OrbFeatureDetector issue

asked 2012-11-10 07:41:56 -0600

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Hello

I am having trouble with detecting KeyPoint s with the OrbFeatureDetector, this is my code, it is taken from the Surf example, but as I understand it has the same functionality.

vector<KeyPoint> keypoints_1, keypoints_2;
int minHessian = 15;

OrbFeatureDetector detector(minHessian);

detector.detect( img_1, keypoints_1 );
detector.detect( img_2, keypoints_2 );

the keypoints vector gets filled with -1274509 the max value it can support I'm thinking. And at the compute part it crashes. What am I doing wrong? Pls help.

Peter

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answered 2012-11-12 10:23:43 -0600

This post is a wiki. Anyone with karma >50 is welcome to improve it.

The first parameter of ORBFeatureDetector constructor parameter is maximum number of features to retain. I think that is your mistake. Try to increase the value to 200-400.