# How to use DenseFeatureDetector ?

Hello

I'm trying to obtain dense 3D reconstruction. Using SIFT or SURF detector/descriptor one can obtain only sparse reconstruction which can then be upgrated using dense matching (using DenseFeatureDetector). Unfortunately, I could not find any examples of its implementation. Could someone give me an example ? Should I rectify images before ?

Thank you

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I've used cv::Ptr< cv::FeatureDetector > detector = cv::FeatreDetector::create("Dense"); detector->detect(...), but I am not sure how you will use it? You may extract SIFT or SURF descriptors and then matching them with the ones from the 3D model?