ATE502442T1 - Bitzählwertbestimmung zur iterativen signalcodierung - Google Patents

Bitzählwertbestimmung zur iterativen signalcodierung

Info

Publication number
ATE502442T1
ATE502442T1 AT08788774T AT08788774T ATE502442T1 AT E502442 T1 ATE502442 T1 AT E502442T1 AT 08788774 T AT08788774 T AT 08788774T AT 08788774 T AT08788774 T AT 08788774T AT E502442 T1 ATE502442 T1 AT E502442T1
Authority
AT
Austria
Prior art keywords
bit count
count value
value determination
signal coding
iterative signal
Prior art date
Application number
AT08788774T
Other languages
English (en)
Inventor
David Hargreaves
Esfandiar Zavarehei
Original Assignee
Cambridge Silicon Radio Ltd
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
Application filed by Cambridge Silicon Radio Ltd filed Critical Cambridge Silicon Radio Ltd
Application granted granted Critical
Publication of ATE502442T1 publication Critical patent/ATE502442T1/de

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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 TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Detection And Correction Of Errors (AREA)
  • Dc Digital Transmission (AREA)
AT08788774T 2007-10-24 2008-09-09 Bitzählwertbestimmung zur iterativen signalcodierung ATE502442T1 (de)

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
ATE502442T1 true ATE502442T1 (de) 2011-04-15

Family

ID=38829861

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08788774T ATE502442T1 (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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
GB2454168A (en) 2009-05-06
US8217811B2 (en) 2012-07-10
GB0720861D0 (en) 2007-12-05
DE602008005628D1 (de) 2011-04-28
WO2009053728A1 (en) 2009-04-30
JP2011504667A (ja) 2011-02-10
EP2201690B1 (de) 2011-03-16
EP2201690A1 (de) 2010-06-30
US20100201549A1 (en) 2010-08-12

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