公开(公告)号：WO2022125180A1

公开(公告)日：2022-06-16

申请号：PCT/US2021/054223

申请日：2021-10-08

申请人： QUALCOMM INCORPORATED [US]/[US]

发明人： AGGARWAL, Dhruv ,  SINGH, Anand ,  KOLEKAR, Akarsh Ningoji Rao

IPC分类号： H04N19/186 ,  H04N19/42 ,  H04N19/593

摘要： A video coder may be configured to code a chroma block of video data as a function of reconstructed luma samples. The video coder may store, during the prediction process for a luma block, a sum of the reconstructed luma sample values for each sub-block of the luma block in a first buffer, and store, during the prediction process for the luma block, an average of the reconstructed luma sample values in a second buffer. The video coder may perform chroma from luma prediction to reconstruct a chroma block of the video data corresponding to the luma block using the sums and the average.