The attenuation of X-ray through the object is non-linear and the gray level of image is non-linear response of object thickness.

射线穿过物体的衰减是非线性的，经过影像系统得到的图像灰度与物体厚度是非线性的关系；

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The optimal segmentation scale means in that image level pure object is most and mix object is lest.

度也就是选择影像中纯对象最多而混合对象数目最少的分割尺度。

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Based on the idea that human observers could greatly simplify the matching problem at the level of object structure, a structure-driven SAR image automatic registration algorithm was proposed.

基于人工通过地物结构推理匹配关系进行配准的想法，提出了一种基于结构的SAR图像自动配准算法。

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As an object or image looks and behaves more like a human, the viewer's level of shinwakan increases.

ECONOMIST: Animation and robotics