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2012-09-14 03:17:39 -0600 | answered a question | BRISK Feature Detector detects no keypoints Okay, I got it myself! For someone interested, the default values of the parameters for BriskFeatureDetector i.e octaves = 3 and thres = 30 doesn't gave me keypoints at all. But when I change the octaves = 0 as shown in the original author's demo to use AGAST detector of Brisk, it gave me a considerable amount of keypoints. Thanks and enjoy! |
2012-09-13 08:13:42 -0600 | asked a question | BRISK Feature Detector detects no keypoints The Brisk detector shown below gives me no keypoints. Can somebody please suggest a problem. I will try to explain what I am doing below with some of the codes. So, when I debug this and check the keypoint (kp) it says <0 items> with similar code other detector like ORB, SIFT or SURF work as intended! Can somebody please suggest a solution. I am using opencv 2.4.9 with Qt creator 2.5.2 Thanks |