BR9813605A - Processo e aparelho para executar limpezas em fluxos de bits de vìdeo mpeg comprimidos - Google Patents

Processo e aparelho para executar limpezas em fluxos de bits de vìdeo mpeg comprimidos

Info

Publication number
BR9813605A
BR9813605A BR9813605-4A BR9813605A BR9813605A BR 9813605 A BR9813605 A BR 9813605A BR 9813605 A BR9813605 A BR 9813605A BR 9813605 A BR9813605 A BR 9813605A
Authority
BR
Brazil
Prior art keywords
bit streams
streams
compressed
added
video
Prior art date
Application number
BR9813605-4A
Other languages
English (en)
Inventor
Ronald Kolczynski
Original Assignee
Thomson Licensing Sa
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 Thomson Licensing Sa filed Critical Thomson Licensing Sa
Publication of BR9813605A publication Critical patent/BR9813605A/pt

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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/265—Mixing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/007—Transform coding, e.g. discrete cosine transform
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007—Time or data compression or expansion
    • G11B2020/00072—Time or data compression or expansion the compressed signal including a video signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Discrete Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Studio Circuits (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Processing (AREA)

Abstract

"PROCESSO E APARELHO PARA EXECUTAR LIMPEZAS EM FLUXOS DE BITS DE VìDEO MPEG COMPRIMIDOS" trata-se de um método e aparelho para produzir uma seq³ência de limpeza em um dispositivo de exibição a partir dos fluxos de bits de vídeo compactados que chegam que realiza o processamento da função de limpeza totalmente no domínio compactado dos fluxos de bits de vídeo compactados. Os fluxos de bits ou seq³ências vídeo antigos e novos separadamente suportam uma convolução bidimensional entre seus coeficientes DCT codificados e coeficientes DCT armazenados de uma função de limpeza conhecida particular. Cada fluxo de bits convolucionado é colocado em buffer com sua escala de quantização e então somados um com o outro. Os fluxos de bits de saída somados são utilizados por um multiplexador junto com cada dado de macrobloco decodificado do fluxo de bits para proporcionar um fluxo de bits de saída unido. Um controlador controla o processo tal como a correlação de quadro para a convolução e a multiplexação de saída dos fluxos de bits somados.
BR9813605-4A 1997-12-19 1998-12-17 Processo e aparelho para executar limpezas em fluxos de bits de vìdeo mpeg comprimidos BR9813605A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/994,079 US6100930A (en) 1997-12-19 1997-12-19 Process and apparatus for performing wipes on compressed MPEG video bitstreams
PCT/US1998/026860 WO1999033262A1 (en) 1997-12-19 1998-12-17 Process and apparatus for performing wipes on compressed mpeg video bitstreams

Publications (1)

Publication Number Publication Date
BR9813605A true BR9813605A (pt) 2000-10-10

Family

ID=25540263

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9813605-4A BR9813605A (pt) 1997-12-19 1998-12-17 Processo e aparelho para executar limpezas em fluxos de bits de vìdeo mpeg comprimidos

Country Status (7)

Country Link
US (1) US6100930A (pt)
JP (1) JP4197092B2 (pt)
KR (1) KR100564838B1 (pt)
CN (1) CN1144452C (pt)
AU (1) AU2001499A (pt)
BR (1) BR9813605A (pt)
WO (1) WO1999033262A1 (pt)

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US8526971B2 (en) * 1996-08-15 2013-09-03 Snaptrack, Inc. Method and apparatus for providing position-related information to mobile recipients
US6735253B1 (en) 1997-05-16 2004-05-11 The Trustees Of Columbia University In The City Of New York Methods and architecture for indexing and editing compressed video over the world wide web
US7143434B1 (en) 1998-11-06 2006-11-28 Seungyup Paek Video description system and method
JP2000151974A (ja) * 1998-11-11 2000-05-30 Sony Corp 信号編集装置、信号編集方法
EP1236350B1 (en) * 1999-11-10 2004-08-11 Thomson Licensing S.A. Digital video recording with full screen sub-picture and associated transparency control data recording for effecting fading between successive video segments at reproduction
AU2002351310A1 (en) 2001-12-06 2003-06-23 The Trustees Of Columbia University In The City Of New York System and method for extracting text captions from video and generating video summaries
WO2006096612A2 (en) 2005-03-04 2006-09-14 The Trustees Of Columbia University In The City Of New York System and method for motion estimation and mode decision for low-complexity h.264 decoder
US20070044123A1 (en) * 2005-08-16 2007-02-22 Alcatel System and method for smoothing channel changing in internet protocol television systems
WO2009126785A2 (en) 2008-04-10 2009-10-15 The Trustees Of Columbia University In The City Of New York Systems and methods for image archaeology
WO2009155281A1 (en) 2008-06-17 2009-12-23 The Trustees Of Columbia University In The City Of New York System and method for dynamically and interactively searching media data
US8671069B2 (en) 2008-12-22 2014-03-11 The Trustees Of Columbia University, In The City Of New York Rapid image annotation via brain state decoding and visual pattern mining
KR101041687B1 (ko) * 2008-12-26 2011-06-14 경북대학교 산학협력단 심전도 신호의 세그먼트 압축 및 복원 방법
CN103493501A (zh) * 2011-08-09 2014-01-01 华为技术有限公司 网络电视切台时画面显示效果的实现方法及装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0216881A (ja) * 1988-07-05 1990-01-19 Sony Corp スーパーインポーズ装置
SG42859A1 (en) * 1991-07-18 1997-10-17 Ibm System and method for combining multiple composite video signals
US5477276A (en) * 1992-12-17 1995-12-19 Sony Corporation Digital signal processing apparatus for achieving fade-in and fade-out effects on digital video signals
GB9307894D0 (en) * 1993-04-16 1993-06-02 Avid Technology Inc Multichannel digital image compression and processing
JP3301679B2 (ja) * 1994-12-07 2002-07-15 松下電器産業株式会社 映像合成回路
US5909539A (en) * 1995-09-20 1999-06-01 Casio Computer Co., Ltd. Image generating system and method
KR100219133B1 (ko) * 1996-01-06 1999-09-01 윤종용 변환부호화시스템의 변환계수선택방법및그장치

Also Published As

Publication number Publication date
KR100564838B1 (ko) 2006-03-30
JP4197092B2 (ja) 2008-12-17
WO1999033262A1 (en) 1999-07-01
US6100930A (en) 2000-08-08
JP2001527345A (ja) 2001-12-25
CN1281615A (zh) 2001-01-24
AU2001499A (en) 1999-07-12
KR20010032768A (ko) 2001-04-25
CN1144452C (zh) 2004-03-31

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM O ART. 8O COMBINADO COM ART. 13 DA LPI.

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.