Then feature vectors representing the distribution properties of IFS(Iterative Function System) are constructed to support the indexing of images based on the fractal coded image data.
然后在图象分形码的基础上，利用迭代函数系统分布特性构建的特征量来支持图象检索。
Fractal theory was used in this paper, and fractal feature of grain distribution of sandstone in coal-bearing strata in Permo Carboniferous System was studied.
应用分形的思路和方法研究了石炭-二叠系含煤地层砂岩粒度分布的分形特征。
The fractal analysis of spatial structure of urban system shows that the distribution of cities in GuangXi exhibits a statistical fractal feature.
基于分形理论对广西城镇体系空间结构进行研究，发现广西城镇空间分布具有统计分形特征。
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