/usr/include/pcl-1.7/pcl/recognition/impl/ is in libpcl-dev 1.7.2-14build1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/pcl-1.7/pcl/recognition/impl/cg/
/usr/include/pcl-1.7/pcl/recognition/impl/cg/correspondence_grouping.hpp
/usr/include/pcl-1.7/pcl/recognition/impl/cg/geometric_consistency.hpp
/usr/include/pcl-1.7/pcl/recognition/impl/cg/hough_3d.hpp
/usr/include/pcl-1.7/pcl/recognition/impl/hv/
/usr/include/pcl-1.7/pcl/recognition/impl/hv/greedy_verification.hpp
/usr/include/pcl-1.7/pcl/recognition/impl/hv/hv_go.hpp
/usr/include/pcl-1.7/pcl/recognition/impl/hv/hv_papazov.hpp
/usr/include/pcl-1.7/pcl/recognition/impl/hv/occlusion_reasoning.hpp
/usr/include/pcl-1.7/pcl/recognition/impl/implicit_shape_model.hpp
/usr/include/pcl-1.7/pcl/recognition/impl/line_rgbd.hpp
/usr/include/pcl-1.7/pcl/recognition/impl/linemod/
/usr/include/pcl-1.7/pcl/recognition/impl/linemod/line_rgbd.hpp
/usr/include/pcl-1.7/pcl/recognition/impl/ransac_based/
/usr/include/pcl-1.7/pcl/recognition/impl/ransac_based/simple_octree.hpp
/usr/include/pcl-1.7/pcl/recognition/impl/ransac_based/voxel_structure.hpp
/usr/include/pcl-1.7/pcl/recognition/impl/simple_octree.hpp
/usr/include/pcl-1.7/pcl/recognition/impl/voxel_structure.hpp