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/*
* Software License Agreement (BSD License)
*
* Point Cloud Library (PCL) - www.pointclouds.org
* Copyright (c) 2010-2012, Willow Garage, Inc.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
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*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
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* with the distribution.
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*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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*
* $Id$
*
*/
#pragma once
#include <pcl/recognition/cg/correspondence_grouping.h>
#include <pcl/point_cloud.h>
namespace pcl
{
/** \brief Class implementing a 3D correspondence grouping enforcing geometric consistency among feature correspondences
*
* \author Federico Tombari, Tommaso Cavallari, Aitor Aldoma
* \ingroup recognition
*/
template<typename PointModelT, typename PointSceneT>
class GeometricConsistencyGrouping : public CorrespondenceGrouping<PointModelT, PointSceneT>
{
public:
using PointCloud = pcl::PointCloud<PointModelT>;
using PointCloudPtr = typename PointCloud::Ptr;
using PointCloudConstPtr = typename PointCloud::ConstPtr;
using SceneCloudConstPtr = typename pcl::CorrespondenceGrouping<PointModelT, PointSceneT>::SceneCloudConstPtr;
/** \brief Constructor */
GeometricConsistencyGrouping ()
: gc_threshold_ (3)
, gc_size_ (1.0)
{}
/** \brief Sets the minimum cluster size
* \param[in] threshold the minimum cluster size
*/
inline void
setGCThreshold (int threshold)
{
gc_threshold_ = threshold;
}
/** \brief Gets the minimum cluster size.
*
* \return the minimum cluster size used by GC.
*/
inline int
getGCThreshold () const
{
return (gc_threshold_);
}
/** \brief Sets the consensus set resolution. This should be in metric units.
*
* \param[in] gc_size consensus set resolution.
*/
inline void
setGCSize (double gc_size)
{
gc_size_ = gc_size;
}
/** \brief Gets the consensus set resolution.
*
* \return the consensus set resolution.
*/
inline double
getGCSize () const
{
return (gc_size_);
}
/** \brief The main function, recognizes instances of the model into the scene set by the user.
*
* \param[out] transformations a vector containing one transformation matrix for each instance of the model recognized into the scene.
*
* \return true if the recognition had been successful or false if errors have occurred.
*/
bool
recognize (std::vector<Eigen::Matrix4f, Eigen::aligned_allocator<Eigen::Matrix4f> > &transformations);
/** \brief The main function, recognizes instances of the model into the scene set by the user.
*
* \param[out] transformations a vector containing one transformation matrix for each instance of the model recognized into the scene.
* \param[out] clustered_corrs a vector containing the correspondences for each instance of the model found within the input data (the same output of clusterCorrespondences).
*
* \return true if the recognition had been successful or false if errors have occurred.
*/
bool
recognize (std::vector<Eigen::Matrix4f, Eigen::aligned_allocator<Eigen::Matrix4f> > &transformations, std::vector<pcl::Correspondences> &clustered_corrs);
protected:
using CorrespondenceGrouping<PointModelT, PointSceneT>::input_;
using CorrespondenceGrouping<PointModelT, PointSceneT>::scene_;
using CorrespondenceGrouping<PointModelT, PointSceneT>::model_scene_corrs_;
/** \brief Minimum cluster size. It shouldn't be less than 3, since at least 3 correspondences are needed to compute the 6DOF pose */
int gc_threshold_;
/** \brief Resolution of the consensus set used to cluster correspondences together*/
double gc_size_;
/** \brief Transformations found by clusterCorrespondences method. */
std::vector<Eigen::Matrix4f, Eigen::aligned_allocator<Eigen::Matrix4f> > found_transformations_;
/** \brief Cluster the input correspondences in order to distinguish between different instances of the model into the scene.
*
* \param[out] model_instances a vector containing the clustered correspondences for each model found on the scene.
* \return true if the clustering had been successful or false if errors have occurred.
*/
void
clusterCorrespondences (std::vector<Correspondences> &model_instances) override;
};
}
#ifdef PCL_NO_PRECOMPILE
#include <pcl/recognition/impl/cg/geometric_consistency.hpp>
#endif