US Patent Issued to Alibaba Innovation on Oct. 14 for "Residual sign prediction of transform coefficients in video coding" (Chinese, American Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,445,651, issued on Oct. 14, was assigned to Alibaba Innovation Private Ltd. (Singapore).

"Residual sign prediction of transform coefficients in video coding" was invented by Jie Chen (Beijing), Mohammad Golam Sarwer (Cupertino, Calif.), Yan Ye (San Diego), Ru-Ling Liao (Beijing) and Xinwei Li (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A VVC-standard encoder and a VVC-standard decoder are provided, implementing a residual sign prediction method utilizing a sorting order of residual coefficients and an expanded region of a TB. As sign prediction accuracy is higher for larger transform coefficient levels, a VVC-standard encoder and a VVC-stand...