DE602008005628D1 - Bitzählwertbestimmung zur iterativen signalcodierung - Google Patents
Bitzählwertbestimmung zur iterativen signalcodierungInfo
- Publication number
- DE602008005628D1 DE602008005628D1 DE602008005628T DE602008005628T DE602008005628D1 DE 602008005628 D1 DE602008005628 D1 DE 602008005628D1 DE 602008005628 T DE602008005628 T DE 602008005628T DE 602008005628 T DE602008005628 T DE 602008005628T DE 602008005628 D1 DE602008005628 D1 DE 602008005628D1
- Authority
- DE
- Germany
- Prior art keywords
- bit rate
- rate determination
- signal coding
- iterative signal
- output bit
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/032—Quantisation or dequantisation of spectral components
- G10L19/035—Scalar quantisation
-
- 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
-
- 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
- H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
-
- 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
-
- 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
- H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
-
- 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
- H04N19/90—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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/002—Dynamic bit allocation
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0720861A GB2454168A (en) | 2007-10-24 | 2007-10-24 | Estimating the number of bits required to compress a plurality of samples using a given quantisation parameter by calculating logarithms of quantised samples |
PCT/GB2008/050805 WO2009053728A1 (en) | 2007-10-24 | 2008-09-09 | Bitcount determination for iterative signal coding |
Publications (1)
Publication Number | Publication Date |
---|---|
DE602008005628D1 true DE602008005628D1 (de) | 2011-04-28 |
Family
ID=38829861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE602008005628T Active DE602008005628D1 (de) | 2007-10-24 | 2008-09-09 | Bitzählwertbestimmung zur iterativen signalcodierung |
Country Status (7)
Country | Link |
---|---|
US (1) | US8217811B2 (de) |
EP (1) | EP2201690B1 (de) |
JP (1) | JP2011504667A (de) |
AT (1) | ATE502442T1 (de) |
DE (1) | DE602008005628D1 (de) |
GB (1) | GB2454168A (de) |
WO (1) | WO2009053728A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8204744B2 (en) * | 2008-12-01 | 2012-06-19 | Research In Motion Limited | Optimization of MP3 audio encoding by scale factors and global quantization step size |
KR101854469B1 (ko) * | 2011-11-30 | 2018-05-04 | 삼성전자주식회사 | 오디오 컨텐츠의 비트레이트 판단장치 및 방법 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4455649A (en) * | 1982-01-15 | 1984-06-19 | International Business Machines Corporation | Method and apparatus for efficient statistical multiplexing of voice and data signals |
US6037985A (en) * | 1996-10-31 | 2000-03-14 | Texas Instruments Incorporated | Video compression |
US6668015B1 (en) * | 1996-12-18 | 2003-12-23 | Thomson Licensing S.A. | Efficient fixed-length block compression and decompression |
JPH1188698A (ja) * | 1997-09-02 | 1999-03-30 | Mitsubishi Electric Corp | 符号量制御方法 |
JP3356663B2 (ja) | 1997-10-22 | 2002-12-16 | 松下電器産業株式会社 | 画像符号化装置、画像符号化方法および画像符号化プログラムを記録した記録媒体 |
GB2346282B (en) * | 1999-01-28 | 2003-02-19 | Snell & Wilcox Ltd | Bit rate control in compression encoding |
US6639942B1 (en) * | 1999-10-21 | 2003-10-28 | Toshiba America Electronic Components, Inc. | Method and apparatus for estimating and controlling the number of bits |
US6601032B1 (en) * | 2000-06-14 | 2003-07-29 | Intervideo, Inc. | Fast code length search method for MPEG audio encoding |
US6847656B1 (en) * | 2000-09-25 | 2005-01-25 | General Instrument Corporation | Statistical remultiplexing with bandwidth allocation among different transcoding channels |
US6628709B2 (en) | 2000-12-21 | 2003-09-30 | Matsushita Electric Corporation Of America | Bit number prediction for VLC coded DCT coefficients and its application in DV encoding/transcoding |
US6732071B2 (en) * | 2001-09-27 | 2004-05-04 | Intel Corporation | Method, apparatus, and system for efficient rate control in audio encoding |
US7027982B2 (en) * | 2001-12-14 | 2006-04-11 | Microsoft Corporation | Quality and rate control strategy for digital audio |
US20060176953A1 (en) | 2005-02-04 | 2006-08-10 | Nader Mohsenian | Method and system for video encoding with rate control |
JP4828925B2 (ja) * | 2005-11-30 | 2011-11-30 | パナソニック株式会社 | 符号化装置 |
JP2007166039A (ja) * | 2005-12-09 | 2007-06-28 | Matsushita Electric Ind Co Ltd | 画像符号化装置 |
JP4823001B2 (ja) * | 2006-09-27 | 2011-11-24 | 富士通セミコンダクター株式会社 | オーディオ符号化装置 |
-
2007
- 2007-10-24 GB GB0720861A patent/GB2454168A/en not_active Withdrawn
-
2008
- 2008-09-09 DE DE602008005628T patent/DE602008005628D1/de active Active
- 2008-09-09 WO PCT/GB2008/050805 patent/WO2009053728A1/en active Application Filing
- 2008-09-09 AT AT08788774T patent/ATE502442T1/de not_active IP Right Cessation
- 2008-09-09 US US12/679,719 patent/US8217811B2/en not_active Expired - Fee Related
- 2008-09-09 JP JP2010530557A patent/JP2011504667A/ja active Pending
- 2008-09-09 EP EP08788774A patent/EP2201690B1/de not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
GB0720861D0 (en) | 2007-12-05 |
EP2201690A1 (de) | 2010-06-30 |
JP2011504667A (ja) | 2011-02-10 |
ATE502442T1 (de) | 2011-04-15 |
EP2201690B1 (de) | 2011-03-16 |
GB2454168A (en) | 2009-05-06 |
US8217811B2 (en) | 2012-07-10 |
US20100201549A1 (en) | 2010-08-12 |
WO2009053728A1 (en) | 2009-04-30 |
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