GR3030322T3 - Method and apparatus for processing images with symbols with dense edges. - Google Patents

Method and apparatus for processing images with symbols with dense edges.

Info

Publication number
GR3030322T3
GR3030322T3 GR990401409T GR990401409T GR3030322T3 GR 3030322 T3 GR3030322 T3 GR 3030322T3 GR 990401409 T GR990401409 T GR 990401409T GR 990401409 T GR990401409 T GR 990401409T GR 3030322 T3 GR3030322 T3 GR 3030322T3
Authority
GR
Greece
Prior art keywords
edges
symbols
intensity image
processing images
angularly oriented
Prior art date
Application number
GR990401409T
Other languages
English (en)
Inventor
Stefan Surka
Original Assignee
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
Priority claimed from PCT/US1994/009850 external-priority patent/WO1996007157A1/en
Application filed by United Parcel Service Inc filed Critical United Parcel Service Inc
Publication of GR3030322T3 publication Critical patent/GR3030322T3/el

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Image Analysis (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Processing Of Meat And Fish (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Image Processing (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
GR990401409T 1992-05-14 1999-05-27 Method and apparatus for processing images with symbols with dense edges. GR3030322T3 (en)

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 (1)

Publication Number Publication Date
GR3030322T3 true GR3030322T3 (en) 1999-09-30

Family

ID=46202203

Family Applications (1)

Application Number Title Priority Date Filing Date
GR990401409T GR3030322T3 (en) 1992-05-14 1999-05-27 Method and apparatus for processing images with symbols with dense edges.

Country Status (6)

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

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
DE68915307T2 (de) * 1988-02-27 1994-09-08 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
EP0569982A2 (en) 1993-11-18
DE69323791T2 (de) 1999-09-23
ES2131540T3 (es) 1999-08-01
DK0569982T3 (da) 1999-09-27
ATE177549T1 (de) 1999-03-15
EP0569982A3 (en) 1994-12-07
DE69323791D1 (de) 1999-04-15
EP0569982B1 (en) 1999-03-10

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