发明授权
US5506686A Method and device for determining bit allocation in a video compression
system
失效
用于确定视频压缩系统中的比特分配的方法和装置
- 专利标题: Method and device for determining bit allocation in a video compression system
- 专利标题(中): 用于确定视频压缩系统中的比特分配的方法和装置
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申请号: US344251申请日: 1994-11-23
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公开(公告)号: US5506686A公开(公告)日: 1996-04-09
- 发明人: Cheung Auyeung , Stephen N. Levine , James J. Kosmach
- 申请人: Cheung Auyeung , Stephen N. Levine , James J. Kosmach
- 申请人地址: IL Schaumburg
- 专利权人: Motorola, Inc.
- 当前专利权人: Motorola, Inc.
- 当前专利权人地址: IL Schaumburg
- 主分类号: G06T9/00
- IPC分类号: G06T9/00 ; H04N7/26 ; H04N7/50 ; H04N1/417 ; H04N7/12
摘要:
The present invention provides a method (100) and device (200) for allocating bits to video pictures in a video compression system. A sequence of video frames or pictures is received, and the number of bits used to compress a previously encoded frame and a signal-to-noise ratio for the immediately previously encoded video frame are determined. Rate distortion model parameters are updated. Then, first, second, and third deviations are determined. Finally, the bit allocation for the frame is determined based on the first number of bits used to compress a previously encoded frame, the first deviation, the second deviation, and the third deviation.