MXPA05012262A - Metodos y aparato para mejorar la calidad de video en multiplexion estadistica. - Google Patents

Metodos y aparato para mejorar la calidad de video en multiplexion estadistica.

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Publication number
MXPA05012262A
MXPA05012262A MXPA05012262A MXPA05012262A MXPA05012262A MX PA05012262 A MXPA05012262 A MX PA05012262A MX PA05012262 A MXPA05012262 A MX PA05012262A MX PA05012262 A MXPA05012262 A MX PA05012262A MX PA05012262 A MXPA05012262 A MX PA05012262A
Authority
MX
Mexico
Prior art keywords
encoding
current frame
channel
video quality
parameter
Prior art date
Application number
MXPA05012262A
Other languages
English (en)
Inventor
Yong He
Original Assignee
Gen Instrument Corp
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 Gen Instrument Corp filed Critical Gen Instrument Corp
Publication of MXPA05012262A publication Critical patent/MXPA05012262A/es

Links

Classifications

    • 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
    • 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
    • H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
    • 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
    • H04N19/115—Selection of the code volume for a coding unit prior to 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
    • H04N19/10—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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
    • 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
    • H04N19/15—Data rate or code amount at the encoder output by monitoring actual compressed data size at the memory before deciding storage at 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
    • H04N19/134—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
    • H04N19/177—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 a group of pictures [GOP]
    • 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
    • H04N19/194—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 involving only two passes

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

La presente invencion proporciona metodos y aparato para mejorar la calidad de video en multiplexion estadistica (50). Para cada canal de codificacion en un multiplexor estadistico (50), se calcula un parametro de necesidad de tasa de bits respectivo para codificar (40) una trama actual. Tambien se calcula un nivel verificador de memoria temporal de video (VBV, 20) disponible a cada canal de codificacion, determinando si la Plenitud de VBV (20) disponible para cada canal de codificacion es suficiente para codificar la trama actual de ese canal con base en un calculo de complejidad inicial para esa trama actual. Escala el parametro por un multiplicador de panico adaptable si la Plenitud de VBV es insuficiente y codifica la trama actual utilizando el parametro escalado.
MXPA05012262A 2003-05-19 2004-05-18 Metodos y aparato para mejorar la calidad de video en multiplexion estadistica. MXPA05012262A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/441,334 US7274739B2 (en) 2003-05-19 2003-05-19 Methods and apparatus for improving video quality in statistical multiplexing
PCT/US2004/015477 WO2004105393A1 (en) 2003-05-19 2004-05-18 Methods and apparatus for improving video quality in statistical multiplexing.

Publications (1)

Publication Number Publication Date
MXPA05012262A true MXPA05012262A (es) 2006-02-10

Family

ID=33449968

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA05012262A MXPA05012262A (es) 2003-05-19 2004-05-18 Metodos y aparato para mejorar la calidad de video en multiplexion estadistica.

Country Status (5)

Country Link
US (1) US7274739B2 (es)
CA (1) CA2524809C (es)
MX (1) MXPA05012262A (es)
TW (1) TW200509681A (es)
WO (1) WO2004105393A1 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2851111B1 (fr) * 2003-02-10 2005-07-22 Nextream France Dispositif de codage d'un flux de donnees video
US20090150926A1 (en) * 2007-12-06 2009-06-11 General Instrument Corporation Method And Apparatus For Delivering SDV Programming With Targeted Advertising To Selected Groups Of Subscribers
WO2010138913A1 (en) * 2009-05-29 2010-12-02 Harmonic, Inc. Systems and methods for video statistical multiplexing adapting to internet protocol networks
US9794562B2 (en) * 2009-12-04 2017-10-17 Arris Enterprises, Inc. Generation and detection of private metadata in an encoded video transport stream
WO2013019517A1 (en) 2011-08-02 2013-02-07 Ciinow, Inc. A method and mechanism for efficiently delivering visual data across a network
US9094684B2 (en) 2011-12-19 2015-07-28 Google Technology Holdings LLC Method for dual pass rate control video encoding
US20140086310A1 (en) * 2012-09-21 2014-03-27 Jason D. Tanner Power efficient encoder architecture during static frame or sub-frame detection
US20140112386A1 (en) * 2012-10-22 2014-04-24 General Instrument Corporation Algorithms for determining bitrate for a statistical multiplexing system to account for signal complexity including film mode and gop structural changes
US8948529B1 (en) 2012-10-30 2015-02-03 Google Inc. Multi-pass encoding
US10097828B2 (en) * 2014-12-11 2018-10-09 Intel Corporation Rate control for parallel video encoding
US10516812B2 (en) 2018-04-02 2019-12-24 Intel Corporation Devices and methods for selective display frame fetch

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5801779A (en) * 1995-12-26 1998-09-01 C-Cube Microsystems, Inc. Rate control with panic mode
US5878166A (en) * 1995-12-26 1999-03-02 C-Cube Microsystems Field frame macroblock encoding decision
US6038256A (en) 1996-12-31 2000-03-14 C-Cube Microsystems Inc. Statistical multiplexed video encoding using pre-encoding a priori statistics and a priori and a posteriori statistics
US6763067B2 (en) * 2000-10-10 2004-07-13 Sarnoff Corporation Rate control for bitstream re-encoding
US6925120B2 (en) * 2001-09-24 2005-08-02 Mitsubishi Electric Research Labs, Inc. Transcoder for scalable multi-layer constant quality video bitstreams

Also Published As

Publication number Publication date
US20040233998A1 (en) 2004-11-25
CA2524809A1 (en) 2004-12-02
WO2004105393A1 (en) 2004-12-02
US7274739B2 (en) 2007-09-25
CA2524809C (en) 2012-06-19
TW200509681A (en) 2005-03-01

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