US Patent Issued to InterDigital CE Patent Holdings on May 26 for "Luma to chroma quantization parameter table signaling" (French Inventors)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,641,249, issued on May 26, was assigned to InterDigital CE Patent Holdings SAS (Paris).

"Luma to chroma quantization parameter table signaling" was invented by Philippe De Lagrange (Betton, France), Edouard Francois (Bourg des Comptes, France), Franck Hiron (Chateaubourg, France) and Christophe Chevance (Brece, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "Compression technology comprises deriving chroma quantization parameter (Qpc) based on luma Qp using luma-to-chroma Qp mapping table. Such a table may be shared by the encoder and the decoder. However, in some cases, signaling such a table in the data stream instead of having it fixed by a stan...