18683662. HISTORY-BASED RICE PARAMETER DERIVATIONS FOR WAVEFRONT PARALLEL PROCESSING IN VIDEO CODING (GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.)
Contents
HISTORY-BASED RICE PARAMETER DERIVATIONS FOR WAVEFRONT PARALLEL PROCESSING IN VIDEO CODING
Organization Name
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
Inventor(s)
Haoping Yu of Palo Alto CA (US)
Vladyslav Zakharchenko of Palo Alto CA (US)
HISTORY-BASED RICE PARAMETER DERIVATIONS FOR WAVEFRONT PARALLEL PROCESSING IN VIDEO CODING
This abstract first appeared for US patent application 18683662 titled 'HISTORY-BASED RICE PARAMETER DERIVATIONS FOR WAVEFRONT PARALLEL PROCESSING IN VIDEO CODING
Original Abstract Submitted
In some embodiments, a video decoder decodes a video from a bitstream. The video decoder accesses a binary string representing a partition of the video and processes each coding tree unit (CTU) in the partition to generate decoded values in the CTU. The process includes for the first CTU of a current CTU row, determining whether the current CTU row is the first CTU row in the partition. If so, a history counter is set to an initial value. If not, the history counter is set to a value stored in a history counter storage variable. The video decoder decodes the CTU by calculating the Rice parameters for the CTU based on the history counter and decoding the binary string corresponding to the CTU based on the calculated Rice parameters. After decoding the CTU, the current value of the history counter is stored in the history counter storage variable.
