CA2421090A1 - Picture coding device, picture coding method, picture decoding device, picture decoding method, and providing medium - Google Patents

Picture coding device, picture coding method, picture decoding device, picture decoding method, and providing medium Download PDF

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Publication number
CA2421090A1
CA2421090A1 CA002421090A CA2421090A CA2421090A1 CA 2421090 A1 CA2421090 A1 CA 2421090A1 CA 002421090 A CA002421090 A CA 002421090A CA 2421090 A CA2421090 A CA 2421090A CA 2421090 A1 CA2421090 A1 CA 2421090A1
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Canada
Prior art keywords
time
picture
layer
picture coding
picture decoding
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002421090A
Other languages
French (fr)
Other versions
CA2421090C (en
Inventor
Yoichi Yagasaki
Teruhiko Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corporation
Yoichi Yagasaki
Teruhiko Suzuki
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Application filed by Sony Corporation, Yoichi Yagasaki, Teruhiko Suzuki filed Critical Sony Corporation
Priority claimed from CA 2255923 external-priority patent/CA2255923C/en
Publication of CA2421090A1 publication Critical patent/CA2421090A1/en
Application granted granted Critical
Publication of CA2421090C publication Critical patent/CA2421090C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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

Abstract

Efficient random access is made possible. A group of video plane (GOV) layer in which encoding start absolute time within accuracy of a second is arranged is provided as the layer of a coded bit stream. The GOV layer can be inserted not only at the head of the coded bit stream but at an arbitrary position in the coded bit stream. The display time of each video object plane (VOP) constituting the GOV layer is represented by modulo_time_base which represents absolute time in the unit of a second with the encoding start absolute time as standard and VOP_time_increment which represents in the unit of a millisecond the time that has elapsed since time (synchronization point) indicated by the modulo_time_base.
CA002421090A 1997-04-01 1998-03-31 Picture coding device, picture coding method, picture decoding device, picture decoding method, and providing medium Expired - Fee Related CA2421090C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9/99683 1997-04-01
JP9968397 1997-04-01
CA 2255923 CA2255923C (en) 1997-04-01 1998-03-31 Picture coding device, picture coding method, picture decoding device, picture decoding method, and providing medium

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA 2255923 Division CA2255923C (en) 1997-04-01 1998-03-31 Picture coding device, picture coding method, picture decoding device, picture decoding method, and providing medium

Publications (2)

Publication Number Publication Date
CA2421090A1 true CA2421090A1 (en) 1998-10-08
CA2421090C CA2421090C (en) 2005-02-08

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Application Number Title Priority Date Filing Date
CA002421090A Expired - Fee Related CA2421090C (en) 1997-04-01 1998-03-31 Picture coding device, picture coding method, picture decoding device, picture decoding method, and providing medium

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CA (1) CA2421090C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110827380A (en) * 2019-09-19 2020-02-21 北京铂石空间科技有限公司 Image rendering method and device, electronic equipment and computer readable medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110827380A (en) * 2019-09-19 2020-02-21 北京铂石空间科技有限公司 Image rendering method and device, electronic equipment and computer readable medium
CN110827380B (en) * 2019-09-19 2023-10-17 北京铂石空间科技有限公司 Image rendering method and device, electronic equipment and computer readable medium

Also Published As

Publication number Publication date
CA2421090C (en) 2005-02-08

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