WO2003015293A3 - Method and apparatus for video communication over a limited bandwidth medium - Google Patents

Method and apparatus for video communication over a limited bandwidth medium Download PDF

Info

Publication number
WO2003015293A3
WO2003015293A3 PCT/US2002/025356 US0225356W WO03015293A3 WO 2003015293 A3 WO2003015293 A3 WO 2003015293A3 US 0225356 W US0225356 W US 0225356W WO 03015293 A3 WO03015293 A3 WO 03015293A3
Authority
WO
WIPO (PCT)
Prior art keywords
frames
limited bandwidth
successive
video communication
communication over
Prior art date
Application number
PCT/US2002/025356
Other languages
French (fr)
Other versions
WO2003015293A2 (en
Inventor
John W Callaci
Original Assignee
Jps International 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
Priority claimed from US09/927,132 external-priority patent/US6700601B1/en
Application filed by Jps International Inc filed Critical Jps International Inc
Priority to BR0211811-4A priority Critical patent/BR0211811A/en
Priority to MXPA04001139A priority patent/MXPA04001139A/en
Priority to AU2002323095A priority patent/AU2002323095B2/en
Priority to JP2003520095A priority patent/JP2005517320A/en
Priority to CA002455501A priority patent/CA2455501A1/en
Priority to KR10-2004-7001995A priority patent/KR20040035727A/en
Priority to EP02757055A priority patent/EP1415402A2/en
Publication of WO2003015293A2 publication Critical patent/WO2003015293A2/en
Publication of WO2003015293A3 publication Critical patent/WO2003015293A3/en

Links

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
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • 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
    • H04N19/50—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
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/537—Motion estimation other than block-based
    • 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
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • 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
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/58—Motion compensation with long-term prediction, i.e. the reference frame for a current frame not being the temporally closest one
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

A method and apparatus for creating intermediate image frame (r403-r407) based on two or more successive captured image frames for transmission over a limited bandwidth medium, such as a telephone line (201). The intermediate image frames (r403-r407) are constructed based on pixel information of portions that did change between two successive frames. The intermediate frames are constructed without the necessity of creating portions of the successive image frames (t401,t402) that did not move or change. The created intermediate frames may be combined with originally captured frames to convey video information to a user.
PCT/US2002/025356 2001-08-10 2002-08-07 Method and apparatus for video communication over a limited bandwidth medium WO2003015293A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BR0211811-4A BR0211811A (en) 2001-08-10 2002-08-07 Method and apparatus for video communication over limited bandwidth
MXPA04001139A MXPA04001139A (en) 2001-08-10 2002-08-07 Method and apparatus for video communication over a limited bandwidth medium.
AU2002323095A AU2002323095B2 (en) 2001-08-10 2002-08-07 Method and apparatus for video communication over a limited bandwidth medium
JP2003520095A JP2005517320A (en) 2001-08-10 2002-08-07 Method and apparatus for video communication over bandwidth limited media
CA002455501A CA2455501A1 (en) 2001-08-10 2002-08-07 Method and apparatus for video communication over a limited bandwidth medium
KR10-2004-7001995A KR20040035727A (en) 2001-08-10 2002-08-07 Method and apparatus for video communication over a limited bandwidth medium
EP02757055A EP1415402A2 (en) 2001-08-10 2002-08-07 Method and apparatus for video communication over a limited bandwidth medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/927,132 2001-08-10
US09/927,132 US6700601B1 (en) 2000-08-10 2001-08-10 Method and apparatus for video communication over a limited bandwidth medium

Publications (2)

Publication Number Publication Date
WO2003015293A2 WO2003015293A2 (en) 2003-02-20
WO2003015293A3 true WO2003015293A3 (en) 2003-12-04

Family

ID=25454237

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/025356 WO2003015293A2 (en) 2001-08-10 2002-08-07 Method and apparatus for video communication over a limited bandwidth medium

Country Status (8)

Country Link
EP (1) EP1415402A2 (en)
JP (1) JP2005517320A (en)
KR (1) KR20040035727A (en)
AU (1) AU2002323095B2 (en)
BR (1) BR0211811A (en)
CA (1) CA2455501A1 (en)
MX (1) MXPA04001139A (en)
WO (1) WO2003015293A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100826355B1 (en) * 2005-10-28 2008-05-02 삼성전기주식회사 Improvement apparatus of image quality in 3 panel type display system using diffraction modulation and method thereof
KR100832631B1 (en) * 2005-10-28 2008-05-27 삼성전기주식회사 Improvement apparatus of image quality in 1 panel type display system using diffraction modulation and method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01272280A (en) * 1988-04-23 1989-10-31 Miyuukomu:Kk Picture data transmitting system and displaying method
JP2001177837A (en) * 1999-12-21 2001-06-29 Matsushita Electric Ind Co Ltd Image transmission system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01272280A (en) * 1988-04-23 1989-10-31 Miyuukomu:Kk Picture data transmitting system and displaying method
JP2001177837A (en) * 1999-12-21 2001-06-29 Matsushita Electric Ind Co Ltd Image transmission system

Also Published As

Publication number Publication date
KR20040035727A (en) 2004-04-29
MXPA04001139A (en) 2005-02-17
AU2002323095B2 (en) 2007-09-13
JP2005517320A (en) 2005-06-09
CA2455501A1 (en) 2003-02-20
WO2003015293A2 (en) 2003-02-20
EP1415402A2 (en) 2004-05-06
BR0211811A (en) 2004-09-08

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