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DCC
1998
IEEE

A Locally Optimal Design Algorithm for Block-Based Multi-Hypothesis Motion-Compensated Prediction

9 years 2 months ago
A Locally Optimal Design Algorithm for Block-Based Multi-Hypothesis Motion-Compensated Prediction
Multi-hypothesis motion-compensated prediction extends traditional motion-compensated prediction used in video coding schemes. Known algorithms for block-based multi-hypothesis motion-compensated prediction are, for example, overlapped block motion compensation OBMC and bidirectionallypredicted frames B-frames. This paper presents a generalization of these algorithms in a rate-distortion framework. All blocks which are available for prediction are called hypotheses. Further, we explicitly distinguish between the search space and the superposition of hypotheses. Hypotheses are selected from a search space and their spatio-temporal positions are transmitted by means of spatiotemporal displacement codewords. Constant predictor coe cients are used to combine linearly hypotheses of a multi-hypothesis. The presented design algorithm provides an estimation criterion for optimal multi-hypotheses, a rule for optimal displacement codes, and a condition for optimal predictor coe cients. Statisti...
Markus Flierl, Thomas Wiegand, Bernd Girod
Added 04 Aug 2010
Updated 04 Aug 2010
Type Conference
Year 1998
Where DCC
Authors Markus Flierl, Thomas Wiegand, Bernd Girod
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