| 摘要 |
An adaptive quantization controller and methods thereof are provided. In an example method, motion prediction may be performed on at least one frame included in an input frame based on a reference frame. A prediction error may be generated as a difference value between the input frame and the reference frame. An activity value may be computed based on a received macroblock, the received macroblock associated with one of the input frame and the prediction error. A quantization parameter may be generated by multiplying a reference quantization parameter by a normalization value of the computed activity value. In another example method, an input frame including an I frame may be received and motion prediction for the I frame may be performed based at least in part on information extracted from one or more previous input frames. In a further example, the adaptive quantization controller may perform the above-described example methods. |
