JPS57204980A - Feature extraction processing system - Google Patents

Feature extraction processing system

Info

Publication number
JPS57204980A
JPS57204980A JP56090260A JP9026081A JPS57204980A JP S57204980 A JPS57204980 A JP S57204980A JP 56090260 A JP56090260 A JP 56090260A JP 9026081 A JP9026081 A JP 9026081A JP S57204980 A JPS57204980 A JP S57204980A
Authority
JP
Japan
Prior art keywords
circuit part
extracting
points
memory
recognition objective
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.)
Pending
Application number
JP56090260A
Other languages
Japanese (ja)
Inventor
Hideaki Sugawara
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP56090260A priority Critical patent/JPS57204980A/en
Publication of JPS57204980A publication Critical patent/JPS57204980A/en
Pending 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
    • 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 recognize characters, by not only extracting features in white regions in the circumscribed quadrilateral of a recognition objective character but also extracting features by the ''blurring'' processing for the recognition objective character. CONSTITUTION:The video signal obtained in an observing part 6 is converted to a binary signal indicating black point and white points by a binary circuit part 7 and has, for example, the shape of the circumscribed quadrilateral frame normalized in a normalizing circuit part 8 and is stored on a memory. Contents of this memory are read out, and labels are added to artificial black points 3 by a label adding circuit part 9. In a feature extracting circuit part 10, label additions due to respective scanning in the horizontal left direction, the vertical downward direction, and the vertical upward direction are indicated successively, and a histogram 5 is generated on a basis of obtained artificial black points, thus extracting a feature quantity.
JP56090260A 1981-06-12 1981-06-12 Feature extraction processing system Pending JPS57204980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56090260A JPS57204980A (en) 1981-06-12 1981-06-12 Feature extraction processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56090260A JPS57204980A (en) 1981-06-12 1981-06-12 Feature extraction processing system

Publications (1)

Publication Number Publication Date
JPS57204980A true JPS57204980A (en) 1982-12-15

Family

ID=13993523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56090260A Pending JPS57204980A (en) 1981-06-12 1981-06-12 Feature extraction processing system

Country Status (1)

Country Link
JP (1) JPS57204980A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008056208A (en) * 2006-09-04 2008-03-13 Kubota Corp Crawler type travelling device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008056208A (en) * 2006-09-04 2008-03-13 Kubota Corp Crawler type travelling device

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