ALEXANDRIA, Va., June 16 -- United States Patent no. 12,309,418, issued on May 20, was assigned to Apple Inc. (Cupertino, Calif.).
"Method for encoding/decoding image signal and device therefor" was invented by Bae Keun Lee (Seongnam-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image decoding method according to the present invention may comprise the steps of: generating an affine mergence candidate list for a current block; specifying one of multiple affine mergence candidates contained in the affine mergence candidate list; deriving affine seed vectors of the specified mergence candidate; deriving a sub-block motion vector for a sub-block in the current block by using the affine seed v...