JPS578880A - Sorting processor of character pattern - Google Patents

Sorting processor of character pattern

Info

Publication number
JPS578880A
JPS578880A JP8352480A JP8352480A JPS578880A JP S578880 A JPS578880 A JP S578880A JP 8352480 A JP8352480 A JP 8352480A JP 8352480 A JP8352480 A JP 8352480A JP S578880 A JPS578880 A JP S578880A
Authority
JP
Japan
Prior art keywords
character
character pattern
black
contribution
pattern
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
JP8352480A
Other languages
Japanese (ja)
Other versions
JPS6238752B2 (en
Inventor
Norihiro Hagita
Isao Masuda
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP8352480A priority Critical patent/JPS578880A/en
Publication of JPS578880A publication Critical patent/JPS578880A/en
Publication of JPS6238752B2 publication Critical patent/JPS6238752B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G06V30/182—Extraction of features or characteristics of the image by coding the contour of the pattern
    • G06V30/1823—Extraction of features or characteristics of the image by coding the contour of the pattern using vector-coding
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Discrimination (AREA)

Abstract

PURPOSE:To realize a highly efficient sorting of character subjects, by sorting the character patterns based on the degree of directional contribution of the length of the black dot row obtained with every direction from all black picture elements of the character pattern. CONSTITUTION:For the character pattern obtained by a photoelectric conversion or the like, the antennas are extended in eight directions decided previously from at least all black picture elements 8-1-8-3 of a character pattern 7 that received a binary coding, a normalization of position and size, a character framing process and a smoothing. Then the number of consecutive black dots obtained in each direction is calculated to obtain the degree of directional contribution of the black dots. Based on the value of the contribution, the features showing the distribution of length and direction are extracted for each character line of the character pattern to produce a feature table to sort the character patterns. A matching is obtained between the feature table and the feature dictionary table of each character that is already stored. In such way, the character patterns are sorted.
JP8352480A 1980-06-20 1980-06-20 Sorting processor of character pattern Granted JPS578880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8352480A JPS578880A (en) 1980-06-20 1980-06-20 Sorting processor of character pattern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8352480A JPS578880A (en) 1980-06-20 1980-06-20 Sorting processor of character pattern

Publications (2)

Publication Number Publication Date
JPS578880A true JPS578880A (en) 1982-01-18
JPS6238752B2 JPS6238752B2 (en) 1987-08-19

Family

ID=13804860

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8352480A Granted JPS578880A (en) 1980-06-20 1980-06-20 Sorting processor of character pattern

Country Status (1)

Country Link
JP (1) JPS578880A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58158777A (en) * 1982-03-16 1983-09-21 Nec Corp Character recognizing system
EP0670555A1 (en) * 1992-09-28 1995-09-06 Olympus Optical Co., Ltd. Dot code and information recording/reproducing system for recording/reproducing dot code
US6366699B1 (en) 1997-12-04 2002-04-02 Nippon Telegraph And Telephone Corporation Scheme for extractions and recognitions of telop characters from video data

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58158777A (en) * 1982-03-16 1983-09-21 Nec Corp Character recognizing system
EP0670555A1 (en) * 1992-09-28 1995-09-06 Olympus Optical Co., Ltd. Dot code and information recording/reproducing system for recording/reproducing dot code
EP0670555A4 (en) * 1992-09-28 1997-09-24 Olympus Optical Co Dot code and information recording/reproducing system for recording/reproducing dot code.
US5896403A (en) * 1992-09-28 1999-04-20 Olympus Optical Co., Ltd. Dot code and information recording/reproducing system for recording/reproducing the same
US6052813A (en) * 1992-09-28 2000-04-18 Olympus Optical Co., Ltd. Dot code including a plurality of blocks wherein each of the blocks has a block address pattern representing an address of each of the blocks
US6058498A (en) * 1992-09-28 2000-05-02 Olympus Optical Co., Ltd. Dot code and information recording/reproducing system for recording/reproducing the same
US6460155B1 (en) 1992-09-28 2002-10-01 Olympus Optical Co., Ltd. Information reproducing system capable of manually reading an optically readable code and repeatedly reproducing voice information included in the code
US6622276B2 (en) 1992-09-28 2003-09-16 Olympus Optical Co., Ltd. Recording medium, information reproducing apparatus and information reproducing method
US6366699B1 (en) 1997-12-04 2002-04-02 Nippon Telegraph And Telephone Corporation Scheme for extractions and recognitions of telop characters from video data
US6501856B2 (en) 1997-12-04 2002-12-31 Nippon Telegraph And Telephone Corporation Scheme for extraction and recognition of telop characters from video data

Also Published As

Publication number Publication date
JPS6238752B2 (en) 1987-08-19

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