ALEXANDRIA, Va., June 12 -- United States Patent no. 12,301,812, issued on May 13, was assigned to InterDigital VC Holdings Inc. (Wilmington, Del.).
"Quantization for video encoding or decoding based on the surface of a block" was invented by Philippe De Lagrange (Betton, France), Philippe Bordes (Laille, France) and Edouard Francois (Bourg des Comptes, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image is split into a plurality of blocks of various sizes and a subdivision level counter is associated to each of the blocks. The value of this subdivision level counter for a block is representative of the size of the block and is used to determine the quantization parameter for the block. The value ...