code compression meaning in English

代码减缩
代码压缩

A fast algorithm of image fractal coding compression based on wavelet subbands
一种快速小波子带分形图像压缩编码方法
The high entropy of the real and imaginary parts of sar raw data makes lossless - coding compression techniques unfit for sar raw data . in chapter 4 , some compression algorithms for sar raw data compression , such as baq , upq , bavq and wt - subbandcade are analyzed and discussed . an improved unrestricted polar quantizer ( upq ) , which can enhance the performance of the quantizer is put forward
第四章分别对块自适应量化( baq )算法、非约束式极坐标量化( upq )算法、块自适应矢量量化( bavq )算法和小波变换子带编码算法进行了分析和研究，并详细讨论了这些算法在工程实际中的应用。