KR920017485A - 화상신호 부호기 - Google Patents

화상신호 부호기 Download PDF

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Publication number
KR920017485A
KR920017485A KR1019920001707A KR920001707A KR920017485A KR 920017485 A KR920017485 A KR 920017485A KR 1019920001707 A KR1019920001707 A KR 1019920001707A KR 920001707 A KR920001707 A KR 920001707A KR 920017485 A KR920017485 A KR 920017485A
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KR
South Korea
Prior art keywords
image
screen
orthogonal transform
data amount
aspect ratio
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KR1019920001707A
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English (en)
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KR950004121B1 (ko
Inventor
마사카즈 니시노
타쯔로 쥬리
히데끼 오오타까
Original Assignee
다니이 아끼오
마쯔시다덴기산교 가부시기가이샤
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Publication of KR920017485A publication Critical patent/KR920017485A/ko
Application granted granted Critical
Publication of KR950004121B1 publication Critical patent/KR950004121B1/ko

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/015—High-definition television systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/115—Selection of the code volume for a coding unit prior to coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/149—Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability

Abstract

내용 없음

Description

화상신호 부호기
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 일실시예에 있어서의 화상신호부호기의 구성을 도시한 도면.
제2도 및 제3도는 동 실시예의 동작을 설명하기 위한 구성요소의 신호구성도.
제4도는 본 발명의실시예에 있어서의 복호기에 의해 부호화된 데이터를 원래의 화상으로 복귀시키는 부호기의 구성을 도시한 도면.

Claims (1)

  1. 화면의 중앙부분에 대응하는 4:3의 종횡비를 가지는 기본화면과 기본화면이외의 부가화면에 화상 A를 분할하는 수단과, 화상(A)가 입력될때에 기본화면에 있는 직교변환블록(m)의 소정개수의 부호화데이터량과 부가 화면에 있는 직교변환블록(n)의 소정개수의 부호화 데이터량의 합계가 소정데이터량(X)의 범위내에 있도록 코우드화하고, 화상(B)가 입력될때에 화상(A)의 기본화면의 직교변환블록(m)의 소정개수와 동일한 직교변환블록의 개수를 가지는 코우드화 데이터량의 소정데이터량(X)와 동일한 데이터량내에 있도록 코우드화하는 제어수단과, 제어수단에 따라서 화상(A) 또는 화상 (B)의 직교변환 데이터를 코우드화하는 코우드수단으로 구성되어 있고, 화면종횡비가 4:3보다 큰 화상(A)와 화면종횡비가 4:3이 되는 화상(B)를 선택적으로 수신하고 직교변환에 의하여 수신된 화상을 블록화하여 부호화할수 있는 화상 신호부호기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920001707A 1991-02-06 1992-02-06 화상신호부호기 KR950004121B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP91-15191 1991-02-06
JP9115191A JPH04249490A (ja) 1991-02-06 1991-02-06 符号化装置

Publications (2)

Publication Number Publication Date
KR920017485A true KR920017485A (ko) 1992-09-26
KR950004121B1 KR950004121B1 (ko) 1995-04-25

Family

ID=11881959

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920001707A KR950004121B1 (ko) 1991-02-06 1992-02-06 화상신호부호기

Country Status (5)

Country Link
US (1) US5262853A (ko)
EP (1) EP0498616B1 (ko)
JP (1) JPH04249490A (ko)
KR (1) KR950004121B1 (ko)
DE (1) DE69216257T2 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5367334A (en) * 1991-05-20 1994-11-22 Matsushita Electric Industrial Co., Ltd. Video signal encoding and decoding apparatus
JP4150112B2 (ja) * 1998-08-24 2008-09-17 ソニー株式会社 画像データ処理方法および画像データ処理装置
US7443404B2 (en) * 2003-10-17 2008-10-28 Casio Computer Co., Ltd. Image display apparatus, image display controlling method, and image display program

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885637A (en) * 1986-07-26 1989-12-05 Canon Kabushiki Kaisha Encoder
US5014116A (en) * 1988-03-10 1991-05-07 Kabushiki Kaisha Toshiba Color television system
JP2828997B2 (ja) * 1988-07-22 1998-11-25 株式会社日立製作所 適応型変換符号化装置
US5073821A (en) * 1989-01-30 1991-12-17 Matsushita Electric Industrial Co., Ltd. Orthogonal transform coding apparatus for reducing the amount of coded signals to be processed and transmitted
US5010405A (en) * 1989-02-02 1991-04-23 Massachusetts Institute Of Technology Receiver-compatible enhanced definition television system
JPH02226886A (ja) * 1989-02-28 1990-09-10 Sony Corp データ伝送装置及び伝送方法
GB8929152D0 (en) * 1989-12-22 1990-02-28 Gen Electric A digital augmentation system for actv-ii
JP2881886B2 (ja) * 1989-12-30 1999-04-12 ソニー株式会社 映像信号符号化方法及びその装置
EP0453229B1 (en) * 1990-04-17 1997-06-18 Matsushita Electric Industrial Co., Ltd. Method for transmission of variable length code
US5150208A (en) * 1990-10-19 1992-09-22 Matsushita Electric Industrial Co., Ltd. Encoding apparatus
US5122875A (en) * 1991-02-27 1992-06-16 General Electric Company An HDTV compression system

Also Published As

Publication number Publication date
JPH04249490A (ja) 1992-09-04
EP0498616B1 (en) 1997-01-02
US5262853A (en) 1993-11-16
EP0498616A2 (en) 1992-08-12
DE69216257D1 (de) 1997-02-13
EP0498616A3 (en) 1993-12-22
KR950004121B1 (ko) 1995-04-25
DE69216257T2 (de) 1997-06-19

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