关键词: 基于行的小波变换, 提升格式, 基于上下文的算术编码

Abstract:

Due to the large requirement for memory and the high complexity of computation, JPEG2000 can not be used in many conditions. The line-based wavelet transform was proposed and accepted because it required lower memory without affecting the result of wavelet transform. In this paper, the improved lifting scheme was used to perform wavelet transform to replace Mallat algorithm in the original linebased wavelet transform, the corresponding context-based arithmetic coding was discussed here too. As a result, considerable reduction of memory and computational costs can be achieved.

Key words: line-based wavelet image compression, lifting scheme, context-based arithmetic coding