首先，进行转换坐标， 将矢量要素点坐标精确到亚像素精度(subpixel accuracy)，其主要思想是将浮点坐标的小数部 分转换到0至255区间，这种坐标转换的优点是考虑了小数部分对像素的栅格单元权值(cover) 的影响...
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sub-pixel position accuracy 亚像素定位精度
The principle of sub pixel subdivision positioning, measuring method for the pointing accuracy and the attainable accuracy are introduced in the paper.
本文介绍了亚象素细分定位的原理，瞄准精度的测量方法，以及所能达到的精度。
Our experiments indicate that the system is able to achieve sub-pixel accuracy and achieve real-time warping with minimum system performance degradation.
实验结果表明，系统能够获得亚像素级的精度，并且能在系统性能衰减最小的情况下达到实时变形。
Experiments results show that these algorithms can reach sub-pixel accuracy for the images of the plainness and small areas.
结果表明，在平坦小区域采用各种算法均能够达到子像元精度。
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