The location precision is improved to 1/3 pixel by performing sub - pixel edge detection in fiducial satellite photo image.
采取对基準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。
Through thinning arithmetic, clear and precision location single pixel edge is achieved.
经细化算法后,得到了图像清晰、位置精确的单像素边缘图像。
The experiment results showed that this algorithm formed single pixel edge of the fingerprint and achieved the effects of edge enhancement, noise cancellation, smooth, binarization and edge thinning …
实验结果表明,该算法在大大降低时间复杂度的同时,形成单像素连接的指纹二值图像,达到了增强、消噪、平滑、二值化、细化的目的,处理效果较好。