Nonlinear Quantization Control Method Based on Buffer Status

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a quantization control method according to the state of a buffer in subordinate coding. In this quantization control method, a non-linear quantization control method of increasing the fluctuation of the quantization step when the state of the buffer is overflow or underflow and reducing the variation of the quantization step within a range where the risk of overflow is small .;As a result, the quality of the encoding can be improved by quickly and effectively responding to the state of the memory occupancy rate in the buffer.