Is PyramidAdaptedFeatureDetector gone in OpenCV 3? <p>I have an OpenCV 2 C++ program which makes use of <a href="http://docs.opencv.org/2.4/modules/features2d/doc/common_interfaces_of_feature_detectors.html#pyramidadaptedfeaturedetector" rel="nofollow"><code>PyramidAdaptedFeatureDetector</code></a> (used over a <a href="http://docs.opencv.org/2.4/modules/features2d/doc/common_interfaces_of_feature_detectors.html#goodfeaturestotrackdetector" rel="nofollow"><code>GoodFeaturesToTrackDetector</code></a> for a Lukas-Kanade optical flow) and would like to port it to OpenCV 3. However I cannot find any trace of that class in the docs or in the code for OpenCV 3. Has it been removed? What is suggested as a replacement?</p>