommunications Sa Method for detecting the appearance of point objects in an image.
US6002431A (en) * 1993-03-03 1999-12-14 Goldstar Co., Ltd. Video correction apparatus for camcorder
DE4410603C1 (en) * 1994-03-26 1995-06-14 Jenoptik Technologie Gmbh Detecting faults during inspection of masks, LCDs, circuit boards and semiconductor wafers
US5734735A (en) * 1996-06-07 1998-03-31 Electronic Data Systems Corporation Method and system for detecting the type of production media used to produce a video signal
US5767923A (en) * 1996-06-07 1998-06-16 Electronic Data Systems Corporation Method and system for detecting cuts in a video signal
US6061471A (en) * 1996-06-07 2000-05-09 Electronic Data Systems Corporation Method and system for detecting uniform images in video signal
US5959697A (en) * 1996-06-07 1999-09-28 Electronic Data Systems Corporation Method and system for detecting dissolve transitions in a video signal
US5920360A (en) * 1996-06-07 1999-07-06 Electronic Data Systems Corporation Method and system for detecting fade transitions in a video signal
US5778108A (en) * 1996-06-07 1998-07-07 Electronic Data Systems Corporation Method and system for detecting transitional markers such as uniform fields in a video signal
GB2382708B (en) 2001-11-21 2006-03-15 Roke Manor Research Detection of foreign objects on surfaces
FR2950451B1 (en) 2009-09-18 2011-11-04 Imra Europ Sas ALGORITHM FOR DETECTION OF CONTOUR POINTS IN AN IMAGE
GB0921863D0 (en) 2009-12-15 2010-01-27 Uws Ventures Ltd Image Processing

Also Published As

Publication number Publication date
GB8811223D0 (en) 1988-08-24
GB2218507A (en) 1989-11-15

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20080511