Japan, Sept. 16 -- QUALCOMM INCORPORATED has got intellectual property rights for 'GRADIENT-BASED PREDICTION REFINEMENT FOR VIDEO CODING.' Other related details are as follows:
Application Number: JP,2025-019182
Category (FI): H04N19/139,H04N19/105
Stage: PROBLEM TO BE SOLVED: To provide a decoding method, encoding method, device and storage medium for video data that improve the precision of prediction samples using a gradient filter.SOLUTION: A method of decoding video data comprises: determining one or more prediction blocks for inter-predicting a current block based on one or more motion vectors for the current block; modifying one or more samples of the prediction block based on various factors such as a displacement in a horizontal direction, a horizontal gradient, a displacement in the vertical direction, and a vertical gradient in gradient-based prediction refinement; and refining gradient-based prediction where a precision level of at least one of the horizontal and vertical displacements is unified for different prediction modes, e.g., including an affine mode and a bi-directional optical flow (BDOF) mode.SELECTED DRAWING: Figure 7 (Grant)
Filing Date: Feb. 7, 2025
Publication Date: June 10, 2025
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
