WO2004056123A8 - Quality based signal processing - Google Patents

Quality based signal processing

Info

Publication number
WO2004056123A8
WO2004056123A8 PCT/GB2003/005249 GB0305249W WO2004056123A8 WO 2004056123 A8 WO2004056123 A8 WO 2004056123A8 GB 0305249 W GB0305249 W GB 0305249W WO 2004056123 A8 WO2004056123 A8 WO 2004056123A8
Authority
WO
WIPO (PCT)
Prior art keywords
signal
quality
signal processing
encoded
buffer
Prior art date
Application number
PCT/GB2003/005249
Other languages
French (fr)
Other versions
WO2004056123A1 (en
Inventor
David Sneddon Hands
Original Assignee
British Telecomm
David Sneddon Hands
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 British Telecomm, David Sneddon Hands filed Critical British Telecomm
Priority to AU2003285577A priority Critical patent/AU2003285577A1/en
Publication of WO2004056123A1 publication Critical patent/WO2004056123A1/en
Publication of WO2004056123A8 publication Critical patent/WO2004056123A8/en

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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • 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
    • H04N19/134—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
    • H04N19/147—Data rate or code amount at the encoder output according to rate distortion 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
    • H04N19/10—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
    • H04N19/134—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
    • H04N19/169—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
    • H04N19/17—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 an image region, e.g. an object
    • H04N19/172—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 an image region, e.g. an object the region being a picture, frame or field
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/587—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal sub-sampling or interpolation, e.g. decimation or subsequent interpolation of pictures in a video sequence
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • 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
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
    • H04N21/26216—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints involving the channel capacity, e.g. network bandwidth
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/637—Control signals issued by the client directed to the server or network components
    • H04N21/6373—Control signals issued by the client directed to the server or network components for rate control, e.g. request to the server to modify its transmission rate
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/637—Control signals issued by the client directed to the server or network components
    • H04N21/6377—Control signals issued by the client directed to the server or network components directed to server

Abstract

A signal is generated at a predetermined encoding rate by an encoder (11), and the encoded signalis stored in a buffer (12). Measurement is made of the quality of the signal stored in the buffer, to determine whether a different encoding rate, for example using more or less data compression, would be appropriate. If the quality of the buffered signal falls within a predefined range, a control unit (14) causes the buffered signal (12) to be transmitted, but if it falls outside that range the signal is re-encoded at a different rate. This allows bandwidth to be allocated dynamically according to the demands of the signals being transmitted.
PCT/GB2003/005249 2002-12-17 2003-12-02 Quality based signal processing WO2004056123A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003285577A AU2003285577A1 (en) 2002-12-17 2003-12-02 Quality based signal processing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0229396.7 2002-12-17
GB0229396A GB0229396D0 (en) 2002-12-17 2002-12-17 Signal processing

Publications (2)

Publication Number Publication Date
WO2004056123A1 WO2004056123A1 (en) 2004-07-01
WO2004056123A8 true WO2004056123A8 (en) 2004-08-05

Family

ID=9949846

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/005249 WO2004056123A1 (en) 2002-12-17 2003-12-02 Quality based signal processing

Country Status (3)

Country Link
AU (1) AU2003285577A1 (en)
GB (1) GB0229396D0 (en)
WO (1) WO2004056123A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150382232A1 (en) * 2013-08-30 2015-12-31 Neuronet Inc. Controlling apparatus for communication-quality measuring, communication apparatus, and program

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8102878B2 (en) 2005-09-29 2012-01-24 Qualcomm Incorporated Video packet shaping for video telephony
US8842555B2 (en) 2005-10-21 2014-09-23 Qualcomm Incorporated Methods and systems for adaptive encoding of real-time information in packet-switched wireless communication systems
US8514711B2 (en) 2005-10-21 2013-08-20 Qualcomm Incorporated Reverse link lower layer assisted video error control
US8548048B2 (en) 2005-10-27 2013-10-01 Qualcomm Incorporated Video source rate control for video telephony
US8406309B2 (en) 2005-10-21 2013-03-26 Qualcomm Incorporated Video rate adaptation to reverse link conditions
US8537197B2 (en) 2007-01-10 2013-09-17 Qualcomm Incorporated Content- and link-dependent coding adaptation for multimedia telephony
US8797850B2 (en) 2008-01-10 2014-08-05 Qualcomm Incorporated System and method to adapt to network congestion

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5845088A (en) * 1992-11-16 1998-12-01 Multimedia Systems Corporation Method for the production and transmission of enhanced interactive multimedia information
JP3442111B2 (en) * 1993-09-14 2003-09-02 株式会社ソニー・コンピュータエンタテインメント Image compression device, image reproduction device and drawing device
WO1997037322A1 (en) * 1996-03-29 1997-10-09 Sarnoff Corporation Apparatus and method for optimizing encoding and performing automated steerable image compression using a perceptual metric
US6154489A (en) * 1998-03-30 2000-11-28 Motorola, Inc. Adaptive-rate coded digital image transmission
FR2782879B1 (en) * 1998-08-28 2000-11-03 Thomson Multimedia Sa IMAGE COMPRESSION PROCESS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150382232A1 (en) * 2013-08-30 2015-12-31 Neuronet Inc. Controlling apparatus for communication-quality measuring, communication apparatus, and program
US9930565B2 (en) * 2013-08-30 2018-03-27 Neuronet Inc. Controlling apparatus for communication-quality measuring, communication apparatus, and program

Also Published As

Publication number Publication date
WO2004056123A1 (en) 2004-07-01
GB0229396D0 (en) 2003-01-22
AU2003285577A1 (en) 2004-07-09
AU2003285577A8 (en) 2004-07-09

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