| 摘要 |
Quantization techniques are used in video coding to quantize residual coefficients. So-called "dead zone parameters" are selected in the quantization process of residual coefficients of residual video blocks. The dead zone refers to a region of magnitude for coefficients below which any coefficient will be quantized to zero. A method and apparatus of quantizing coefficient values of video blocks in a video coding scheme is provided. A quantization parameter is selected for a set of video blocks. Dead zone parameters are then selected for different video blocks in the set of video blocks. Next, the quantization parameter and the dead zone parameters are applied to quantize the coefficient values of each of the video blocks. |
