From Event: SPIE Optical Engineering + Applications, 2016
The new state-of-the-art video coding standard, H.265/HEVC, has been finalized in 2013 and it achieves roughly 50%
bit rate saving compared to its predecessor, H.264/MPEG-4 AVC. In this paper, two additional merge candidates,
advanced temporal motion vector predictor and spatial-temporal motion vector predictor, are developed to improve
motion information prediction scheme under the HEVC structure. The proposed method allows each Prediction Unit
(PU) to fetch multiple sets of motion information from multiple blocks smaller than the current PU. By splitting a large
PU into sub-PUs and filling motion information for all the sub-PUs of the large PU, signaling cost of motion information
could be reduced. This paper describes above-mentioned techniques in detail and evaluates their coding performance
benefits based on the common test condition during HEVC development. Simulation results show that 2.4%
performance improvement over HEVC can be achieved.
Wei-Jung Chien, Ying Chen, Jianle Chen, Li Zhang, Marta Karczewicz, and Xiang Li, "Sub-block motion derivation for merge mode in HEVC," Proc. SPIE 9971, Applications of Digital Image Processing XXXIX, 99711K (Presented at SPIE Optical Engineering + Applications: August 31, 2016; Published: 27 September 2016); https://doi.org/10.1117/12.2239709.
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