Invention Grant
- Patent Title: Spatiotemporal prediction for bidirectionally predictive (B) pictures and motion vector prediction for multi-picture reference motion compensation
- Patent Title (中): 用于双向参考运动补偿的双向预测(B)图像和运动矢量预测的时空预测
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Application No.: US14502529Application Date: 2014-09-30
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Publication No.: US09185427B2Publication Date: 2015-11-10
- Inventor: Alexandros Tourapis , Shipeng Li , Feng Wu
- Applicant: Microsoft Technology Licensing, LLC
- Applicant Address: US WA Redmond
- Assignee: Microsoft Technology Licensing, LLC
- Current Assignee: Microsoft Technology Licensing, LLC
- Current Assignee Address: US WA Redmond
- Agent Judy Yee; Micky Minhas
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N11/02 ; H04N11/04 ; H04N19/56 ; H04N19/105 ; H04N19/176 ; H04N19/51 ; H04N19/102 ; H04N19/61 ; H04N19/593 ; H04N19/137 ; H04N19/142 ; H04N19/573 ; H04N19/577 ; H04N19/513

Abstract:
Several improvements for use with Bidirectionally Predictive (B) pictures within a video sequence are provided. In certain improvements Direct Mode encoding and/or Motion Vector Prediction are enhanced using spatial prediction techniques. In other improvements Motion Vector prediction includes temporal distance and subblock information, for example, for more accurate prediction. Such improvements and other presented herein significantly improve the performance of any applicable video coding system/logic.
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