when i use flannBaseMathcer to match 2 sets of orb descriptor, it occured an exception : unsigned long exception. http://blog.csdn.net/holybin/article/details/40926315 this blog says that orb descriptior has a type of uchar, but flannMatcher doesn‘t…
最终效果: 其实这个小功能非常有用,甚至加上只有给人感觉好像人脸检测,目标检测直接成了demo了,主要代码如下: // localize the object std::vector<Point2f> obj; std::vector<Point2f> scene; for (size_t i = 0; i < good_matches.size(); ++i) { // get the keypoints from the good matches obj.push_bac…
Build 4.0.0.Alpha1 ============================= ** Known BREAKING CHANGES from NH3.3.3.GA to 4.0.0 NHibernate now targets .Net 4.0. Many uses of set types from Iesi.Collections have now been changed to use corresponding types from the BC…
OpenCV特征点检测------ORB特征 ORB是是ORiented Brief的简称.ORB的描述在下面文章中: Ethan Rublee and Vincent Rabaud and Kurt Konolige and Gary Bradski, ORB: an efcient alternative to SIFT or SURF, ICCV 2011 没有加上链接是因为作者确实还没有放出论文,不过OpenCV2.3RC中已经有了实现,WillowGarage有一个talk也提到了这个…
原文链接:https://mp.weixin.qq.com/s/S4b1OGjRWX1kktefyHAo8A #include <opencv2/opencv.hpp> #include <opencv2/xfeatures2d.hpp> #include <iostream> using namespace cv; using namespace cv::xfeatures2d; using namespace std; int main(int argc, char…
SQL Server 2017的Linked Server配置触发的bug"Exception Code = c0000005 EXCEPTION_ACCESS_VIOLATION" 现象描述: 数据库版本:SQL Server 2017 (RTM-CU14) (KB4484710) - 14.0.3076.1 (X64) 出现大量的Dump File文件,如下所示: 其中一个SQLDump748.txt如下所示: Current time is 05:00:20 05/17…
ORB算法 目录(?)[+] 什么是ORB 如何解决旋转不变性 如何解决对噪声敏感的问题 关于尺度不变性 关于计算速度 关于性能 Related posts 什么是ORB 七 4 Year 2011 passionke未分类 ORB是是ORiented Brief的简称.ORB的描述在下面文章中: Ethan Rublee and Vincent Rabaud and Kurt Konolige and Gary Bradski, ORB: an efcient alternat…
ORB中有很多参数可以设置,在OpenCV中它可以通过ORB来创建一个ORB检测器. ORB::ORB(int nfeatures=500, float scaleFactor=1.2f, int nlevels=8, int edgeThreshold=31, int firstLevel=0, int WTA_K=2, int scoreType=ORB::HARRIS_SCORE, int patchSize=31) 下面介绍一下各个参数的含义: nfeatures - 最多提取的特征点的…