Adams M D, Kossentni F
Dept. of Electr. and Comput. Eng., British Columbia Univ., Vancouver, BC, Canada.
IEEE Trans Image Process. 2000;9(6):1010-24. doi: 10.1109/83.846244.
In the context of image coding, a number of reversible integer-to-integer wavelet transforms are compared on the basis of their lossy compression performance, lossless compression performance, and computational complexity. Of the transforms considered, several were found to perform particularly well, with the best choice for a given application depending on the relative importance of the preceding criteria. Reversible integer-to-integer versions of numerous transforms are also compared to their conventional (i.e., nonreversible real-to-real) counterparts for lossy compression. At low bit rates, reversible integer-to-integer and conventional versions of transforms were found to often yield results of comparable quality. Factors affecting the compression performance of reversible integer-to-integer wavelet transforms are also presented, supported by both experimental data and theoretical arguments.
在图像编码的背景下，基于有损压缩性能、无损压缩性能和计算复杂度，对多种可逆整数到整数小波变换进行了比较。在所考虑的变换中，发现有几种表现特别出色，对于给定应用的最佳选择取决于上述标准的相对重要性。还将多种变换的可逆整数到整数版本与其传统（即不可逆实数到实数）对应版本进行了有损压缩比较。在低比特率下，发现可逆整数到整数变换版本和传统变换版本通常会产生质量相当的结果。还给出了影响可逆整数到整数小波变换压缩性能的因素，并得到了实验数据和理论论据的支持。
