US Patent Issued to Alibaba (China) on Sept. 15 for "Methods for frame extraction processing of video and for playing video at variable speeds, video platform, and medium" (Chinese, American Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,738,059, issued on Sept. 15, was assigned to Alibaba (China) Co. Ltd. (Hangzhou, China).

"Methods for frame extraction processing of video and for playing video at variable speeds, video platform, and medium" was invented by Jianhua Chen (Hangzhou, China) and Yan Ye (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for frame extraction processing of a video includes obtaining an encoded image of a video sequence; obtaining presentation time stamps (PTSes) and non-reference frame flags of the encoded image, wherein the encoded image has an encoding structure with time domain levels; determining frame dropping positions of the video sequ...