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SampleConsensusModelNormalSphere defines a model for 3D sphere segmentation using additional surface normal constraints. More...

#include <pcl/sample_consensus/sac_model_normal_sphere.h>

Public Types

using PointCloud = typename SampleConsensusModel< PointT >::PointCloud
using PointCloudPtr = typename SampleConsensusModel< PointT >::PointCloudPtr
using PointCloudConstPtr = typename SampleConsensusModel< PointT >::PointCloudConstPtr
using PointCloudNPtr = typename SampleConsensusModelFromNormals< PointT, PointNT >::PointCloudNPtr
using PointCloudNConstPtr = typename SampleConsensusModelFromNormals< PointT, PointNT >::PointCloudNConstPtr
using Ptr = shared_ptr< SampleConsensusModelNormalSphere< PointT, PointNT > >
using ConstPtr = shared_ptr< const SampleConsensusModelNormalSphere< PointT, PointNT > >
- Public Types inherited from pcl::SampleConsensusModelSphere< PointT >
using PointCloud = typename SampleConsensusModel< PointT >::PointCloud
using PointCloudPtr = typename SampleConsensusModel< PointT >::PointCloudPtr
using PointCloudConstPtr = typename SampleConsensusModel< PointT >::PointCloudConstPtr
using Ptr = shared_ptr< SampleConsensusModelSphere< PointT > >
using ConstPtr = shared_ptr< const SampleConsensusModelSphere< PointT > >
- Public Types inherited from pcl::SampleConsensusModel< PointT >
using PointCloud = pcl::PointCloud< PointT >
using PointCloudConstPtr = typename PointCloud::ConstPtr
using PointCloudPtr = typename PointCloud::Ptr
using SearchPtr = typename pcl::search::Search< PointT >::Ptr
using Ptr = shared_ptr< SampleConsensusModel< PointT > >
using ConstPtr = shared_ptr< const SampleConsensusModel< PointT > >
- Public Types inherited from pcl::SampleConsensusModelFromNormals< PointT, PointNT >
using PointCloudNConstPtr = typename pcl::PointCloud< PointNT >::ConstPtr
using PointCloudNPtr = typename pcl::PointCloud< PointNT >::Ptr
using Ptr = shared_ptr< SampleConsensusModelFromNormals< PointT, PointNT > >
using ConstPtr = shared_ptr< const SampleConsensusModelFromNormals< PointT, PointNT > >

Public Member Functions

SampleConsensusModelNormalSphere (const PointCloudConstPtr &cloud, bool random=false)
Constructor for base SampleConsensusModelNormalSphere. More...
SampleConsensusModelNormalSphere (const PointCloudConstPtr &cloud, const Indices &indices, bool random=false)
Constructor for base SampleConsensusModelNormalSphere. More...
~SampleConsensusModelNormalSphere ()
Empty destructor. More...
void selectWithinDistance (const Eigen::VectorXf &model_coefficients, const double threshold, Indices &inliers) override
Select all the points which respect the given model coefficients as inliers. More...
std::size_t countWithinDistance (const Eigen::VectorXf &model_coefficients, const double threshold) const override
Count all the points which respect the given model coefficients as inliers. More...
void getDistancesToModel (const Eigen::VectorXf &model_coefficients, std::vector< double > &distances) const override
Compute all distances from the cloud data to a given sphere model. More...
pcl::SacModel getModelType () const override
Return a unique id for this model (SACMODEL_NORMAL_SPHERE). More...
- Public Member Functions inherited from pcl::SampleConsensusModelSphere< PointT >
SampleConsensusModelSphere (const PointCloudConstPtr &cloud, bool random=false)
Constructor for base SampleConsensusModelSphere. More...
SampleConsensusModelSphere (const PointCloudConstPtr &cloud, const Indices &indices, bool random=false)
Constructor for base SampleConsensusModelSphere. More...
~SampleConsensusModelSphere ()
Empty destructor. More...
SampleConsensusModelSphere (const SampleConsensusModelSphere &source)
Copy constructor. More...
SampleConsensusModelSphere & operator= (const SampleConsensusModelSphere &source)
Copy constructor. More...
bool computeModelCoefficients (const Indices &samples, Eigen::VectorXf &model_coefficients) const override
Check whether the given index samples can form a valid sphere model, compute the model coefficients from these samples and store them internally in model_coefficients. More...
void getDistancesToModel (const Eigen::VectorXf &model_coefficients, std::vector< double > &distances) const override
Compute all distances from the cloud data to a given sphere model. More...
void selectWithinDistance (const Eigen::VectorXf &model_coefficients, const double threshold, Indices &inliers) override
Select all the points which respect the given model coefficients as inliers. More...
std::size_t countWithinDistance (const Eigen::VectorXf &model_coefficients, const double threshold) const override
Count all the points which respect the given model coefficients as inliers. More...
void optimizeModelCoefficients (const Indices &inliers, const Eigen::VectorXf &model_coefficients, Eigen::VectorXf &optimized_coefficients) const override
Recompute the sphere coefficients using the given inlier set and return them to the user. More...
void projectPoints (const Indices &inliers, const Eigen::VectorXf &model_coefficients, PointCloud &projected_points, bool copy_data_fields=true) const override
Create a new point cloud with inliers projected onto the sphere model. More...
bool doSamplesVerifyModel (const std::set< index_t > &indices, const Eigen::VectorXf &model_coefficients, const double threshold) const override
Verify whether a subset of indices verifies the given sphere model coefficients. More...
pcl::SacModel getModelType () const override
Return a unique id for this model (SACMODEL_SPHERE). More...
- Public Member Functions inherited from pcl::SampleConsensusModel< PointT >
SampleConsensusModel (const PointCloudConstPtr &cloud, bool random=false)
Constructor for base SampleConsensusModel. More...
SampleConsensusModel (const PointCloudConstPtr &cloud, const Indices &indices, bool random=false)
Constructor for base SampleConsensusModel. More...
virtual ~SampleConsensusModel ()
Destructor for base SampleConsensusModel. More...
virtual void getSamples (int &iterations, Indices &samples)
Get a set of random data samples and return them as point indices. More...
virtual void setInputCloud (const PointCloudConstPtr &cloud)
Provide a pointer to the input dataset. More...
PointCloudConstPtr getInputCloud () const
Get a pointer to the input point cloud dataset. More...
void setIndices (const IndicesPtr &indices)
Provide a pointer to the vector of indices that represents the input data. More...
void setIndices (const Indices &indices)
Provide the vector of indices that represents the input data. More...
IndicesPtr getIndices () const
Get a pointer to the vector of indices used. More...
const std::string & getClassName () const
Get a string representation of the name of this class. More...
unsigned int getSampleSize () const
Return the size of a sample from which the model is computed. More...
unsigned int getModelSize () const
Return the number of coefficients in the model. More...
void setRadiusLimits (const double &min_radius, const double &max_radius)
Set the minimum and maximum allowable radius limits for the model (applicable to models that estimate a radius) More...
void getRadiusLimits (double &min_radius, double &max_radius) const
Get the minimum and maximum allowable radius limits for the model as set by the user. More...
void setModelConstraints (std::function< bool(const Eigen::VectorXf &)> function)
This can be used to impose any kind of constraint on the model, e.g. More...
void setSamplesMaxDist (const double &radius, SearchPtr search)
Set the maximum distance allowed when drawing random samples. More...
void getSamplesMaxDist (double &radius) const
Get maximum distance allowed when drawing random samples. More...
double computeVariance (const std::vector< double > &error_sqr_dists) const
Compute the variance of the errors to the model. More...
double computeVariance () const
Compute the variance of the errors to the model from the internally estimated vector of distances. More...
- Public Member Functions inherited from pcl::SampleConsensusModelFromNormals< PointT, PointNT >
SampleConsensusModelFromNormals ()
Empty constructor for base SampleConsensusModelFromNormals. More...
virtual ~SampleConsensusModelFromNormals ()
Destructor. More...
void setNormalDistanceWeight (const double w)
Set the normal angular distance weight. More...
double getNormalDistanceWeight () const
Get the normal angular distance weight. More...
void setInputNormals (const PointCloudNConstPtr &normals)
Provide a pointer to the input dataset that contains the point normals of the XYZ dataset. More...
PointCloudNConstPtr getInputNormals () const
Get a pointer to the normals of the input XYZ point cloud dataset. More...

Additional Inherited Members

- Protected Member Functions inherited from pcl::SampleConsensusModelSphere< PointT >
bool isModelValid (const Eigen::VectorXf &model_coefficients) const override
Check whether a model is valid given the user constraints. More...
bool isSampleGood (const Indices &samples) const override
Check if a sample of indices results in a good sample of points indices. More...
std::size_t countWithinDistanceStandard (const Eigen::VectorXf &model_coefficients, const double threshold, std::size_t i=0) const
This implementation uses no SIMD instructions. More...
- Protected Member Functions inherited from pcl::SampleConsensusModel< PointT >
SampleConsensusModel (bool random=false)
Empty constructor for base SampleConsensusModel. More...
void drawIndexSample (Indices &sample)
Fills a sample array with random samples from the indices_ vector. More...
void drawIndexSampleRadius (Indices &sample)
Fills a sample array with one random sample from the indices_ vector and other random samples that are closer than samples_radius_. More...
int rnd ()
Boost-based random number generator. More...
- Protected Attributes inherited from pcl::SampleConsensusModel< PointT >
std::string model_name_
The model name. More...
PointCloudConstPtr input_
A boost shared pointer to the point cloud data array. More...
IndicesPtr indices_
A pointer to the vector of point indices to use. More...
double radius_min_
The minimum and maximum radius limits for the model. More...
double radius_max_
double samples_radius_
The maximum distance of subsequent samples from the first (radius search) More...
SearchPtr samples_radius_search_
The search object for picking subsequent samples using radius search. More...
Indices shuffled_indices_
Data containing a shuffled version of the indices. More...
boost::mt19937 rng_alg_
Boost-based random number generator algorithm. More...
std::shared_ptr< boost::uniform_int<> > rng_dist_
Boost-based random number generator distribution. More...
std::shared_ptr< boost::variate_generator< boost::mt19937 &, boost::uniform_int<> > > rng_gen_
Boost-based random number generator. More...
std::vector< double > error_sqr_dists_
A vector holding the distances to the computed model. More...
unsigned int sample_size_
The size of a sample from which the model is computed. More...
unsigned int model_size_
The number of coefficients in the model. More...
std::function< bool(const Eigen::VectorXf &)> custom_model_constraints_
A user defined function that takes model coefficients and returns whether the model is acceptable or not. More...
- Protected Attributes inherited from pcl::SampleConsensusModelFromNormals< PointT, PointNT >
double normal_distance_weight_
The relative weight (between 0 and 1) to give to the angular distance (0 to pi/2) between point normals and the plane normal. More...
PointCloudNConstPtr normals_
A pointer to the input dataset that contains the point normals of the XYZ dataset. More...
- Static Protected Attributes inherited from pcl::SampleConsensusModel< PointT >
static const unsigned int max_sample_checks_ = 1000
The maximum number of samples to try until we get a good one. More...

Detailed Description

template<typename PointT, typename PointNT>
class pcl::SampleConsensusModelNormalSphere< PointT, PointNT >

SampleConsensusModelNormalSphere defines a model for 3D sphere segmentation using additional surface normal constraints.

Basically this means that checking for inliers will not only involve a "distance to model" criterion, but also an additional "maximum angular deviation" between the sphere's normal and the inlier points normals.

The model coefficients are defined as:

  • center.x : the X coordinate of the sphere's center
  • center.y : the Y coordinate of the sphere's center
  • center.z : the Z coordinate of the sphere's center
  • radius : radius of the sphere
Author
Stefan Schrandt

Definition at line 69 of file sac_model_normal_sphere.h.

Member Typedef Documentation

ConstPtr

template<typename PointT , typename PointNT >
using pcl::SampleConsensusModelNormalSphere< PointT, PointNT >::ConstPtr = shared_ptr<const SampleConsensusModelNormalSphere<PointT, PointNT> >

Definition at line 89 of file sac_model_normal_sphere.h.

PointCloud

template<typename PointT , typename PointNT >
using pcl::SampleConsensusModelNormalSphere< PointT, PointNT >::PointCloud = typename SampleConsensusModel<PointT>::PointCloud

Definition at line 81 of file sac_model_normal_sphere.h.

PointCloudConstPtr

template<typename PointT , typename PointNT >
using pcl::SampleConsensusModelNormalSphere< PointT, PointNT >::PointCloudConstPtr = typename SampleConsensusModel<PointT>::PointCloudConstPtr

Definition at line 83 of file sac_model_normal_sphere.h.

PointCloudNConstPtr

template<typename PointT , typename PointNT >
using pcl::SampleConsensusModelNormalSphere< PointT, PointNT >::PointCloudNConstPtr = typename SampleConsensusModelFromNormals<PointT, PointNT>::PointCloudNConstPtr

Definition at line 86 of file sac_model_normal_sphere.h.

PointCloudNPtr

template<typename PointT , typename PointNT >
using pcl::SampleConsensusModelNormalSphere< PointT, PointNT >::PointCloudNPtr = typename SampleConsensusModelFromNormals<PointT, PointNT>::PointCloudNPtr

Definition at line 85 of file sac_model_normal_sphere.h.

PointCloudPtr

template<typename PointT , typename PointNT >
using pcl::SampleConsensusModelNormalSphere< PointT, PointNT >::PointCloudPtr = typename SampleConsensusModel<PointT>::PointCloudPtr

Definition at line 82 of file sac_model_normal_sphere.h.

Ptr

template<typename PointT , typename PointNT >
using pcl::SampleConsensusModelNormalSphere< PointT, PointNT >::Ptr = shared_ptr<SampleConsensusModelNormalSphere<PointT, PointNT> >

Definition at line 88 of file sac_model_normal_sphere.h.

Constructor & Destructor Documentation

SampleConsensusModelNormalSphere() [1/2]

template<typename PointT , typename PointNT >
pcl::SampleConsensusModelNormalSphere< PointT, PointNT >::SampleConsensusModelNormalSphere ( const PointCloudConstPtr & cloud,
bool random = false
)
inline

Constructor for base SampleConsensusModelNormalSphere.

Parameters
[in] cloud the input point cloud dataset
[in] random if true set the random seed to the current time, else set to 12345 (default: false)

Definition at line 95 of file sac_model_normal_sphere.h.

References pcl::SampleConsensusModel< PointT >::model_name_, pcl::SampleConsensusModel< PointT >::model_size_, and pcl::SampleConsensusModel< PointT >::sample_size_.

SampleConsensusModelNormalSphere() [2/2]

template<typename PointT , typename PointNT >
pcl::SampleConsensusModelNormalSphere< PointT, PointNT >::SampleConsensusModelNormalSphere ( const PointCloudConstPtr & cloud,
const Indices & indices,
bool random = false
)
inline

Constructor for base SampleConsensusModelNormalSphere.

Parameters
[in] cloud the input point cloud dataset
[in] indices a vector of point indices to be used from cloud
[in] random if true set the random seed to the current time, else set to 12345 (default: false)

Definition at line 110 of file sac_model_normal_sphere.h.

References pcl::SampleConsensusModel< PointT >::model_name_, pcl::SampleConsensusModel< PointT >::model_size_, and pcl::SampleConsensusModel< PointT >::sample_size_.

~SampleConsensusModelNormalSphere()

template<typename PointT , typename PointNT >
pcl::SampleConsensusModelNormalSphere< PointT, PointNT >::~SampleConsensusModelNormalSphere ( )
inline

Empty destructor.

Definition at line 122 of file sac_model_normal_sphere.h.

Member Function Documentation

countWithinDistance()

template<typename PointT , typename PointNT >
std::size_t pcl::SampleConsensusModelNormalSphere< PointT, PointNT >::countWithinDistance ( const Eigen::VectorXf & model_coefficients,
const double threshold
) const
overridevirtual

Count all the points which respect the given model coefficients as inliers.

Parameters
[in] model_coefficients the coefficients of a model that we need to compute distances to
[in] threshold maximum admissible distance threshold for determining the inliers from the outliers
Returns
the resultant number of inliers

Implements pcl::SampleConsensusModel< PointT >.

Definition at line 110 of file sac_model_normal_sphere.hpp.

References pcl::getAngle3D(), and M_PI.

getDistancesToModel()

template<typename PointT , typename PointNT >
void pcl::SampleConsensusModelNormalSphere< PointT, PointNT >::getDistancesToModel ( const Eigen::VectorXf & model_coefficients,
std::vector< double > & distances
) const
overridevirtual

Compute all distances from the cloud data to a given sphere model.

Parameters
[in] model_coefficients the coefficients of a sphere model that we need to compute distances to
[out] distances the resultant estimated distances

Implements pcl::SampleConsensusModel< PointT >.

Definition at line 161 of file sac_model_normal_sphere.hpp.

References pcl::getAngle3D(), and M_PI.

getModelType()

template<typename PointT , typename PointNT >
pcl::SacModel pcl::SampleConsensusModelNormalSphere< PointT, PointNT >::getModelType ( ) const
inlineoverridevirtual

Return a unique id for this model (SACMODEL_NORMAL_SPHERE).

Implements pcl::SampleConsensusModel< PointT >.

Definition at line 153 of file sac_model_normal_sphere.h.

References pcl::SACMODEL_NORMAL_SPHERE.

selectWithinDistance()

template<typename PointT , typename PointNT >
void pcl::SampleConsensusModelNormalSphere< PointT, PointNT >::selectWithinDistance ( const Eigen::VectorXf & model_coefficients,
const double threshold,
Indices & inliers
)
overridevirtual

Select all the points which respect the given model coefficients as inliers.

Parameters
[in] model_coefficients the coefficients of a sphere model that we need to compute distances to
[in] threshold a maximum admissible distance threshold for determining the inliers from the outliers
[out] inliers the resultant model inliers

Implements pcl::SampleConsensusModel< PointT >.

Definition at line 49 of file sac_model_normal_sphere.hpp.

References pcl::geometry::distance(), pcl::getAngle3D(), and M_PI.


The documentation for this class was generated from the following files:

© 2009–2012, Willow Garage, Inc.
© 2012–, Open Perception, Inc.
Licensed under the BSD License.
https://pointclouds.org/documentation/classpcl_1_1_sample_consensus_model_normal_sphere.html