ALEXANDRIA, Va., June 17 -- United States Patent no. 12,316,869, issued on May 27, was assigned to Panasonic Intellectual Property Corporation of America (Torrance, Calif.).
"Encoder, decoder, encoding method, decoding method, and recording medium" was invented by Kiyofumi Abe (Osaka, Japan), Takahiro Nishi (Nara, Japan), Tadamasa Toma (Osaka, Japan), Ryuichi Kanoh (Osaka, Japan) and Takashi Hashimoto (Hyogo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An encoder that; obtains two prediction images by performing motion compensation using two motion vectors; obtains a gradient value of each of pixels included in the two prediction images; derives a local motion estimation value for each of sub-blocks...