Method and apparatus of delta quantization parameter processing for high efficiency video coding

摘要

Disclosed is a method for coding of video pictures which each of the video pictures is partitioned into LCUs (largest coding units). The method comprises the step of (1) receiving a current LCU. (2) Partitioning the current LCU adaptively to result in multiple leaf CUs. (3) Incorporating quantization parameter information for a current leaf CU in a video bit stream if the current leaf CU has at least one nonzero quantized transform coefficient. The at least one nonzero quantized transform coefficient is detected according to Prediction Mode (PredMode), and Coded Block Flag (CBF). The quantization parameter information for the current leaf CU is not incorporated in the video bit stream if the current leaf CU has no nonzero quantized transform coefficient.