【摘要】 图像配准是红外图像处理技术的前提,广泛应用于成像制导、光电侦查及工业实时监控等领域。考虑红外图像的实时配准需求,利用对数极坐标图像的尺度、转不变特性,将配准过程从直角坐标空间引入到对数极坐标空间,提出了基于双投影策略的配准算法,将二维空间的配准参数估计转换成两个一维曲线的空间距离估计。此算法在保证尺度变化及旋转的匹配精度条件下,轴向投影统计大大降低匹配计算量。更多还原

【Abstract】 Image registration is a key technology applied in infrared guidance,reconnaissance,real time monitor and so on.Considering the need of real time and image in log-polar coordinate having scale and rotate un-variance property,a fast IR image registration algorithm based on coordinate dual-axis projection is proposed.Registration parameters estimation of image is transformed in projection curve distance estimation in new log-polar space.The new algorithm greatly speeds up processing from Cartesian coordinates to log-polar coordinates and ensures the reliability of matches.Theoretical analysis and experiment show that this method has better performance in both recognition speed and accuracy.更多还原