MUMBAI, India, Sept. 28 -- Intellectual Property India has published a patent application (202418018492 A) filed by Beijing Dajia Internet Information Technology Co. , Ltd. on March 14, 2024, for Methods And Apparatus Of Video Coding Using Subblock-Based Temporal Motion Vector Prediction.
Inventors include Chen, Yi-Wen; and Wang, Xianglin.
The application for the patent was published on September 25, 2026, under issue no. 39/2026.
Abstract: A method of subblock-based temporal motion vector prediction is performed at a computing device. The computing device acquires a video bitstream including data associated with multiple encoded pictures. While decoding a current picture in the video bitstream, the computing device selects, according to syntax elements signaled in the video bitstream, one reference picture as a collocated picture of the current picture, and determines a motion shift between the collocated picture and the current picture from motion information of spatially neighboring blocks of a current code unit (CU) according to a fixed order. Next, the computing device splits the current CU into multiple sub-CUs, obtains a temporal motion vector predictor for each sub-CU from the motion shift and motion information of a block in the collocated picture that corresponds to a respective subblock of the current picture and decodes the current CU according to the temporal motion vector predictors.
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