/usr/include/mrpt/vision/ is in libmrpt-dev 1:1.5.5-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/mrpt/vision/include/
/usr/include/mrpt/vision/include/mrpt/
/usr/include/mrpt/vision/include/mrpt/maps/
/usr/include/mrpt/vision/include/mrpt/maps/CLandmark.h
/usr/include/mrpt/vision/include/mrpt/maps/CLandmarksMap.h
/usr/include/mrpt/vision/include/mrpt/obs/
/usr/include/mrpt/vision/include/mrpt/obs/CObservationVisualLandmarks.h
/usr/include/mrpt/vision/include/mrpt/slam/
/usr/include/mrpt/vision/include/mrpt/slam/CLandmark.h
/usr/include/mrpt/vision/include/mrpt/slam/CLandmarksMap.h
/usr/include/mrpt/vision/include/mrpt/slam/CObservationVisualLandmarks.h
/usr/include/mrpt/vision/include/mrpt/vision/
/usr/include/mrpt/vision/include/mrpt/vision.h
/usr/include/mrpt/vision/include/mrpt/vision/CCamModel.h
/usr/include/mrpt/vision/include/mrpt/vision/CDifodo.h
/usr/include/mrpt/vision/include/mrpt/vision/CFeature.h
/usr/include/mrpt/vision/include/mrpt/vision/CFeatureExtraction.h
/usr/include/mrpt/vision/include/mrpt/vision/CImagePyramid.h
/usr/include/mrpt/vision/include/mrpt/vision/CStereoRectifyMap.h
/usr/include/mrpt/vision/include/mrpt/vision/CUndistortMap.h
/usr/include/mrpt/vision/include/mrpt/vision/CVideoFileWriter.h
/usr/include/mrpt/vision/include/mrpt/vision/TSimpleFeature.h
/usr/include/mrpt/vision/include/mrpt/vision/bundle_adjustment.h
/usr/include/mrpt/vision/include/mrpt/vision/chessboard_camera_calib.h
/usr/include/mrpt/vision/include/mrpt/vision/chessboard_find_corners.h
/usr/include/mrpt/vision/include/mrpt/vision/chessboard_stereo_camera_calib.h
/usr/include/mrpt/vision/include/mrpt/vision/descriptor_kdtrees.h
/usr/include/mrpt/vision/include/mrpt/vision/descriptor_pairing.h
/usr/include/mrpt/vision/include/mrpt/vision/link_pragmas.h
/usr/include/mrpt/vision/include/mrpt/vision/multiDesc_utils.h
/usr/include/mrpt/vision/include/mrpt/vision/pinhole.h
/usr/include/mrpt/vision/include/mrpt/vision/pnp_algos.h
/usr/include/mrpt/vision/include/mrpt/vision/tracking.h
/usr/include/mrpt/vision/include/mrpt/vision/types.h
/usr/include/mrpt/vision/include/mrpt/vision/utils.h