JPS6478089A - Picture encoding system - Google Patents

Picture encoding system

Info

Publication number
JPS6478089A
JPS6478089A JP23555187A JP23555187A JPS6478089A JP S6478089 A JPS6478089 A JP S6478089A JP 23555187 A JP23555187 A JP 23555187A JP 23555187 A JP23555187 A JP 23555187A JP S6478089 A JPS6478089 A JP S6478089A
Authority
JP
Japan
Prior art keywords
polarity
detected
edge
code group
edge part
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
JP23555187A
Other languages
Japanese (ja)
Other versions
JP2537246B2 (en
Inventor
Makiko Tanoue
Osamu Kawai
Takashi Ito
Kiichi Matsuda
Toshitaka Tsuda
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 JP23555187A priority Critical patent/JP2537246B2/en
Publication of JPS6478089A publication Critical patent/JPS6478089A/en
Application granted granted Critical
Publication of JP2537246B2 publication Critical patent/JP2537246B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/004—Predictors, e.g. intraframe, interframe coding

Abstract

PURPOSE:To attain encoding with little mismatch and little distortion by rearranging a code group to be used for the vector quantization in accordance with the number of detected edges and their position and adding the polarity of an edge part by means of a polarity prediction. CONSTITUTION:An edge distribution in a screen reproduced by a screen predicting device 3 is detected by an edge detector 5, and the polarity of the edge part is predicted. A controller 6a reads the code group corresponding to the number of the detected edges from a code book 4, rearranges it in accordance with the position of the detected edge positions, and adds the detected polarity to the edge parts. A vector quantizer 1 obtains the matching with the input vector out of the rearranged code group. The screen predicting device 3 rearranges the code group in accordance with the position of the edges in the same way as the controller 6a, and adds the predicted polarity to the edge part. Thus, the optimum matching can be obtained regardless of the presence or absence of the polarity for the input vector including the edge part.
JP23555187A 1987-09-18 1987-09-18 Image coding method Expired - Fee Related JP2537246B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23555187A JP2537246B2 (en) 1987-09-18 1987-09-18 Image coding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23555187A JP2537246B2 (en) 1987-09-18 1987-09-18 Image coding method

Publications (2)

Publication Number Publication Date
JPS6478089A true JPS6478089A (en) 1989-03-23
JP2537246B2 JP2537246B2 (en) 1996-09-25

Family

ID=16987659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23555187A Expired - Fee Related JP2537246B2 (en) 1987-09-18 1987-09-18 Image coding method

Country Status (1)

Country Link
JP (1) JP2537246B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07177502A (en) * 1993-12-17 1995-07-14 Sutajio Gen:Kk Method for compressing picture information, compressed picture information recording medium, and compressed picture information reproducing device
JP2006229461A (en) * 2005-02-16 2006-08-31 Sony Corp Encoder and encoding method, decoder and decoding method, image processing system and image processing method, recording medium, and program
JP2013214976A (en) * 2007-01-19 2013-10-17 Samsung Electronics Co Ltd Method and device for effectively compressing and restoring edge region

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07177502A (en) * 1993-12-17 1995-07-14 Sutajio Gen:Kk Method for compressing picture information, compressed picture information recording medium, and compressed picture information reproducing device
JP2006229461A (en) * 2005-02-16 2006-08-31 Sony Corp Encoder and encoding method, decoder and decoding method, image processing system and image processing method, recording medium, and program
JP2013214976A (en) * 2007-01-19 2013-10-17 Samsung Electronics Co Ltd Method and device for effectively compressing and restoring edge region

Also Published As

Publication number Publication date
JP2537246B2 (en) 1996-09-25

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees