JP2002506605A - データ圧縮 - Google Patents
データ圧縮Info
- Publication number
- JP2002506605A JP2002506605A JP55511499A JP55511499A JP2002506605A JP 2002506605 A JP2002506605 A JP 2002506605A JP 55511499 A JP55511499 A JP 55511499A JP 55511499 A JP55511499 A JP 55511499A JP 2002506605 A JP2002506605 A JP 2002506605A
- Authority
- JP
- Japan
- Prior art keywords
- data
- image
- compression
- value
- amount
- 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.)
- Ceased
Links
Classifications
-
- 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
-
- 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
- H04N19/136—Incoming video signal characteristics or properties
- H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
-
- 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
- H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
-
- 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
- H04N19/172—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 picture, frame or field
-
- 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
- H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
- H04N19/192—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding the adaptation method, adaptation tool or adaptation type being iterative or recursive
-
- 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
- H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
- H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
-
- 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
- H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
- H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
- H04N19/197—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters including determination of the initial value of an encoding parameter
-
- 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
- H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
-
- 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
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23608—Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2365—Multiplexing of several video streams
- H04N21/23655—Statistical multiplexing, e.g. by controlling the encoder to alter its bitrate to optimize the bandwidth utilization
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4344—Remultiplexing of multiplex streams, e.g. by modifying time stamps or remapping the packet identifiers
-
- 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
-
- 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
- H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computing Systems (AREA)
- Theoretical Computer Science (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Image Processing (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.圧縮パラメータに依存してデータを圧縮する方法であって、 − 前記圧縮パラメータの初期値に基づいて、どの程度の圧縮データ量を将来の 瞬時に取得するかを予測するステップと、 − 予測されたデータ量と所望のデータ量との間の差に基づいて、前記初期値を 適合させて、前記圧縮パラメータの適合値を取り出すステップと、 − 次の適合ステップが続く次の予測ステップが実行されるまで、前記圧縮パラ メータの適合値を適用するステップとを繰り返し実行することを特徴とする方法 。 2.前記圧縮パラメータが、前記3ステップを少なくとも1回実行する期間に亘 って供給すべき圧縮データ量に関連することを特徴とする請求の範囲1記載のデ ータ圧縮方法。 3.前記将来の瞬時が、前記圧縮データの予測される相当の増大の直前に存在す ることを特徴とする請求の範囲1記載のデータ圧縮方法。 4.請求の範囲1記載の方法を実施するコントローラを具えるデータ圧縮機。 5.請求の範囲1記載の方法を実施する命令のセットを具える、データ圧縮機で 用いられるコンピュータプログラムプロダクト。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98401053 | 1998-04-30 | ||
EP98401053.8 | 1998-04-30 | ||
EP98401721.0 | 1998-07-07 | ||
EP98401721 | 1998-07-07 | ||
PCT/IB1999/000724 WO1999057884A2 (en) | 1998-04-30 | 1999-04-22 | Adaptative data compression |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2002506605A true JP2002506605A (ja) | 2002-02-26 |
JP2002506605A5 JP2002506605A5 (ja) | 2006-08-24 |
Family
ID=26151624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55511499A Ceased JP2002506605A (ja) | 1998-04-30 | 1999-04-22 | データ圧縮 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6731812B2 (ja) |
EP (1) | EP0992155A2 (ja) |
JP (1) | JP2002506605A (ja) |
KR (1) | KR100738239B1 (ja) |
CN (1) | CN1178518C (ja) |
WO (1) | WO1999057884A2 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002209215A (ja) * | 2001-01-09 | 2002-07-26 | Sony Corp | 符号量制御装置及び方法、並びに画像情報変換装置及び方法 |
US7856149B2 (en) | 2002-07-29 | 2010-12-21 | Qualcomm Incorporated | Digital image encoding |
US7558290B1 (en) * | 2005-12-16 | 2009-07-07 | Narus, Inc. | Method and apparatus of data compression for computer networks |
US8428125B2 (en) * | 2006-12-22 | 2013-04-23 | Qualcomm Incorporated | Techniques for content adaptive video frame slicing and non-uniform access unit coding |
EP2059049A1 (en) * | 2007-11-07 | 2009-05-13 | British Telecmmunications public limited campany | Video coding |
CN102917157A (zh) * | 2012-10-19 | 2013-02-06 | 北京快联科技有限公司 | 一种基于人体视觉系统的图片压缩系统及方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1091810A (en) * | 1976-12-16 | 1980-12-16 | Toshio Koga | Predictive codec capable of selecting one of at least three prediction signals in two steps |
EP0444918B1 (en) * | 1990-02-28 | 1996-06-05 | Victor Company Of Japan, Limited | Data compression apparatus |
US5231484A (en) * | 1991-11-08 | 1993-07-27 | International Business Machines Corporation | Motion video compression system with adaptive bit allocation and quantization |
US5440346A (en) * | 1993-06-16 | 1995-08-08 | Intel Corporation | Mode selection for method and system for encoding images |
EP0670663A1 (fr) | 1994-03-02 | 1995-09-06 | Laboratoires D'electronique Philips S.A.S. | Procédé et dispositif de codage de signaux numériques représentatifs d'une séquence d'images |
JP3115199B2 (ja) * | 1994-12-16 | 2000-12-04 | 松下電器産業株式会社 | 画像圧縮符号化装置 |
FR2748623B1 (fr) * | 1996-05-09 | 1998-11-27 | Thomson Multimedia Sa | Encodeur a debit variable |
JP3053576B2 (ja) * | 1996-08-07 | 2000-06-19 | オリンパス光学工業株式会社 | コードイメージデータ出力装置及び出力方法 |
US6115420A (en) * | 1997-03-14 | 2000-09-05 | Microsoft Corporation | Digital video signal encoder and encoding method |
-
1999
- 1999-04-22 JP JP55511499A patent/JP2002506605A/ja not_active Ceased
- 1999-04-22 KR KR1019997012463A patent/KR100738239B1/ko not_active IP Right Cessation
- 1999-04-22 EP EP99913523A patent/EP0992155A2/en not_active Withdrawn
- 1999-04-22 WO PCT/IB1999/000724 patent/WO1999057884A2/en not_active Application Discontinuation
- 1999-04-22 CN CNB99801043XA patent/CN1178518C/zh not_active Expired - Fee Related
- 1999-04-27 US US09/300,698 patent/US6731812B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0992155A2 (en) | 2000-04-12 |
WO1999057884A2 (en) | 1999-11-11 |
KR20010014321A (ko) | 2001-02-26 |
CN1178518C (zh) | 2004-12-01 |
WO1999057884A3 (en) | 2000-01-13 |
US20030043906A1 (en) | 2003-03-06 |
US6731812B2 (en) | 2004-05-04 |
CN1273748A (zh) | 2000-11-15 |
KR100738239B1 (ko) | 2007-07-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3818679B2 (ja) | 一連の画像を表わすディジタル信号を符号化する方法および装置 | |
US6094455A (en) | Image compression/encoding apparatus and system with quantization width control based on bit generation error | |
US5986710A (en) | Image encoding method and apparatus for controlling the number of bits generated using quantization activities | |
JP3864461B2 (ja) | 映像データ圧縮装置およびその方法 | |
US6823008B2 (en) | Video bitrate control method and device for digital video recording | |
US6477211B2 (en) | Transcoding of a data stream | |
WO2002032207A2 (en) | Rate control for bitstream re-encoding | |
US7095784B2 (en) | Method and apparatus for moving picture compression rate control using bit allocation with initial quantization step size estimation at picture level | |
US6879632B1 (en) | Apparatus for and method of variable bit rate video coding | |
JP3907875B2 (ja) | 符号化レート制御装置及び情報符号化装置 | |
US6628709B2 (en) | Bit number prediction for VLC coded DCT coefficients and its application in DV encoding/transcoding | |
US6580755B1 (en) | Apparatus and method for encoding | |
JP4295828B2 (ja) | 領域情報で符号化する方法 | |
JP2002506605A (ja) | データ圧縮 | |
US20010053182A1 (en) | Picture encoding format converting apparatus | |
JPH08130746A (ja) | 係数量子化処理方法 | |
JP3151173B2 (ja) | 画像圧縮符号化装置及び方法 | |
JP3218994B2 (ja) | 画像符号化方法および装置 | |
KR19990065775A (ko) | 비디오 스트림 코딩을 위한 적응적 비트율 제어 방법 | |
JP3425130B2 (ja) | 符号化装置及び符号化方法 | |
JP3779066B2 (ja) | 動画像符号化装置 | |
KR20010104058A (ko) | 동영상 부호화기의 부호화 모드에 따른 적응적 양자화기 | |
EP1944980A2 (en) | Bit rate control algorithm | |
JP4152570B2 (ja) | 動画像符号化装置、動画像符号化方法及び動画像符号化プログラムが記録された記録媒体 | |
EP1493282A1 (en) | Image coding using quantizer scale selection |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060419 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060419 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090407 |
|
A313 | Final decision of rejection without a dissenting response from the applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A313 Effective date: 20090727 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20090901 |