Method and Apparatus of Delta Quantization Parameter Processing for High Efficiency Video Coding

摘要

In one implementation, a method codes video pictures, in which each of the video pictures is partitioned into LCUs (largest coding units). The method operates by receiving a current LCU, partitioning the current LCU adaptively to result in multiple leaf CUs, determining whether a current leaf CU has at least one nonzero quantized transform coefficient according to both Prediction Mode (PredMode) and Coded Block Flag (CBF), and incorporating quantization parameter information for the current leaf CU in a video bitstream, if the current leaf CU has at least one nonzero quantized transform coefficient. If the current leaf CU has no nonzero quantized transform coefficient, the method excludes the quantization parameter information for the current leaf CU in the video bitstream.

主权项

1. A method for coding of video pictures, wherein each of the video pictures is partitioned into LCUs (largest coding units), the method comprising:
receiving a current LCU; partitioning the current LCU adaptively to result in multiple leaf CUs; determining whether a current leaf CU has at least one nonzero quantized transform coefficient according to both Prediction Mode (PredMode) and Coded Block Flag (CBF); if the current leaf CU has at least one nonzero quantized transform coefficient, incorporating quantization parameter information for the current leaf CU in a video bitstream; and if the current leaf CU has no nonzero quantized transform coefficient, excluding the quantization parameter information for the current leaf CU in the video bitstream.