发明名称 |
METHOD AND APPARATUS FOR DETERMINING A BIT RATE NEED PARAMETER IN A STATISTICAL MULTIPLEXER |
摘要 |
<p>A statistical multiplexer for coding and multiplexing multiple channels of digital television data, or multiple panels of HDTV digital television data. A bit rate need parameter is determined for each encoder in a stat mux group by scaling the complexities of previous pictures of the same and different picture types. Scaling factors based on an activity level, motion estimation score, and number of pictures of a certain type in a GOP, may be used. Moreover, the scaling factors may be bounded based on a linear or non-linear operator to prevent large variations in the factors. An encoding bit rate is allocated to each channel based on its need parameter.</p> |
申请公布号 |
CA2321015(A1) |
申请公布日期 |
2002.03.27 |
申请号 |
CA20002321015 |
申请日期 |
2000.09.27 |
申请人 |
GENERAL INSTRUMENT CORPORATION |
发明人 |
CHEN, JING YANG;WU, SIU-WAI;NEMIROFF, ROBERT S.;CASTELOES, MICHAEL;LIU, VINCENT;LAM, REBECCA;ON, HANSON |
分类号 |
H04J3/16;H04N7/58;H04N19/61;(IPC1-7):H04N7/08;H04N7/015 |
主分类号 |
H04J3/16 |
代理机构 |
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地址 |
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