发明名称 |
METHOD AND APPARATUS FOR VARIABLE ACCURACY INTER-PICTURE TIMING SPECIFICATION FOR DIGITAL VIDEO ENCODING |
摘要 |
A method and apparatus for variable accuracy inter-picture timing specification for digital video encoding is disclosed. Specifically the present invention discloses a system that allows the relative timing of nearby video pictures to be encoded in a very efficient manner. In one embodiment, the display time difference between a current video picture (105) and a nearby video picture is determined. The display time difference is then encoded (180) into a digital representation of the video picture. In a preferred embodiment, the nearby video picture is the most recently transmitted stored picture. For coding efficiency, the display time difference may be encoded using a variable length coding system or arithmetic coding. In an alternate embodiment, the display time difference is encoded as a power of two to reduce the number of bits transmitted. |
申请公布号 |
EP1532746(A1) |
申请公布日期 |
2005.05.25 |
申请号 |
EP20030764499 |
申请日期 |
2003.07.11 |
申请人 |
APPLE COMPUTER, INC. |
发明人 |
HASKELL, BARIN, G.;SINGER, DAVID, W.;DUMITRAS, ADRIANA;PURI, ATUL |
分类号 |
G06T9/00;H03M7/30;H04B1/66;H04N7/26;H04N7/36;H04N7/46;H04N7/50 |
主分类号 |
G06T9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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