KR910005591A - 적응양자화 부호화 복호화기 - Google Patents

적응양자화 부호화 복호화기 Download PDF

Info

Publication number
KR910005591A
KR910005591A KR1019900012778A KR900012778A KR910005591A KR 910005591 A KR910005591 A KR 910005591A KR 1019900012778 A KR1019900012778 A KR 1019900012778A KR 900012778 A KR900012778 A KR 900012778A KR 910005591 A KR910005591 A KR 910005591A
Authority
KR
South Korea
Prior art keywords
quantization
level
input signal
adaptive quantization
allowable range
Prior art date
Application number
KR1019900012778A
Other languages
English (en)
Other versions
KR940005516B1 (ko
Inventor
도꾸미찌 무라까미
요시아끼 가또
히데오 오하라
Original Assignee
시기 모리야
미쯔비시덴끼 가부시끼가이샤
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=16668919&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR910005591(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 시기 모리야, 미쯔비시덴끼 가부시끼가이샤 filed Critical 시기 모리야
Publication of KR910005591A publication Critical patent/KR910005591A/ko
Application granted granted Critical
Publication of KR940005516B1 publication Critical patent/KR940005516B1/ko

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3044—Conversion to or from differential modulation with several bits only, i.e. the difference between successive samples being coded by more than one bit, e.g. differential pulse code modulation [DPCM]
    • H03M7/3046—Conversion to or from differential modulation with several bits only, i.e. the difference between successive samples being coded by more than one bit, e.g. differential pulse code modulation [DPCM] adaptive, e.g. adaptive differential pulse code modulation [ADPCM]
    • 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
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive 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
    • H04N19/102—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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Analogue/Digital Conversion (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

내용 없음

Description

적응양자화 부호화 복호화기
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3도는 본 발명에 의한 양자화 부호화부에 마련된 리미터 A의 특성을 도시한 도면.
제4도는 본 발명에 의한 양자화 복호화부에 마련된 리미터 B의 특성을 도시한 도면.

Claims (1)

  1. 유한어 길이의 디지탈 입력신호를 이산적인 레벨로 압축 변한하는 양자화 부호롸 복호호기에 있어서, 각 입력신호마다 양자화의 세김폭을 적응적으로 변화시켜서 양자화를 실행하고, 이산레벨의 대표값이 입력 신호의 허용범위를 초과한 경우에는 양자화 부호화부에서 허용범위내의 1레벨 원점에 가까운 이산레벨로 부호화하는 수단 또는 양자화 복호화부에서 출력신호레벨의 허용 범위내로 제한하는 수단을 구비한 것을 특징으로 하는 적응 양자화 부호와 복호화기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900012778A 1989-08-21 1990-08-20 적응 양자화 부호화 복호화기 KR940005516B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1-215233 1989-08-21
JP21523389A JPH0828875B2 (ja) 1989-08-21 1989-08-21 符号化装置および復号化装置

Publications (2)

Publication Number Publication Date
KR910005591A true KR910005591A (ko) 1991-03-30
KR940005516B1 KR940005516B1 (ko) 1994-06-20

Family

ID=16668919

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900012778A KR940005516B1 (ko) 1989-08-21 1990-08-20 적응 양자화 부호화 복호화기

Country Status (11)

Country Link
US (1) US5072295A (ko)
EP (1) EP0414193B1 (ko)
JP (1) JPH0828875B2 (ko)
KR (1) KR940005516B1 (ko)
AU (1) AU625476B2 (ko)
CA (1) CA2023543C (ko)
DE (1) DE69027820T2 (ko)
FI (1) FI98421C (ko)
HK (1) HK1008129A1 (ko)
NO (1) NO306749B1 (ko)
SG (1) SG45452A1 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100341673B1 (ko) * 2000-03-25 2002-06-24 박홍기 무우를 이용한 증류수식 음용수의 제조 방법
KR100727787B1 (ko) * 1995-01-25 2007-11-09 톰슨 비디오신호압축시스템들을위한양자화회로

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0379182A (ja) * 1989-08-23 1991-04-04 Fujitsu Ltd 画像符号化制御方式
JP2892783B2 (ja) * 1990-07-09 1999-05-17 松下電器産業株式会社 動画像信号の符号化装置
JPH04256298A (ja) * 1991-02-08 1992-09-10 Toshiba Corp 動画像符号化装置
JPH05183888A (ja) * 1991-12-27 1993-07-23 Mitsubishi Electric Corp 情報源符号化装置
JP2894067B2 (ja) * 1992-02-26 1999-05-24 日本電気株式会社 動画像符号化制御方法および動画像符号化装置
JPH06141185A (ja) * 1992-10-26 1994-05-20 Nec Corp 画像間引き装置
JPH06165151A (ja) * 1992-11-25 1994-06-10 Matsushita Electric Ind Co Ltd 映像符号量制御装置
JPH07170407A (ja) * 1993-12-14 1995-07-04 Nec Corp 画像データ圧縮システム
US5537440A (en) * 1994-01-07 1996-07-16 Motorola, Inc. Efficient transcoding device and method
FR2718303B1 (fr) * 1994-03-30 1996-07-12 Sgs Thomson Microelectronics Circuit de quantification.
US5940130A (en) * 1994-04-21 1999-08-17 British Telecommunications Public Limited Company Video transcoder with by-pass transfer of extracted motion compensation data
KR0128881B1 (ko) * 1994-04-30 1998-04-10 배순훈 디지틀화상복호화장치
KR0129573B1 (ko) * 1994-04-30 1998-04-10 배순훈 디지탈 화상 복호화를 위한 디씨(dc) 계수의 오차보상 방법
US6141446A (en) * 1994-09-21 2000-10-31 Ricoh Company, Ltd. Compression and decompression system with reversible wavelets and lossy reconstruction
US5889561A (en) * 1994-11-04 1999-03-30 Rca Thomson Licensing Corporation Method and apparatus for scaling a compressed video bitstream
JPH08256341A (ja) * 1995-03-17 1996-10-01 Sony Corp 画像信号符号化方法、画像信号符号化装置、画像信号記録媒体、及び画像信号復号化装置
US5731837A (en) 1996-01-25 1998-03-24 Thomson Multimedia, S.A. Quantization circuitry as for video signal compression systems
US5870146A (en) * 1997-01-21 1999-02-09 Multilink, Incorporated Device and method for digital video transcoding
JP3143406B2 (ja) * 1997-02-19 2001-03-07 三洋電機株式会社 音声符号化方法
IL122361A0 (en) 1997-11-29 1998-04-05 Algotec Systems Ltd Image compression method
US7403561B2 (en) * 2003-04-04 2008-07-22 Avid Technology, Inc. Fixed bit rate, intraframe compression and decompression of video
US7433519B2 (en) * 2003-04-04 2008-10-07 Avid Technology, Inc. Bitstream format for compressed image data
US7580584B2 (en) 2003-07-18 2009-08-25 Microsoft Corporation Adaptive multiple quantization
US8218624B2 (en) 2003-07-18 2012-07-10 Microsoft Corporation Fractional quantization step sizes for high bit rates
US10554985B2 (en) 2003-07-18 2020-02-04 Microsoft Technology Licensing, Llc DC coefficient signaling at small quantization step sizes
US7602851B2 (en) 2003-07-18 2009-10-13 Microsoft Corporation Intelligent differential quantization of video coding
US7738554B2 (en) 2003-07-18 2010-06-15 Microsoft Corporation DC coefficient signaling at small quantization step sizes
US7801383B2 (en) 2004-05-15 2010-09-21 Microsoft Corporation Embedded scalar quantizers with arbitrary dead-zone ratios
US8422546B2 (en) 2005-05-25 2013-04-16 Microsoft Corporation Adaptive video encoding using a perceptual model
US7995649B2 (en) 2006-04-07 2011-08-09 Microsoft Corporation Quantization adjustment based on texture level
US7974340B2 (en) 2006-04-07 2011-07-05 Microsoft Corporation Adaptive B-picture quantization control
US8130828B2 (en) 2006-04-07 2012-03-06 Microsoft Corporation Adjusting quantization to preserve non-zero AC coefficients
US8059721B2 (en) 2006-04-07 2011-11-15 Microsoft Corporation Estimating sample-domain distortion in the transform domain with rounding compensation
US8503536B2 (en) 2006-04-07 2013-08-06 Microsoft Corporation Quantization adjustments for DC shift artifacts
US8711925B2 (en) 2006-05-05 2014-04-29 Microsoft Corporation Flexible quantization
US9454974B2 (en) * 2006-07-31 2016-09-27 Qualcomm Incorporated Systems, methods, and apparatus for gain factor limiting
US8238424B2 (en) 2007-02-09 2012-08-07 Microsoft Corporation Complexity-based adaptive preprocessing for multiple-pass video compression
US20080240257A1 (en) * 2007-03-26 2008-10-02 Microsoft Corporation Using quantization bias that accounts for relations between transform bins and quantization bins
US8498335B2 (en) 2007-03-26 2013-07-30 Microsoft Corporation Adaptive deadzone size adjustment in quantization
US8243797B2 (en) 2007-03-30 2012-08-14 Microsoft Corporation Regions of interest for quality adjustments
US8442337B2 (en) 2007-04-18 2013-05-14 Microsoft Corporation Encoding adjustments for animation content
US8331438B2 (en) 2007-06-05 2012-12-11 Microsoft Corporation Adaptive selection of picture-level quantization parameters for predicted video pictures
US8189933B2 (en) 2008-03-31 2012-05-29 Microsoft Corporation Classifying and controlling encoding quality for textured, dark smooth and smooth video content
US8897359B2 (en) 2008-06-03 2014-11-25 Microsoft Corporation Adaptive quantization for enhancement layer video coding
US9167261B2 (en) 2011-11-07 2015-10-20 Sharp Laboratories Of America, Inc. Video decoder with constrained dynamic range
US10531099B2 (en) * 2016-09-30 2020-01-07 The Mitre Corporation Systems and methods for distributed quantization of multimodal images

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331426A1 (de) * 1983-08-31 1985-03-14 Siemens AG, 1000 Berlin und 8000 München Anordnung zur zweidimensionalen dpcm-codierung
DE3511660A1 (de) * 1985-03-29 1986-10-02 Siemens AG, 1000 Berlin und 8000 München Verfahren zur verbesserung der bildqualitaet bei dpcm-codierten bildsignalen
JPS62214792A (ja) * 1986-03-14 1987-09-21 Fujitsu Ltd 差分符号化装置
DE3788674D1 (de) * 1986-04-19 1994-02-17 Philips Patentverwaltung Hybrid-Codierer für Videosignale.
BE1000643A5 (fr) * 1987-06-05 1989-02-28 Belge Etat Procede de codage de signaux d'image.
JP2603963B2 (ja) * 1987-09-10 1997-04-23 株式会社東芝 動画像符号化装置
US4847866A (en) * 1988-02-01 1989-07-11 Eastman Kodak Company Differential pulse code modulation scheme incorporating a reconstructed value constrainer
US4893184A (en) * 1988-06-14 1990-01-09 Siemens Aktiengesellschaft Arrangement for DPCM-coding with high data rate
US4891698A (en) * 1988-06-14 1990-01-02 Siemens Aktiengesellschaft Arrangement for DPCM-coding of video signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100727787B1 (ko) * 1995-01-25 2007-11-09 톰슨 비디오신호압축시스템들을위한양자화회로
KR100341673B1 (ko) * 2000-03-25 2002-06-24 박홍기 무우를 이용한 증류수식 음용수의 제조 방법

Also Published As

Publication number Publication date
KR940005516B1 (ko) 1994-06-20
JPH0378382A (ja) 1991-04-03
NO903668D0 (no) 1990-08-21
CA2023543A1 (en) 1992-02-18
FI904133A0 (fi) 1990-08-21
EP0414193A2 (en) 1991-02-27
CA2023543C (en) 1994-07-12
DE69027820T2 (de) 1996-11-21
NO306749B1 (no) 1999-12-13
AU6113690A (en) 1991-02-21
HK1008129A1 (en) 1999-04-30
EP0414193A3 (en) 1991-12-27
US5072295A (en) 1991-12-10
DE69027820D1 (de) 1996-08-22
FI98421B (fi) 1997-02-28
SG45452A1 (en) 1998-01-16
AU625476B2 (en) 1992-07-09
NO903668L (no) 1991-02-22
JPH0828875B2 (ja) 1996-03-21
EP0414193B1 (en) 1996-07-17
FI98421C (fi) 1997-06-10

Similar Documents

Publication Publication Date Title
KR910005591A (ko) 적응양자화 부호화 복호화기
KR910008975A (ko) 오디오 신호 처리 방법
KR930005468A (ko) 적응 dct/dpcm부호기에 의한 영상신호부호화방법 및 복호화방법
KR950704864A (ko) 차분 코팅 원리를 구현하는 전송 시스템(Transmission system impiementing dif-ferent coding principles)
KR930020412A (ko) 신호 양자화 장치 및 방법
KR940010791A (ko) 적응적 가변길이 부호기
KR910005691A (ko) 변환 부호화 장치
KR910700526A (ko) 고품질 오디오용 저속 비트 변환 코더, 디코더 및 인코더/디코더
KR960036786A (ko) 영상 신호 부호화 장치
KR950002472A (ko) 인간의 시각특성을 이용한 디씨(dc) 변환계수 양자화기
KR930024507A (ko) 영상데이타의 가변장부호화/복호화방법 및 장치
KR930014487A (ko) 가변길이의 적응 영상 압축 방법
KR900017409A (ko) 화상 데이타의 전송 방법 및 그 전송 장치
EP0402149A3 (en) Coding device
KR880701049A (ko) 디지탈 형식에 의한 정보 전송법
ATE204690T1 (de) Bildsignalkodierung und -dekodierung
KR880012028A (ko) 부호화 복호화 방법
KR960700570A (ko) 신호 부호화 장치, 신호 복호화 장치, 기록 매체 및 신호 부호화 방법(Signal encoding apparatus, signal decoding apparatus, recording medium, and signal encoding method)
KR910005690A (ko) 화상 데이타의 부호화 장치
KR950030491A (ko) 부호화기
KR970057948A (ko) 양자화 스텝값 발생장치
KR950022189A (ko) 데이타압축을 위한 비트단위 가변장부호화방법
KR950002477A (ko) 동영상 부호화장치의 가변길이 부호화방법 및 장치
KR920015751A (ko) Bcd/그레이 코드 변환기
KR970050143A (ko) 런, 엠프 검색 장치

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20100610

Year of fee payment: 17

EXPY Expiration of term