ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,457,361, issued on Oct. 28, was assigned to Dolby Video Compression LLC (Wilmington, Del.).
"Bit-depth scalability" was invented by Thomas Wiegand (Berlin) and Martin Winken (Berlin).
According to the abstract* released by the U.S. Patent & Trademark Office: "To increase efficiency of a bit-depth scalable data-stream an inter-layer prediction is obtained by mapping samples of the representation of the picture or video source data with a first picture sample bit-depth from a first dynamic range corresponding to the first picture sample bit-depth to a second dynamic range greater than the first dynamic range and corresponding to a second picture sample bit-depth being higher than the f...