Title :
Bi-directional optical flow for improving motion compensation
Author :
Alshin, A. ; Alshina, E. ; Lee, T.
Abstract :
New method improving B-slice prediction is proposed. By combining the optical flow concept and high accuracy gradients evaluation we construct the algorithm which allows pixel-wise refinement of motion. This approach does not require any signaling for decoder. According to tests with WQVGA sequences bit-saving of 2%-6% can be achieved using this tool.
Keywords :
decoding; gradient methods; image sequences; motion compensation; video coding; B-slice prediction; WQVGA sequence; bi-directional optical flow; decoder; gradient evaluation; motion compensation; pixel-wise motion refinement; bi-directional prediction; optical flow;
Conference_Titel :
Picture Coding Symposium (PCS), 2010
Conference_Location :
Nagoya
Print_ISBN :
978-1-4244-7134-8
DOI :
10.1109/PCS.2010.5702525
