DE69323791T2 - Verfahren und Gerät zur Verarbeitung von Bildern mit Symbolen mit dichten Kanten - Google Patents

Verfahren und Gerät zur Verarbeitung von Bildern mit Symbolen mit dichten Kanten

Info

Publication number
DE69323791T2
DE69323791T2 DE69323791T DE69323791T DE69323791T2 DE 69323791 T2 DE69323791 T2 DE 69323791T2 DE 69323791 T DE69323791 T DE 69323791T DE 69323791 T DE69323791 T DE 69323791T DE 69323791 T2 DE69323791 T2 DE 69323791T2
Authority
DE
Germany
Prior art keywords
edges
symbols
intensity image
processing images
angularly oriented
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
DE69323791T
Other languages
English (en)
Other versions
DE69323791D1 (de
Inventor
Stefan Surka
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.)
United Parcel Service of America Inc
United Parcel Service Inc
Original Assignee
United Parcel Service of America Inc
United Parcel Service 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 United Parcel Service of America Inc, United Parcel Service Inc filed Critical United Parcel Service of America Inc
Priority claimed from PCT/US1994/009850 external-priority patent/WO1996007157A1/en
Application granted granted Critical
Publication of DE69323791D1 publication Critical patent/DE69323791D1/de
Publication of DE69323791T2 publication Critical patent/DE69323791T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G06K7/1404—Methods for optical code recognition
    • G06K7/1439—Methods for optical code recognition including a method step for retrieval of the optical code
    • G06K7/1452—Methods for optical code recognition including a method step for retrieval of the optical code detecting bar code edges
    • 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
    • G06V10/24—Aligning, centring, orientation detection or correction of the image
    • 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
    • G06V10/24—Aligning, centring, orientation detection or correction of the image
    • G06V10/245—Aligning, centring, orientation detection or correction of the image by locating a pattern; Special marks for positioning
    • 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
DE69323791T 1992-05-14 1993-05-13 Verfahren und Gerät zur Verarbeitung von Bildern mit Symbolen mit dichten Kanten Expired - Lifetime DE69323791T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US88385392A 1992-05-14 1992-05-14
PCT/US1994/009850 WO1996007157A1 (en) 1993-08-17 1994-08-29 Method and apparatus for determining the fine angular orientation of bar code symbols in two-dimensional ccd images

Publications (2)

Publication Number Publication Date
DE69323791D1 DE69323791D1 (de) 1999-04-15
DE69323791T2 true DE69323791T2 (de) 1999-09-23

Family

ID=46202203

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69323791T Expired - Lifetime DE69323791T2 (de) 1992-05-14 1993-05-13 Verfahren und Gerät zur Verarbeitung von Bildern mit Symbolen mit dichten Kanten

Country Status (6)

Country Link
EP (1) EP0569982B1 (de)
AT (1) ATE177549T1 (de)
DE (1) DE69323791T2 (de)
DK (1) DK0569982T3 (de)
ES (1) ES2131540T3 (de)
GR (1) GR3030322T3 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5487115A (en) * 1992-05-14 1996-01-23 United Parcel Service Method and apparatus for determining the fine angular orientation of bar code symbols in two-dimensional CCD images
US5533144A (en) * 1994-10-17 1996-07-02 Xerox Corporation Anti-counterfeit pattern detector and method
CN105404874B (zh) * 2015-11-27 2018-07-03 成都神州数码索贝科技有限公司 一种基于投影和hough直线检测的车窗识别系统
CN105469057B (zh) * 2015-11-27 2019-04-12 成都神州数码索贝科技有限公司 一种基于hough直线检测和投影的车窗检测方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331049B1 (de) * 1988-02-27 1994-05-18 Fuji Photo Film Co., Ltd. Vorrichtung zum Lesen des Strichcodes eines photographischen Filmes
JP2917624B2 (ja) * 1991-10-16 1999-07-12 オムロン株式会社 バーコードスキャナ

Also Published As

Publication number Publication date
EP0569982A3 (de) 1994-12-07
EP0569982A2 (de) 1993-11-18
ATE177549T1 (de) 1999-03-15
ES2131540T3 (es) 1999-08-01
DE69323791D1 (de) 1999-04-15
GR3030322T3 (en) 1999-09-30
EP0569982B1 (de) 1999-03-10
DK0569982T3 (da) 1999-09-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition