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2018-05-11 11:14:26 -0600 | asked a question | Another cv::net.forward() problem Another cv::net.forward() problem Hi everyone, I am trying to implement a object detector in ROS via OpenCV, However, in |
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2015-07-23 16:43:07 -0600 | asked a question | How do I use SimpleBlobDetection with Color? Hi, Im trying to use the simpleBlobDetector for object tracking, but in all the information that I have looked for doesnt appear the parameters for Filtering by color. What parameters do i have to use for this kind of filtering? Thanks |
2015-07-18 20:37:04 -0600 | asked a question | What represents the output of SolvePnP? Hi there, Im working on object tracking, for this i used SURF for keypoints detection and matching, findHomography(), which gave me the corners of the object im tracking in the video frame, and finally, i am using solvePnP to get the 3d position of the object from the camera. The code i've got is working perfectly, but I dont understand the results. I mean, the tvector from solvePnp() got the x,y,z coordinates of the object in which frame, to what origin? I dont know, but when im facing the object directly, two of the three coordinates of the tvector show me negative values. I cant understand why. Maybe someone can help me, or give me a link where this is explained Thanks |
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2015-06-25 01:44:58 -0600 | asked a question | Drawmatches throws error when trying to use only good matches Hi! Im trying to track and object through feature detection. The code of example I have works very well using all the matches. But, to make it "better", i would like to use only the best matches. Then I select them, but when I use drawMatches the program doesnt work. Here is my code: And this is the error: However, if i dont use good_matches but matches, it works. I hope someone can help me Thanks! Edit 1: I kinda solved the problem. I wasnt clearing the good_matches vector, so it was growing and growing, then eventually gets to core dumped. Now the problem that I have is that when it doesnt get good matches, shows me that error ... |