In this paper, it also propose a new method of search engine of image compare, it establishes image feature database by new fractal image processing and index.

另外提出一种图像比对搜索方法，即利用最新的分形图像处理和索引技术建立图像特征数据库。

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The results showed that the fractal dimension is an effective index to quantitatively characterize the complexity of wood interior porosity during the drying process.

结果表明：木材内部孔隙度的分形维数是定量反映干燥过程中木材内部孔隙复杂程度新的有效指标。

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Based on fractal theory, the index to evaluate the running stability of fluid machine is put forward.

基于分形理论，提出了流体机械轴心轨迹稳定性的定量评价指标。

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