MUMBAI, India, June 19 -- Intellectual Property India has published a patent application (202527097164 A) filed by Mediatek Inc. on October 08, 2025, for Method And Apparatus Of Bi-Directional Optical Flow Displacement Fusion For Video Coding.
Inventors include Lai, Chen-Yen; Chen, Guan-Hao; Lin, Wen-Chun; Chuang, Tzu-Der; Chen, Ching-Yeh; Hsu, Chih-Wei; and Chen, Yi-Wen.
The application for the patent was published on June 05, 2026, under issue no. 23/2026.
Abstract: Method and apparatus of bi-directional prediction are disclosed. According to one method of the present invention, sample-based displacements for samples in the current block are determined. A combined displacement is determined for a target sample in the current block by combining derived displacements of multiple samples in a region enclosing the target sample. A bidirectional predictor is determined for the current block based on a first predictor derived from a first reference picture in list0, a second predictor derived from a second reference picture in list1, and a refinement term derived using refinement information comprising the combined displacement. The current block is encoded or decoded by using prediction information comprising the bidirectional predictor. According to another method, both motion displacements have the same sign for the case that both reference pictures are before or after the current picture.
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