An uniform sampling image can be transformed to a space variant sampling image by log-polar coordinate mapping which reduces the searching space and redundant pixels.
通过采用对数极坐标映射，可将空间均匀取样得到的图像变换成非均匀取样的图像，从而减小冗余像素，压缩了搜索空间。
Mapping can be refined by avoiding the use of near-polar areas, and the topography of a crystal can be improved by selecting the optimum tilting Angle.
回避使用近极区以提高作图精度，优选倾伏角度改善立体图形象。
Mapping can be refined by avoiding the use of near-polar areas, and the topography of a crystal can be improved by selecting the optimum tilting Angle.
回避使用近极区以提高作图精度，优选倾伏角度改善立体图形象。
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