Method of Low Complexity Entropy Coding Based on Difference of Symbol Arrival Probability

摘要

A low complexity entropy coding (LCEC) method for replacing symbol codes based on difference value information of symbol-to-symbol occurrence probabilities is based on difference value information of symbol-to-symbol occurrence probabilities in a lookup table having symbol occurrence probability information for each symbol Setting an adaptive counter threshold value and performing a relatively small number of symbol code replacement when the difference in symbol occurrence probability is large using the adaptive counter threshold value. Instead of using a counter threshold value of a fixed size, the counter threshold value may be set differently for each symbol code, so that the symbol code replacement can be performed efficiently based on the adaptive counter threshold value.