AR080866A1 - Codificador de audio o video, decodificador de audio o video y metodos re-lacionados para procesar senales de audio o video multicanal usando una direccion de prediccion variable - Google Patents

Codificador de audio o video, decodificador de audio o video y metodos re-lacionados para procesar senales de audio o video multicanal usando una direccion de prediccion variable

Info

Publication number
AR080866A1
AR080866A1 ARP110101086A ARP110101086A AR080866A1 AR 080866 A1 AR080866 A1 AR 080866A1 AR P110101086 A ARP110101086 A AR P110101086A AR P110101086 A ARP110101086 A AR P110101086A AR 080866 A1 AR080866 A1 AR 080866A1
Authority
AR
Argentina
Prior art keywords
signal
audio
prediction
video
combination
Prior art date
Application number
ARP110101086A
Other languages
English (en)
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 AR080866A1 publication Critical patent/AR080866A1/es

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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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive 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
    • G10L19/04—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
    • 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
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • 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
    • H04N19/134—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
    • H04N19/156—Availability of hardware or computational resources, e.g. encoding based on power-saving criteria
    • 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)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Stereophonic System (AREA)

Abstract

Un codificador de audio o video y un decodificador de audio o video se basan en una combinacion de dos canales de audio o video (201, 202) a fin de obtener una primera senal de combinacion (204) como una senal media y una senal residual (205) que puede derivarse mediante el uso de una senal lateral predicha derivada de la senal media. La primera senal de combinacion y la senal residual de prediccion se codifican (209) y escriben (212) en un flujo de datos (213) junto con la informacion de prediccion (206) derivada mediante un optimizador (207) en base a un objetivo de optimizacion (208) y un indicador de direccion de prediccion que indica una direccion de prediccion asociada con la senal residual. Un decodificador utiliza la senal residual de prediccion, la primera senal de combinacion, el indicador de direccion de prediccion y la informacion de prediccion para derivar una primera senal de canal decodificada y una segunda senal de canal decodificada. En un ejemplo de codificador o en un ejemplo de decodificador, se puede aplicar una transformada real a imaginaria para estimar la parte imaginaria del espectro de la primera senal de combinacion. Para calcular la senal de prediccion utilizada en la derivacion de la senal residual de prediccion, la primera senal de combinacion con valor real se multiplica por una porcion real de la informacion de prediccion compleja y la parte imaginaria estimada de la primera senal de combinacion se multiplica por una porcion imaginaria de la informacion de prediccion compleja.
ARP110101086A 2010-04-13 2011-03-31 Codificador de audio o video, decodificador de audio o video y metodos re-lacionados para procesar senales de audio o video multicanal usando una direccion de prediccion variable AR080866A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32368310P 2010-04-13 2010-04-13
PCT/EP2011/052354 WO2011128138A1 (en) 2010-04-13 2011-02-17 Audio or video encoder, audio or video decoder and related methods for processing multi-channel audio or video signals using a variable prediction direction

Publications (1)

Publication Number Publication Date
AR080866A1 true AR080866A1 (es) 2012-05-16

Family

ID=44170568

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP110101086A AR080866A1 (es) 2010-04-13 2011-03-31 Codificador de audio o video, decodificador de audio o video y metodos re-lacionados para procesar senales de audio o video multicanal usando una direccion de prediccion variable

Country Status (19)

Country Link
US (9) US9398294B2 (es)
EP (10) EP4254951A3 (es)
JP (1) JP5820464B2 (es)
KR (1) KR101430118B1 (es)
CN (1) CN103052983B (es)
AR (1) AR080866A1 (es)
AU (1) AU2011240239B2 (es)
BR (2) BR112012026324B1 (es)
CA (1) CA2796292C (es)
ES (6) ES2911893T3 (es)
HK (1) HK1183740A1 (es)
MX (1) MX2012011801A (es)
MY (1) MY194835A (es)
PL (6) PL3779975T3 (es)
PT (2) PT2559027T (es)
RU (1) RU2541864C2 (es)
SG (1) SG184537A1 (es)
TW (1) TWI466106B (es)
WO (1) WO2011128138A1 (es)

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