炫技的说法是:"Our algorithm achieved sub-pixel level accuracy." Lucas-Kanade Summary Lucas-Kanade其实就是普通的Nonlinear Least Squares。因为图像是离散的函数,所以要利用 1.差分 2.插值 来解决一些离散函数的问题。 Lucas-Kanade算法 算Lucas-Kanade Residual的线性化。但是因为图像是离散函数,我们要利用以下的...
(single level). If set to 1, two levels are used, and so on. criteria – Parameter specifying the termination criteria of the iterative search algorithm (after the specified maximum number of iterations criteria.maxCount or when the search window moves by less than criteria.epsilon . derivLamb...
参考文献: Pyramidal Implementation of the Lucas Kanade Feature Tracker Description of the algorithmsemanticscholar.org/pap 编辑于 2024-06-18 10:57・IP 属地北京 Pyramid 光流 算法 赞同2添加评论 分享喜欢收藏申请转载 ...
Figure 1. The Lucas-Kanade algorithm (Lucas and Kanade, 1981) Figure 2. A schematic overview of the Lucas-Kanade algorithm (Lucas and Kanade, 1981). Figure 3. The compositional algorithm used in Shum and Szeliski (2000) is similar to the Lucas-Kanade algorithm. Figure 4. The inverse compo...
Lucas-Kanada最初于1981年提出,该算法假设在一个小的空间邻域内运动矢量保持恒定,使用加权最小二乘法估计光流。由于该算法应用于输入图像的一组点上时比较方便,因此被广泛应用于稀疏光流场。 算法原理参考论文:Pyramidal Implementation of the Lucas Kanade Feature TrackerDeion of the algorithm ...
1、Lucas-Kanade 20 Years On: A Unifying Framework: Part 3 Simon Baker, Ralph Gross, and Iain Matthews CMU-RI-TR-03-35 Abstract Since the Lucas-Kanade algorithm was proposed in 1981 image alignment has become one of the most widely used techniques in computer vision. Applications range from...
Evaluating the accuracy performance of Lucas-Kanade algorithm in the circumstance of PIV application[J]. PAN Chong,XUE Dong,XU Yang,WANG JinJun,WEI RunJie.Science China(Physics,Mechanics & Astronomy). 2015(10)Pan, C.; Xue, D.; Xu, Y.; Wang, J.; Wei, R. Evaluating the accuracy ...
论文 Pyramidal Implementation of the Lucas Kanade Feature Tracker Description of the algorithm的阅读笔记...的光流法在处理运动幅度大的图片时,会出现问题。尽管可以使用大的窗口,但是大窗口会影响局部准确率。而基于图片空间金字塔的Lucas-Kanade则能够很好的处理该问题。 1、图片金字塔 图片金字塔是通过 光流估计 ...
Pyramidal implementation of the affine lucas kanade feature tracker description of the algorithm[J]. Intel Corporation, 2001, 5(1-10): 4. Lucas–Kanade光流算法学习 ; I t。 写做: 这个方程有三个未知量,尚不能被解决,这也就是所谓光流算法的光圈问题。那么要找到光流向量则需要另一套解决的方案。
// Call the Lucas Kanade algorithm // vector<uchar> features_found; cv::calcOpticalFlowPyrLK( imgA, // Previous image imgB, // Next image cornersA, // Previous set of corners (from imgA) cornersB, // Next set of corners (from imgB) features_found, // Output vector, each is 1 ...