JPS631184A - Predictive coding system - Google Patents

Predictive coding system

Info

Publication number
JPS631184A
JPS631184A JP14266986A JP14266986A JPS631184A JP S631184 A JPS631184 A JP S631184A JP 14266986 A JP14266986 A JP 14266986A JP 14266986 A JP14266986 A JP 14266986A JP S631184 A JPS631184 A JP S631184A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
picture elements
value
decoded
predictive
encoded
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
JP14266986A
Inventor
Katsutoshi Sawada
Yoshiyuki Yashima
Original Assignee
Nippon Telegr & Teleph Corp <Ntt>
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

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00Image coding, e.g. from bit-mapped to non bit-mapped
    • G06T9/004Predictors, e.g. intraframe, interframe coding

Abstract

PURPOSE: To improve the efficiency of encoding by obtaining the respective difference values among plural decoded picture element values which are near encoding objective picture elements and making as predictive value itself to be a decoded value when the difference value are in the prescribed condition.
CONSTITUTION: Input picture elements are divided into two groups and as for the first group of picture elements (marked white circle in figure) X1, the predic tive value of the picture elements x1 is made by using encoded . decoded picture elements h, i and g and as for the second group of the picture elements ( marked black circle in figure) x2, the predictive value of x2 is made by using the encoded . decoded picture elements of four first groups (white circle) a∼d positioning up-and-down, right-and-left. Next by using six picture elements a∼f as encoded . decoded picture elements near the picture elements x2 the difference values, a-b, c-d, a-e, c-e, b-f and c-f are counted so as to examine whether or not the prescribed condition is secured. When the condition isn't secured, the quantization . encoding of predictive errors is executed and the code which means a quantizing predictive error is transmitted to a decoder side from a encoder side. When the condition is secured, the code isn't transmit ted and the predictive value itself is set as the decoded value.
COPYRIGHT: (C)1988,JPO&Japio
JP14266986A 1986-06-20 1986-06-20 Predictive coding system Pending JPS631184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14266986A JPS631184A (en) 1986-06-20 1986-06-20 Predictive coding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14266986A JPS631184A (en) 1986-06-20 1986-06-20 Predictive coding system

Publications (1)

Publication Number Publication Date
JPS631184A true true JPS631184A (en) 1988-01-06

Family

ID=15320739

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14266986A Pending JPS631184A (en) 1986-06-20 1986-06-20 Predictive coding system

Country Status (1)

Country Link
JP (1) JPS631184A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1761064A2 (en) * 2005-09-06 2007-03-07 Samsung Electronics Co., Ltd. Methods and apparatus for video intraprediction encoding and decoding
EP1992171A1 (en) * 2006-03-03 2008-11-19 Samsung Electronics Co., Ltd. Method of and apparatus for video intraprediction encoding/decoding
WO2010055675A1 (en) * 2008-11-14 2010-05-20 三菱電機株式会社 Moving image encoding apparatus and moving image decoding apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53125711A (en) * 1977-04-08 1978-11-02 Nec Corp Picture coder
JPS60229484A (en) * 1984-04-26 1985-11-14 Nec Corp Coding and decoding device of dynamic picture signal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53125711A (en) * 1977-04-08 1978-11-02 Nec Corp Picture coder
JPS60229484A (en) * 1984-04-26 1985-11-14 Nec Corp Coding and decoding device of dynamic picture signal

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1761064A2 (en) * 2005-09-06 2007-03-07 Samsung Electronics Co., Ltd. Methods and apparatus for video intraprediction encoding and decoding
EP1992171A1 (en) * 2006-03-03 2008-11-19 Samsung Electronics Co., Ltd. Method of and apparatus for video intraprediction encoding/decoding
EP1992171A4 (en) * 2006-03-03 2010-12-29 Samsung Electronics Co Ltd Method of and apparatus for video intraprediction encoding/decoding
US8165195B2 (en) 2006-03-03 2012-04-24 Samsung Electronics Co., Ltd. Method of and apparatus for video intraprediction encoding/decoding
WO2010055675A1 (en) * 2008-11-14 2010-05-20 三菱電機株式会社 Moving image encoding apparatus and moving image decoding apparatus
US9001892B2 (en) 2008-11-14 2015-04-07 Mitsubishi Electric Corporation Moving image encoder and moving image decoder

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