• features2keypoint() : point_pose_extractor.cpp
• main() : calc_flow.cpp , white_balance_converter.cpp , virtual_camera_mono.cpp , rectangle_detector.cpp , point_pose_extractor.cpp , oriented_gradient_node.cpp , hough_lines.cpp , camshiftdemo.cpp
• PLUGINLIB_DECLARE_CLASS() : color_histogram.cpp , sparse_image_encoder.cpp , sparse_image_decoder.cpp , slic_superpixels.cpp , hough_circles.cpp , edge_detector.cpp