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Algorithm used in Descriptor Matcher trainer in OpenCV

asked 2014-01-29 12:20:07 -0500

motiur gravatar image

The code snippet below shows the basics of training a descriptor matcher used in object recognition.

detector = cv.FeatureDetector('ORB');
extractor = cv.DescriptorExtractor('ORB');
matcher = cv.DescriptorMatcher('BruteForce-Hamming')

for(i=1 to N)
{
   detector(i) = detector.detect(image(i));
   descriptor(i) = extractor.compute(image(i),detector(i));
   matcher.add(descriptor(i));

}
matcher.train();

The code is not syntactically correct, however I want to know how the train() function of matcher works here.

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answered 2014-01-29 22:06:54 -0500

conceptgame gravatar image

The implementation of train method for Brute Force Matcher is empty. It only makes sense for other matcher where you can train in advance without query descriptors.

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So what is happening to other matchers.

motiur gravatar imagemotiur ( 2014-01-31 05:48:50 -0500 )edit
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Asked: 2014-01-29 12:20:07 -0500

Seen: 98 times

Last updated: Jan 29 '14