采取对基准图卫片中特征进行亚像元精度特征定位的方法，可以将匹配精度提高到1／3个像素以内。
The location precision is improved to 1/3 pixel by performing sub - pixel edge detection in fiducial satellite photo image.
请记住，透镜、畸变和特征点的跟踪精度将使它永远不会完美。
Remember it's never going to be perfect due to lenses, distortion and tracking accuracy of the features.
实验证明，该算法不但能克服相位一致性的局限性，还提高了特征的定位精度和抗噪性能。
Experiments show that this algorithm not only can overcome the limitations of phase congruency, but also can improve the location accuracy and anti-noise ability.
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