SELECTION OF MOTION VECTOR PRECISION
申请(专利)号： US202416779354
专利号： US2024177887A1 主分类号： H04N19/174
申请日： 2024-01-31 公开公告日： 2024-06-04
分类号： H04N19/174;
申请权利人： 公开国代码： 优先权国家： 摘 要：
MICROSOFT
TECHNOLOGY LICENSING, LLC US US
发明设计人： 申请国代码： 优先权： 摘 要 附 图：
H04N19/513; H04N19/142; H04N19/52; H04N19/105; H04N19/179; H04N19/17; H04N19/177; H04N19/136; H04N19/109; H04N19/147; H04N19/139 GARY J. SULLIVAN;
YOU ZHOU; CHIH-LUNG LIN US
20240131 US
202416779354; 20240524 US 202416422227; 20240109 US 202415865648; 20170828 US 201715688669; 20141013 US 201414513132; 20140131 US 201461934574; 20140108 US 201461925090
Approaches to selection of motion vector (“MV”) precision during video encoding are presented. These approaches can facilitate compression that is effective in terms of rate-distortion performance and/or computational efficiency. For
example, a video encoder determines an MV precision for a unit of video from among multiple MV precisions, which
include one or more fractional-sample MV precisions and integer-sample MV
precision. The video encoder can identify a set of MV values having a fractional-sample MV precision, then select the MV precision for the unit based at least in part on prevalence of MV values (within the set) having a fractional part of zero. Or, the video encoder can perform rate-distortion analysis, where the rate-distortion analysis is biased towards the integer-sample MV precision. Or, the video encoder can collect information about the video and select the MV
precision for the unit based at least in part on the collected information. 主权项：
1.-20. (canceled)/n
权 利 要 求 说 明 书
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SELECTION OF MOTION VECTOR PRECISION
