ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,950, issued on Jan. 27, was assigned to Canon K.K. (Tokyo).

"Image coding apparatus, image coding method, and program, and image decoding apparatus, image decoding method, and program" was invented by Osamu Kawaguchi (Kanagawa, Japan) and Masato Shima (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Control over encoding of a quantization parameter is appropriately enabled with not only square sub-blocks but also rectangular sub-blocks by using a quantization control size adaptively according to a shape of sub-blocks, with the result that coding efficiency is improved."

The patent was filed on July 15, 2024, under Application No. 18/773,214. ...