摘要
本文首次系统地研究了基于ＩＦＳ分形理论的信源压缩编码与传统方法的关系，文中通过理论分析建立了算术编码和ＬＰＣ与ＩＦＳ理论的联系，并实验对比了基于ＩＦＳ的信源编码与ＤＦＴ变换编码，指出了两者的差异，验证了它们作为通用信号压缩方法的可能性，以及ＩＦＳ分形压缩所特有的优越性。最后提出了提高分形信号压缩性能时需要首先解决的一些问题。
In this paper, the relationships between IFS fractal-based source coding techniques and traditional approaches are studied systematically for the first time. Connections between arithmetic coding, LPC and IFS are presented through theoretical analysis. Experimental comparison of IFS compression and transform coding,which tests their difference, gives evidence to the suitability of each to act as a generic signal compresssion approach. The superiority that is unique to fractal based-algorithms is reported. Some important problems for the further improvement to IFS signal compression are also analyzed.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1996年第10期1-7,共7页
Acta Electronica Sinica
基金
国家自然科学基金
关键词
信源编码
迭代函数系统
分形
Source coding, Iterated function systems, Fractal
