运用JMVC平台实现的一种快速算法，通过阈值选择缩小了搜索范围，进而大幅度提高了编码效率。-JMVC platform using a fast algorithm, the threshold selected by narrowing the search range, and thus greatly improve the coding efficiency.

较新的优化算法，麻雀算法优化BP神经网络权值与阈值；(the key parameters of BP are choosed automatically by Sparrow Search Algorithm.)