ATE411704T1 - Verfahren zum codieren und decodieren bei der erfassung von rauschbehafteten bildern in einem videokonferenzsystem - Google Patents

Verfahren zum codieren und decodieren bei der erfassung von rauschbehafteten bildern in einem videokonferenzsystem

Info

Publication number
ATE411704T1
ATE411704T1 AT04018167T AT04018167T ATE411704T1 AT E411704 T1 ATE411704 T1 AT E411704T1 AT 04018167 T AT04018167 T AT 04018167T AT 04018167 T AT04018167 T AT 04018167T AT E411704 T1 ATE411704 T1 AT E411704T1
Authority
AT
Austria
Prior art keywords
coding
image
macroblock
algorithm
stationary
Prior art date
Application number
AT04018167T
Other languages
English (en)
Inventor
Mohammad A Shah
Michael J Horowitz
Original Assignee
Polycom Inc
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 Polycom Inc filed Critical Polycom Inc
Application granted granted Critical
Publication of ATE411704T1 publication Critical patent/ATE411704T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems
    • 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
    • H04N19/102—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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • 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
    • 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
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame 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
    • H04N19/169—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
    • H04N19/176—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 block, e.g. a macroblock
    • 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
    • H04N19/196—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 being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • 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
    • H04N19/196—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 being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • H04N19/197—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 being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters including determination of the initial value of an encoding parameter
    • 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
    • H04N19/196—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 being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • H04N19/198—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 being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters including smoothing of a sequence of encoding parameters, e.g. by averaging, by choice of the maximum, minimum or median value
    • 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
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/507—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction using conditional replenishment
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
AT04018167T 2003-08-01 2004-07-30 Verfahren zum codieren und decodieren bei der erfassung von rauschbehafteten bildern in einem videokonferenzsystem ATE411704T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/633,137 US7782940B2 (en) 2003-08-01 2003-08-01 Methods for encoding or decoding in a videoconference system to reduce problems associated with noisy image acquisition

Publications (1)

Publication Number Publication Date
ATE411704T1 true ATE411704T1 (de) 2008-10-15

Family

ID=33541558

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04018167T ATE411704T1 (de) 2003-08-01 2004-07-30 Verfahren zum codieren und decodieren bei der erfassung von rauschbehafteten bildern in einem videokonferenzsystem

Country Status (5)

Country Link
US (1) US7782940B2 (de)
EP (1) EP1503596B1 (de)
JP (1) JP2005057761A (de)
AT (1) ATE411704T1 (de)
DE (1) DE602004017089D1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1872590B1 (de) 2005-04-19 2014-10-22 Telecom Italia S.p.A. Verfahren und vorrichtung zur digitalen bildcodierung
US7692682B2 (en) 2005-04-28 2010-04-06 Apple Inc. Video encoding in a video conference
WO2006116659A2 (en) * 2005-04-28 2006-11-02 Apple Computer, Inc. Video processing in a multi-participant video conference
US20070230804A1 (en) 2006-03-31 2007-10-04 Aldrich Bradley C Encoding techniques employing noise-based adaptation
US8593504B2 (en) * 2011-02-11 2013-11-26 Avaya Inc. Changing bandwidth usage based on user events
WO2013056129A1 (en) * 2011-10-14 2013-04-18 Advanced Micro Devices, Inc. Region-based image compression
CN102595164A (zh) * 2012-02-27 2012-07-18 中兴通讯股份有限公司 一种视频图像发送方法、装置及系统
WO2014209296A1 (en) * 2013-06-26 2014-12-31 Intel Corporation Power efficient encoder architecture during static frame or sub-frame detection
TWI472231B (zh) * 2013-11-27 2015-02-01 Ind Tech Res Inst 用於移動估計的視訊前處理方法與裝置
US10516812B2 (en) 2018-04-02 2019-12-24 Intel Corporation Devices and methods for selective display frame fetch
EP3832591B1 (de) * 2019-12-03 2022-06-08 Axis AB Codierung einer videosequenz
US12027117B2 (en) * 2020-09-25 2024-07-02 Apple Inc. Pixel screening and repair

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5155594A (en) * 1990-05-11 1992-10-13 Picturetel Corporation Hierarchical encoding method and apparatus employing background references for efficiently communicating image sequences
US5231484A (en) * 1991-11-08 1993-07-27 International Business Machines Corporation Motion video compression system with adaptive bit allocation and quantization
US6400996B1 (en) * 1999-02-01 2002-06-04 Steven M. Hoffberg Adaptive pattern recognition based control system and method
US5737537A (en) * 1995-09-29 1998-04-07 Intel Corporation Two-measure block classification scheme for encoding video images
JP3790804B2 (ja) * 1996-04-19 2006-06-28 ノキア コーポレイション 動きに基づく分割及び合併を用いたビデオ・エンコーダ及びデコーダ
US5796434A (en) * 1996-06-07 1998-08-18 Lsi Logic Corporation System and method for performing motion estimation in the DCT domain with improved efficiency
US6292589B1 (en) * 1996-06-21 2001-09-18 Compaq Computer Corporation Method for choosing rate control parameters in motion-compensated transform-based picture coding scheme using non-parametric technique
US5805228A (en) * 1996-08-09 1998-09-08 U.S. Robotics Access Corp. Video encoder/decoder system
US5926226A (en) * 1996-08-09 1999-07-20 U.S. Robotics Access Corp. Method for adjusting the quality of a video coder
US6269078B1 (en) * 1997-04-04 2001-07-31 T. V. Lakshman Method and apparatus for supporting compressed video with explicit rate congestion control
US6173069B1 (en) * 1998-01-09 2001-01-09 Sharp Laboratories Of America, Inc. Method for adapting quantization in video coding using face detection and visual eccentricity weighting
US6275527B1 (en) * 1998-01-14 2001-08-14 Conexant Systems, Inc. Pre-quantization in motion compensated video coding
US6360017B1 (en) * 1998-03-05 2002-03-19 Lucent Technologies Inc. Perceptual-based spatio-temporal segmentation for motion estimation
US6327392B1 (en) * 1999-01-28 2001-12-04 Sharp Laboratories Of America, Inc. Method of visual progressive coding
JP4427827B2 (ja) * 1998-07-15 2010-03-10 ソニー株式会社 データ処理方法、データ処理装置及び記録媒体
US6192148B1 (en) * 1998-11-05 2001-02-20 Winbond Electronics Corp. Method for determining to skip macroblocks in encoding video
US6618507B1 (en) * 1999-01-25 2003-09-09 Mitsubishi Electric Research Laboratories, Inc Methods of feature extraction of video sequences
US6483876B1 (en) * 1999-12-28 2002-11-19 Sony Corporation Methods and apparatus for reduction of prediction modes in motion estimation
US6842483B1 (en) * 2000-09-11 2005-01-11 The Hong Kong University Of Science And Technology Device, method and digital video encoder for block-matching motion estimation
US6995805B1 (en) * 2000-09-29 2006-02-07 Sonic Solutions Method and system for scene change detection
US7437009B2 (en) 2002-01-16 2008-10-14 Matsushita Electric Industrial Co., Ltd. Image coding apparatus, image coding method, and image coding program for coding at least one still frame with still frame coding having a higher quality than normal frame coding of other frames

Also Published As

Publication number Publication date
US7782940B2 (en) 2010-08-24
EP1503596A2 (de) 2005-02-02
DE602004017089D1 (de) 2008-11-27
EP1503596A3 (de) 2005-11-23
US20050025369A1 (en) 2005-02-03
EP1503596B1 (de) 2008-10-15
JP2005057761A (ja) 2005-03-03
HK1073550A1 (en) 2005-10-07

Similar Documents

Publication Publication Date Title
US12262043B2 (en) Content adaptive deblocking during video encoding and decoding
CN108141603B (zh) 视频编解码方法及视频编解码器
KR101045199B1 (ko) 화소 데이터의 적응형 잡음 필터링을 위한 방법 및 장치
US8279923B2 (en) Video coding method and video coding apparatus
US7450641B2 (en) Adaptive filtering based upon boundary strength
CN101543074A (zh) 去块滤波装置和方法
Karczewicz et al. Geometry transformation-based adaptive in-loop filter
US20150016516A1 (en) Method for intra prediction improvements for oblique modes in video coding
US20140211858A1 (en) Spatially adaptive video coding
EP1909505A3 (de) Bewegungskompensationsverfahren, Verfahren zur Bildkodierung und Verfahren zur Bilddekodierung
ATE411704T1 (de) Verfahren zum codieren und decodieren bei der erfassung von rauschbehafteten bildern in einem videokonferenzsystem
MX2025000991A (es) Un codificador, un decodificador y metodos correspondientes de derivacion de intra modo de crominancia
CN105409216A (zh) 丢失视频数据的条件隐藏
TW201325240A (zh) 用於視訊寫碼之框內脈碼調變（ｉｐｃｍ）及無損失的寫碼模式解塊
EP1515564A3 (de) Vorrichtungen und Verfahren zur adaptieven Filtrierung von DCT Koeffizienten in einem Videocodierer
CN108028937A (zh) 视频运动补偿装置和方法
EP4607929A3 (de) Codierer, decodierer und zugehörige verfahren zur verwendung für transformationsverfahren
EP4546778A3 (de) Zusammengesetzte bewegungskompensierte vorhersage
JP5295089B2 (ja) 画像符号化装置
US20080025408A1 (en) Video encoding
US12375660B2 (en) Techniques for contouring/banding artifact removal in compressed image/video
Park Optimal QP Determination Method for Adaptive Intra Frame Encoding
Kulupana et al. A model based error resilience scheme for HDR video transmission over error prone channels
KR100464000B1 (ko) 비디오 코더의 블록화 현상 제거 방법
Agarwal et al. A color video compression technique using key frames and a low complexity color transfer

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties