US Patent Application 18344611. LOW COMPLEXITY HISTORY USAGE FOR RICE PARAMETER DERIVATION FOR HIGH BIT-DEPTH VIDEO CODING simplified abstract
Contents
LOW COMPLEXITY HISTORY USAGE FOR RICE PARAMETER DERIVATION FOR HIGH BIT-DEPTH VIDEO CODING
Organization Name
Inventor(s)
Dmytro Rusanovskyy of San Diego CA (US)
Marta Karczewicz of San Diego CA (US)
LOW COMPLEXITY HISTORY USAGE FOR RICE PARAMETER DERIVATION FOR HIGH BIT-DEPTH VIDEO CODING - A simplified explanation of the abstract
- This abstract for appeared for US patent application number 18344611 Titled 'LOW COMPLEXITY HISTORY USAGE FOR RICE PARAMETER DERIVATION FOR HIGH BIT-DEPTH VIDEO CODING'
Simplified Explanation
The abstract describes a method for decoding video data. It involves updating a coefficient statistic value based on transform coefficients of a transform block. This updating process includes performing a derivation process to determine a temporary value for each transform coefficient. The specific derivation process used depends on the encoding procedure used for each coefficient. The coefficient statistic value is then set as an average of the previous value and the temporary value. A history value is determined based on the coefficient statistic value, and a Rice parameter is determined for a specific transform coefficient.
Original Abstract Submitted
A method of decoding video data comprises updating a coefficient statistic value based on one or more transform coefficients of a transform block (TB), wherein updating the coefficient statistic value comprises, for each respective transform coefficient of the one or more transform coefficients of the TB: performing a derivation process to determine a temporary value, wherein the derivation process is determined based at least in part on which encoding procedure of a plurality of encoding procedures is used to encode the respective transform coefficient, the plurality of encoding procedures including a context-based procedure for encoding the respective transform coefficient and encoding the respective transform coefficient as an absolute value; and setting the coefficient statistic value as an average of the coefficient statistic value and the temporary value; determining a history value based on the coefficient statistic value; determining a Rice parameter for a specific transform coefficient of the TB.
