18912347. TRUNCATED BIT DEPTH SUPPORT SEI MESSAGES (Tencent America LLC)
TRUNCATED BIT DEPTH SUPPORT SEI MESSAGES
Organization Name
Inventor(s)
Stephan Wenger of Hillsborough CA US
TRUNCATED BIT DEPTH SUPPORT SEI MESSAGES
This abstract first appeared for US patent application 18912347 titled 'TRUNCATED BIT DEPTH SUPPORT SEI MESSAGES
Original Abstract Submitted
A method of video decoding includes receiving a coded video bitstream comprising coded information of one or more coded pictures, the coded information includes an SEI message associated with at least a first picture in the one or more coded pictures, the SEI message includes at least a syntax element indicative of at least one of a forward truncation function for converting an original picture of a first bit depth to the first picture of a second bit depth and/or a reverse truncation function corresponding to the forward truncation function, the second bit depth is lower than the first bit depth. The method also includes reconstructing at least the first picture comprising first reconstructed samples based on the coded information, a numbering range of sample values of the first reconstructed samples is determined by at least one of the forward truncation function and/or the reverse truncation function.