BRPI0709450A8 - codificação de sinal de informação - Google Patents

codificação de sinal de informação

Info

Publication number
BRPI0709450A8
BRPI0709450A8 BRPI0709450A BRPI0709450A BRPI0709450A8 BR PI0709450 A8 BRPI0709450 A8 BR PI0709450A8 BR PI0709450 A BRPI0709450 A BR PI0709450A BR PI0709450 A BRPI0709450 A BR PI0709450A BR PI0709450 A8 BRPI0709450 A8 BR PI0709450A8
Authority
BR
Brazil
Prior art keywords
information signal
prediction
signal coding
quantizing
prefiltered signal
Prior art date
Application number
BRPI0709450A
Other languages
English (en)
Inventor
Hirschfeld
Ulrich Krämer
Manfred Lutzky
Gerald Schuller
Stefan Wabnik
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of BRPI0709450A2 publication Critical patent/BRPI0709450A2/pt
Publication of BRPI0709450A8 publication Critical patent/BRPI0709450A8/pt
Publication of BRPI0709450B1 publication Critical patent/BRPI0709450B1/pt

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
    • 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
    • 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
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • 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
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

<b>ificaçao de sinal de informaçao <d> quantização muito grosseira que ultrapassa a medida determinada pelo limite de mascaramento, sem ou somente com muito pouca perda de qualidade, é permitida quantizando não imediatamente o sinal pré-filtrado, mas um erro de predição obtido pela predição adaptativa para frente do sinal pré-filtrado. devido à adaptatividade para frente, o erro de quantização não tem efeito negativo na predição no lado do decodificador.
BRPI0709450A 2006-05-12 2007-02-28 codificação de sinal de informação BRPI0709450B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006022346A DE102006022346B4 (de) 2006-05-12 2006-05-12 Informationssignalcodierung
DE1020060223462 2006-05-12
PCT/EP2007/001730 WO2007131564A1 (de) 2006-05-12 2007-02-28 Informationssignalcodierung

Publications (3)

Publication Number Publication Date
BRPI0709450A2 BRPI0709450A2 (pt) 2011-07-12
BRPI0709450A8 true BRPI0709450A8 (pt) 2019-01-08
BRPI0709450B1 BRPI0709450B1 (pt) 2020-02-04

Family

ID=38080073

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0709450A BRPI0709450B1 (pt) 2006-05-12 2007-02-28 codificação de sinal de informação

Country Status (18)

Country Link
US (2) US9754601B2 (pt)
EP (1) EP2022043B1 (pt)
JP (1) JP5297373B2 (pt)
KR (1) KR100986924B1 (pt)
CN (1) CN101443842B (pt)
AT (1) ATE542217T1 (pt)
AU (1) AU2007250308B2 (pt)
BR (1) BRPI0709450B1 (pt)
CA (1) CA2651745C (pt)
DE (1) DE102006022346B4 (pt)
ES (1) ES2380591T3 (pt)
IL (1) IL193784A (pt)
MX (1) MX2008014222A (pt)
MY (1) MY143314A (pt)
NO (1) NO340674B1 (pt)
PL (1) PL2022043T3 (pt)
RU (1) RU2407145C2 (pt)
WO (1) WO2007131564A1 (pt)

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Also Published As

Publication number Publication date
US10446162B2 (en) 2019-10-15
US20180012608A1 (en) 2018-01-11
KR20090007427A (ko) 2009-01-16
US9754601B2 (en) 2017-09-05
ATE542217T1 (de) 2012-02-15
DE102006022346B4 (de) 2008-02-28
CN101443842A (zh) 2009-05-27
CN101443842B (zh) 2012-05-23
PL2022043T3 (pl) 2012-06-29
MX2008014222A (es) 2008-11-14
WO2007131564A1 (de) 2007-11-22
RU2008148961A (ru) 2010-06-20
CA2651745A1 (en) 2007-11-22
DE102006022346A1 (de) 2007-11-15
BRPI0709450B1 (pt) 2020-02-04
US20090254783A1 (en) 2009-10-08
RU2407145C2 (ru) 2010-12-20
JP5297373B2 (ja) 2013-09-25
EP2022043A1 (de) 2009-02-11
KR100986924B1 (ko) 2010-10-08
NO20084786L (no) 2008-12-11
ES2380591T3 (es) 2012-05-16
AU2007250308B2 (en) 2010-05-06
HK1121569A1 (en) 2009-04-24
BRPI0709450A2 (pt) 2011-07-12
JP2009537033A (ja) 2009-10-22
IL193784A (en) 2014-01-30
MY143314A (en) 2011-04-15
AU2007250308A1 (en) 2007-11-22
EP2022043B1 (de) 2012-01-18
NO340674B1 (no) 2017-05-29
CA2651745C (en) 2013-12-24

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