CN1155261C - 用于mpeg-4视频数据逆量化的方法和设备 - Google Patents
用于mpeg-4视频数据逆量化的方法和设备 Download PDFInfo
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- CN1155261C CN1155261C CNB99805819XA CN99805819A CN1155261C CN 1155261 C CN1155261 C CN 1155261C CN B99805819X A CNB99805819X A CN B99805819XA CN 99805819 A CN99805819 A CN 99805819A CN 1155261 C CN1155261 C CN 1155261C
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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
- H04N19/20—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object 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
- H04N19/124—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
- H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
成份:类型 | 不司量化器标度范围的dc_标度因子 | |||
1至4 | 5至8 | 9至24 | 25至31 | |
亮度:类型1 | 8 | 2×量化器_标度 | 量化器_标度+8 | 2×量化器_标度-16 |
色度:类型2 | 8 | (量化器_标度+13)/2 | 量化器_标度-6 |
for(v=0;v<8;v++){ for(u=0;u<8;u++){ if(QF[v][u]=0) F”[v][u]=0; else if((u=0)&&(v=0)&&(macroblock-intra)){ F”[v][u]=dc-scaler*QF[v][u]; }else{ if(macroblock-intra){ F”[v][u]=(QF[v][u]*W[0][v][u]*quantizer_scale*2)/32; }else{ F”=[v][u]=(((QF[v][u]*2)+Sign(QF[v][u]))*W[1][v][u]* quantizer-sacle)/32; } } } }
dquant码 | 值 |
00011011 | -1-212 |
dbquant码 | 值 |
10011 | -202 |
if(quanti+1=1‖quanti+1==-1 for(v=0;v<8;v++){ for(u=0;u<8;u++){ if(QFi+1[v][u]==0) F”i+1[v][u]=0; else if((u==0)&&(v==0)&&(macrobleck-intra)){ F”i+1[v][u]=dc-scaler*Qfi+1[v][u]; }else{ if(macroblock-intra){ Wi+1[0][v][u]=(quanti+1>0?Wi[0][v][u]+w[0][v][u]:Wi <!-- SIPO <DP n="10"> --> <dp n="d10"/> [0][v][u]-W[0][v][u]; F”i+1[v][u]=(QFi+1[v][u]*Wi+1[0][v][u]*2)/32; }else{ Wi+1[1][v][u]=(quanti+1>0)?Wi[1][v][u]+W W[1][v][u]: Wi[1][v][u]-W[1][v][u]; F”i+1[v][u]=(((QFi+1[v][u]*2)+Sign(QFi+1[v][u]))* Wi+1[1][v][u])/32; } } } } else if(quanti+1==2∥quanti+1==-2) for(v=0;v<8;v++){ for(u=o;u<8;u++){ if(QFi+1[v][u]==0) F”i+1[v][u]=0 else if((u==0)&&(v==0)&&(macroblock-intra)){ F”i+1[v][u]=dc-scaler*QFi+1[v][u]; }else{ if(macroblock-intra){ Wi+1[0][v][u]=(quanti+1>0)?Wi[0][v][u]+W[0][v][u]:Wi [0][v][u]-W[0][v][u]; F”i+1[v][u]=(QFi+1[v][u]*Wi+1[0][v][u]*2)/32; }else{ Wi+1[1][v][u]=(quanti=1>0)?Wi[1][v][u]+W[1][v][u]:Wi [1][v][u]-W[1][v][u]; F”i+1[v][u]=(((QFi+1[v][u]*2)+Sign(QFi+1[v][u])* Wi+1[1][v][u])/32; <!-- SIPO <DP n="11"> --> <dp n="d11"/> } } } } else{ for(v=0;v<8;v++){ for(u=0;u<8;u++){ if(QFi+1[v][u]==0) F”i+1[v][u]=0 else if((u==0)&&(v==0)&&(macroblock-intra){ F”i+1[v][u]=dc-scaler*QFi+1[v][u] }else{ if(macroblock-intra){ Wi+1[0][v][u]=Wi[0][v][u] F”i+1[v][u]=(QFi+1[v][u]*Wi+1[0][v][u]*2)/32; }else{ Wi+1[1][v][u]=Wi[1][v][u] F”i+1[v][u]=(((QFi+1[v][u]*2)+Sigh(QFi+1[v][u]))* Wi+1[1][v][u])/32; } } } } }
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8402598P | 1998-05-04 | 1998-05-04 | |
US60/084,025 | 1998-05-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1299563A CN1299563A (zh) | 2001-06-13 |
CN1155261C true CN1155261C (zh) | 2004-06-23 |
Family
ID=22182411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB99805819XA Expired - Lifetime CN1155261C (zh) | 1998-05-04 | 1999-04-27 | 用于mpeg-4视频数据逆量化的方法和设备 |
Country Status (12)
Country | Link |
---|---|
US (1) | US6385242B1 (zh) |
EP (1) | EP1078532B1 (zh) |
JP (1) | JP4592185B2 (zh) |
KR (1) | KR100597569B1 (zh) |
CN (1) | CN1155261C (zh) |
AT (1) | ATE333758T1 (zh) |
AU (1) | AU748947C (zh) |
CA (1) | CA2329725A1 (zh) |
DE (1) | DE69932429T2 (zh) |
HK (1) | HK1037829A1 (zh) |
TW (1) | TW421974B (zh) |
WO (1) | WO1999057911A1 (zh) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6654931B1 (en) * | 1998-01-27 | 2003-11-25 | At&T Corp. | Systems and methods for playing, browsing and interacting with MPEG-4 coded audio-visual objects |
US6650705B1 (en) * | 2000-05-26 | 2003-11-18 | Mitsubishi Electric Research Laboratories Inc. | Method for encoding and transcoding multiple video objects with variable temporal resolution |
US7295609B2 (en) * | 2001-11-30 | 2007-11-13 | Sony Corporation | Method and apparatus for coding image information, method and apparatus for decoding image information, method and apparatus for coding and decoding image information, and system of coding and transmitting image information |
US6931061B2 (en) * | 2002-11-13 | 2005-08-16 | Sony Corporation | Method of real time MPEG-4 texture decoding for a multiprocessor environment |
KR100999221B1 (ko) * | 2003-02-21 | 2010-12-07 | 파나소닉 주식회사 | 픽처 코딩 방법 및 디코딩 방법 |
TWI226805B (en) * | 2003-08-28 | 2005-01-11 | Mediatek Inc | Efficient video codec system and related method |
TWI228918B (en) * | 2003-09-19 | 2005-03-01 | Mediatek Inc | Video predictive decoding method and apparatus |
US20050100098A1 (en) * | 2003-10-23 | 2005-05-12 | Gong-Sheng Lin | Highly integrated mpeg-4 video decoding unit |
US7986731B2 (en) * | 2004-02-06 | 2011-07-26 | Apple Inc. | H.264/AVC coder incorporating rate and quality controller |
US7869503B2 (en) * | 2004-02-06 | 2011-01-11 | Apple Inc. | Rate and quality controller for H.264/AVC video coder and scene analyzer therefor |
US7453938B2 (en) * | 2004-02-06 | 2008-11-18 | Apple Inc. | Target bitrate estimator, picture activity and buffer management in rate control for video coder |
US7492820B2 (en) * | 2004-02-06 | 2009-02-17 | Apple Inc. | Rate control for video coder employing adaptive linear regression bits modeling |
KR101406156B1 (ko) * | 2006-02-02 | 2014-06-13 | 톰슨 라이센싱 | 움직임 보상 예측을 위한 적응 가중 선택 방법 및 장치 |
AU2006338425B2 (en) * | 2006-02-13 | 2010-12-09 | Kabushiki Kaisha Toshiba | Moving image encoding/decoding method and device and program |
JP4621629B2 (ja) * | 2006-05-25 | 2011-01-26 | 株式会社東芝 | 画像復号装置 |
US8588295B2 (en) * | 2009-03-09 | 2013-11-19 | Mediatek Inc. | Methods and electronic devices for quantization and de-quantization |
US20120183048A1 (en) * | 2011-01-18 | 2012-07-19 | Louis Joseph Kerofsky | Video decoder with reduced dynamic range transform with multiple clipping |
US9641840B2 (en) * | 2011-05-20 | 2017-05-02 | Sony Corporation | Processing device and image processing method for encoding and decoding image |
RU2660613C1 (ru) | 2011-06-30 | 2018-07-06 | Самсунг Электроникс Ко., Лтд. | Способ кодирования видео с регулированием битовой глубины для преобразования с фиксированной запятой и устройство для него, а также способ декодирования видео и устройство для него |
FR3016764B1 (fr) * | 2014-01-17 | 2016-02-26 | Sagemcom Broadband Sas | Procede et dispositif de transcodage de donnees video de h.264 vers h.265 |
WO2018049594A1 (en) * | 2016-09-14 | 2018-03-22 | Mediatek Inc. | Methods of encoder decision for quad-tree plus binary tree structure |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06181522A (ja) * | 1992-10-09 | 1994-06-28 | Hudson Soft Co Ltd | 画像処理方法および装置 |
KR0138641B1 (ko) * | 1992-11-30 | 1998-05-15 | 구자홍 | 역양자화 장치 |
JPH06284412A (ja) * | 1993-03-26 | 1994-10-07 | Sony Corp | 画像信号符号化方法および画像信号符号化装置、画像信号復号化方法および画像信号復号化装置、ならびに画像信号記録媒体 |
EP0714212A3 (en) * | 1994-11-21 | 1999-03-31 | SICAN, GESELLSCHAFT FÜR SILIZIUM-ANWENDUNGEN UND CAD/CAT NIEDERSACHSEN mbH | Video decoder using concurrent processing and resource sharing |
JP3385866B2 (ja) * | 1996-08-29 | 2003-03-10 | 松下電器産業株式会社 | 逆量子化・逆dct回路 |
KR100501902B1 (ko) * | 1996-09-25 | 2005-10-10 | 주식회사 팬택앤큐리텔 | 영상정보부호화/복호화장치및방법 |
US6208693B1 (en) * | 1997-02-14 | 2001-03-27 | At&T Corp | Chroma-key for efficient and low complexity shape representation of coded arbitrary video objects |
US6125142A (en) * | 1997-12-02 | 2000-09-26 | Daewoo Electronics Co., Ltd. | Method and apparatus for encoding object information of a video object plane |
US6438165B2 (en) * | 1998-03-09 | 2002-08-20 | Lg Electronics | Method and apparatus for advanced encoder system |
-
1999
- 1999-04-27 WO PCT/US1999/009088 patent/WO1999057911A1/en active IP Right Grant
- 1999-04-27 DE DE69932429T patent/DE69932429T2/de not_active Expired - Lifetime
- 1999-04-27 EP EP99922736A patent/EP1078532B1/en not_active Expired - Lifetime
- 1999-04-27 JP JP2000547790A patent/JP4592185B2/ja not_active Expired - Lifetime
- 1999-04-27 CA CA002329725A patent/CA2329725A1/en not_active Abandoned
- 1999-04-27 CN CNB99805819XA patent/CN1155261C/zh not_active Expired - Lifetime
- 1999-04-27 AU AU39668/99A patent/AU748947C/en not_active Ceased
- 1999-04-27 AT AT99922736T patent/ATE333758T1/de not_active IP Right Cessation
- 1999-04-27 KR KR1020007012233A patent/KR100597569B1/ko not_active IP Right Cessation
- 1999-05-03 TW TW088107148A patent/TW421974B/zh active
-
2000
- 2000-10-12 US US09/689,070 patent/US6385242B1/en not_active Expired - Lifetime
-
2001
- 2001-11-30 HK HK01108418A patent/HK1037829A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU748947C (en) | 2003-01-30 |
CA2329725A1 (en) | 1999-11-11 |
DE69932429T2 (de) | 2007-03-08 |
AU748947B2 (en) | 2002-06-13 |
EP1078532A1 (en) | 2001-02-28 |
KR20010043274A (ko) | 2001-05-25 |
TW421974B (en) | 2001-02-11 |
WO1999057911A1 (en) | 1999-11-11 |
DE69932429D1 (de) | 2006-08-31 |
JP4592185B2 (ja) | 2010-12-01 |
CN1299563A (zh) | 2001-06-13 |
US6385242B1 (en) | 2002-05-07 |
ATE333758T1 (de) | 2006-08-15 |
EP1078532B1 (en) | 2006-07-19 |
KR100597569B1 (ko) | 2006-07-10 |
JP2002514868A (ja) | 2002-05-21 |
HK1037829A1 (en) | 2002-02-15 |
AU3966899A (en) | 1999-11-23 |
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Owner name: GENERAL INSTRUMENT HOLDING CO., LTD. Free format text: FORMER OWNER: GENERAL INSTRUMENT CORPORATION Effective date: 20130918 Owner name: MOTOROLA MOBILITY LLC Free format text: FORMER OWNER: GENERAL INSTRUMENT HOLDING CO., LTD. Effective date: 20130918 |
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Effective date of registration: 20130918 Address after: Illinois State Patentee after: MOTOROLA MOBILITY LLC Address before: California, USA Patentee before: General Instruments Holding Co.,Ltd. Effective date of registration: 20130918 Address after: California, USA Patentee after: General Instruments Holding Co.,Ltd. Address before: American Pennsylvania Patentee before: GENERAL INSTRUMENT Corp. |
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Effective date of registration: 20160314 Address after: California, USA Patentee after: Google Technology Holdings LLC Address before: Illinois State Patentee before: MOTOROLA MOBILITY LLC |
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