WO2001046899A3 - Multi-resolution label locator - Google Patents

Multi-resolution label locator Download PDF

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Publication number
WO2001046899A3
WO2001046899A3 PCT/US2000/042360 US0042360W WO0146899A3 WO 2001046899 A3 WO2001046899 A3 WO 2001046899A3 US 0042360 W US0042360 W US 0042360W WO 0146899 A3 WO0146899 A3 WO 0146899A3
Authority
WO
WIPO (PCT)
Prior art keywords
image
input image
locator system
label locator
resolution label
Prior art date
Application number
PCT/US2000/042360
Other languages
French (fr)
Other versions
WO2001046899A2 (en
Inventor
Jianxin Wu
Gregory P Skinger
Chai-Seng Jason Wang
James Recktenwalt
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
Application filed by United Parcel Service Inc filed Critical United Parcel Service Inc
Priority to AT00993097T priority Critical patent/ATE279757T1/en
Priority to JP2001547342A priority patent/JP3910447B2/en
Priority to DK00993097T priority patent/DK1234273T3/en
Priority to DE60014959T priority patent/DE60014959T2/en
Priority to EP00993097A priority patent/EP1234273B1/en
Priority to CA002392987A priority patent/CA2392987C/en
Publication of WO2001046899A2 publication Critical patent/WO2001046899A2/en
Publication of WO2001046899A3 publication Critical patent/WO2001046899A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C1/00—Measures preceding sorting according to destination
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/14—Image acquisition
    • G06V30/146—Aligning or centring of the image pick-up or image-field
    • G06V30/147—Determination of region of interest
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/18—Extraction of features or characteristics of the image
    • G06V30/18086—Extraction of features or characteristics of the image by performing operations within image blocks or by using histograms
    • G06V30/18095—Summing image-intensity values; Projection and histogram analysis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/24—Character recognition characterised by the processing or recognition method
    • G06V30/248—Character recognition characterised by the processing or recognition method involving plural approaches, e.g. verification by template match; Resolving confusion among similar patterns, e.g. "O" versus "Q"
    • G06V30/2504—Coarse or fine approaches, e.g. resolution of ambiguities or multiscale approaches
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/40—Document-oriented image-based pattern recognition
    • G06V30/42—Document-oriented image-based pattern recognition based on the type of document
    • G06V30/424—Postal images, e.g. labels or addresses on parcels or postal envelopes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S209/00—Classifying, separating, and assorting solids
    • Y10S209/90—Sorting flat-type mail

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)
  • Navigation (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

A multi-resolution label locator system divides an input image into a plurality of multi-pixel cells. The multi-resolution label locator system then crates a decimated image or low resolution image corresponding to the input image. The decimated image includes a common-characteristic value that corresponds to a multi-pixel cell of the input image. The multi-resolution label locator system identifies one or more areas within the decimated image that have characteristics corresponding to the characteristics of interest. While generating the decimated image, the multi-resolution label locator system simultaneously creates an edge-occurrence image that corresponds to the input image. The edge-occurrence image includes an edge value that corresponds to each cell of the input image. Each edge value represents the number of occurrences of an edge within the pixels of a corresponding cell of the input image. The multi-resolution label locator system identifies one or more candidate areas within the input image that have decimated-image characteristics and edge-occurrence image characteristics corresponding to the characteristics of interest. The multi-resolution label locator system then classifies the candidate areas according to the likelihood of the input image containing indicia having the characteristics of interest. Lastly, the multi-resolution label locator system compiles a list of one or more candidate areas that most likely contain indicia having the characteristics of interest.
PCT/US2000/042360 1999-12-03 2000-11-29 Multi-resolution label locator WO2001046899A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AT00993097T ATE279757T1 (en) 1999-12-03 2000-11-29 DEVICE FOR DETERMINING THE POSITION OF LABELS USING MULTIPLE RESOLUTIONS
JP2001547342A JP3910447B2 (en) 1999-12-03 2000-11-29 Multi-resolution label locator
DK00993097T DK1234273T3 (en) 1999-12-03 2000-11-29 Multi-resolution label locator
DE60014959T DE60014959T2 (en) 1999-12-03 2000-11-29 DEVICE FOR LAYING DETERMINATION OF LABELS, USING MULTIPLE RESOLUTIONS
EP00993097A EP1234273B1 (en) 1999-12-03 2000-11-29 Multi-resolution label locator
CA002392987A CA2392987C (en) 1999-12-03 2000-11-29 Multi-resolution label locator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/454,090 1999-12-03
US09/454,090 US6728391B1 (en) 1999-12-03 1999-12-03 Multi-resolution label locator

Publications (2)

Publication Number Publication Date
WO2001046899A2 WO2001046899A2 (en) 2001-06-28
WO2001046899A3 true WO2001046899A3 (en) 2002-03-14

Family

ID=23803262

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/042360 WO2001046899A2 (en) 1999-12-03 2000-11-29 Multi-resolution label locator

Country Status (10)

Country Link
US (1) US6728391B1 (en)
EP (1) EP1234273B1 (en)
JP (1) JP3910447B2 (en)
CN (1) CN100334591C (en)
AT (1) ATE279757T1 (en)
CA (1) CA2392987C (en)
DE (1) DE60014959T2 (en)
DK (1) DK1234273T3 (en)
ES (1) ES2231309T3 (en)
WO (1) WO2001046899A2 (en)

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US7770799B2 (en) 2005-06-03 2010-08-10 Hand Held Products, Inc. Optical reader having reduced specular reflection read failures
US7780089B2 (en) 2005-06-03 2010-08-24 Hand Held Products, Inc. Digital picture taking optical reader having hybrid monochrome and color image sensor array

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US7780089B2 (en) 2005-06-03 2010-08-24 Hand Held Products, Inc. Digital picture taking optical reader having hybrid monochrome and color image sensor array

Also Published As

Publication number Publication date
ATE279757T1 (en) 2004-10-15
DK1234273T3 (en) 2005-01-31
CA2392987C (en) 2008-04-01
US6728391B1 (en) 2004-04-27
DE60014959D1 (en) 2004-11-18
WO2001046899A2 (en) 2001-06-28
DE60014959T2 (en) 2005-12-01
JP3910447B2 (en) 2007-04-25
CN1415103A (en) 2003-04-30
JP2003518300A (en) 2003-06-03
ES2231309T3 (en) 2005-05-16
CA2392987A1 (en) 2001-06-28
EP1234273A2 (en) 2002-08-28
EP1234273B1 (en) 2004-10-13
CN100334591C (en) 2007-08-29

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