基于RANSAC + LS算法的红外成像全局运动设计

提出了一种基于RANSAC+ LS算法的红外成像全局运动估计方法。该算法的实现过程如下：首先对匹配块进行预检验；然后利用本文算法对尽可能多的内点进行运动参数估计；最后对参数估计结果利用双线性内插方法进行运动补偿。该算法计算速度快，比RANSAC算法利用了尽可能多的内点，并能克服LS算法易受错误匹配对和外点影响的缺点。利用对实际拍摄的红外图像实验表明，该算法计算精度高于RANSAC算法和LS算法。

A Method of Global Motion Estimation of Infrared Imaging Based on RANSAC+LS Algorithm

A method of global motion estimation of infrarea imaging based on RANSAC + LS algorithm was proposed. The realized processes of the method are as follows： the matching are previewed; the global motion parameters are estimated by the algorithm for inliers as many as possible; the motion compensation of the parameter estimation results, are carried out by a bilinearity interpolation method. The method has high efficiency, uses inliers as many as possible compared with RANSAC algorithm, and can overcome LS algorithm’s defect which is susceptiole to error matching and outlier. The exper?imental results with taken practically infrared imaging show that the calculation accuracy of the algo?rithm is higher than that of RANSAC and LS algorithms.