DGtal 1.3.0
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testSphericalHoughNormalVectorEstimator.cpp File Reference
#include <iostream>
#include "DGtal/base/Common.h"
#include "ConfigTest.h"
#include "DGtalCatch.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/shapes/implicit/ImplicitHyperCube.h"
#include "DGtal/shapes/implicit/ImplicitBall.h"
#include "DGtal/shapes/GaussDigitizer.h"
#include "DGtal/topology/LightImplicitDigitalSurface.h"
#include "DGtal/topology/DigitalSurface.h"
#include "DGtal/topology/CanonicSCellEmbedder.h"
#include "DGtal/base/BasicFunctors.h"
#include "DGtal/geometry/volumes/distance/LpMetric.h"
#include "DGtal/geometry/surfaces/estimation/LocalEstimatorFromSurfelFunctorAdapter.h"
#include "DGtal/geometry/surfaces/estimation/estimationFunctors/SphericalHoughNormalVectorEstimator.h"
#include "DGtal/io/boards/Board3D.h"

Go to the source code of this file.


 TEST_CASE ("Testing SphericalHoughNormalVectorEstimator")

Detailed Description

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

David Coeurjolly (david.nosp@m..coe.nosp@m.urjol.nosp@m.ly@l.nosp@m.iris..nosp@m.cnrs.nosp@m..fr ) Laboratoire d'InfoRmatique en Image et Systemes d'information - LIRIS (CNRS, UMR 5205), CNRS, France

Functions for testing class SphericalHoughNormalVectorEstimator.

This file is part of the DGtal library.

Definition in file testSphericalHoughNormalVectorEstimator.cpp.

Function Documentation


TEST_CASE ( "Testing SphericalHoughNormalVectorEstimator"  )

Definition at line 62 of file testSphericalHoughNormalVectorEstimator.cpp.

65 typedef GaussDigitizer<Space,Shape> Gauss;
67 typedef LightImplicitDigitalSurface<KSpace,Gauss> SurfaceContainer;
69 typedef Surface::Surfel Surfel;
72 Point p1( -50, -50, -50 );
73 Point p2( 50, 50, 50 );
74 KSpace K;
75 REQUIRE( K.init( p1, p2, true ) );
78 //Shape
79 Shape shape(RealPoint::diagonal(0.0), 10.0 );
80 Gauss gauss;
81 gauss.attach(shape);
82 gauss.init(p1,p2,1.0);
84 //Surface
85 Surfel bel = Surfaces<KSpace>::findABel( K, gauss, 10000 );
86 SurfaceContainer* surfaceContainer = new SurfaceContainer( K, gauss, SurfelAdjacency<KSpace::dimension>( true ), bel );
87 Surface surface( surfaceContainer ); // acquired
91 typedef functors::ConstValue<double> ConstFunctor;
92 typedef LocalEstimatorFromSurfelFunctorAdapter<SurfaceContainer, LpMetric<Z3i::Space>, SphericalHough, ConstFunctor> Reporter;
94 CanonicSCellEmbedder<KSpace> embedder(surface.container().space());
95 SphericalHough estimator(embedder,1.0 , 0.001, 1000 , 10, 1);
98 ConstFunctor constFunc(1.0);
99 Reporter reporter(surface, l2, estimator , constFunc);
100 reporter.attach(surface);
101 reporter.setParams(l2, estimator , constFunc, 10.0);
102 reporter.init(1, surface.begin(),surface.end());
104 REQUIRE( reporter.isValid() );
106 typedef Reporter::Quantity Quantity;
108 Quantity result = reporter.eval( surface.begin() );
109 trace.info() << "Result at begin = "<< result <<std::endl;
111 //true normal (implicitBall)
112 RealPoint res = embedder( *(surface.begin()) ).getNormalized();
113 trace.info() << "Expecting = "<< res <<std::endl;
115 REQUIRE( std::abs(result.dot(res)) > 0.9 );
119 int argc=0;
120 char **argv;
121 QApplication application(argc,argv);
123 viewer.show();
124 for(Surface::ConstIterator it = surface.begin(), itend=surface.end(); it != itend ;
125 ++it)
126 {
127 Quantity normal = reporter.eval( it );
128 viewer << CustomColors3D( DGtal::Color(static_cast<unsigned char>(255*abs(normal[0])),
129 static_cast<unsigned char>(255*abs(normal[1])),
130 static_cast<unsigned char>(255*abs(normal[2]))),
131 DGtal::Color(static_cast<unsigned char>(255*abs(normal[0])),
132 static_cast<unsigned char>(255*abs(normal[1])),
133 static_cast<unsigned char>(255*abs(normal[2]))));
135 viewer << K.unsigns(*it) ;
137 Point center = K.sCoords ( *it );
138 }
139 viewer<< Viewer3D<>::updateDisplay;
140 application.exec();
Structure representing an RGB triple with alpha component.
Definition: Color.h:68
Aim: Represents a set of n-1-cells in a nD space, together with adjacency relation between these cell...
DigitalSurfaceContainer::Surfel Surfel
DigitalSurfaceContainer::SurfelConstIterator ConstIterator
Aim: A class for computing the Gauss digitization of some Euclidean shape, i.e. its intersection with...
Aim: model of CEuclideanOrientedShape and CEuclideanBoundedShape concepts to create a ball in nD....
Definition: ImplicitBall.h:65
Aim: This class is a model of CCellularGridSpaceND. It represents the cubical grid as a cell complex,...
bool init(const Point &lower, const Point &upper, bool isClosed)
Specifies the upper and lower bounds for the maximal cells in this space.
Cell unsigns(const SCell &p) const
Creates an unsigned cell from a signed one.
Point sCoords(const SCell &c) const
Return its digital coordinates.
Aim: A model of CDigitalSurfaceContainer which defines the digital surface as the boundary of an impl...
Aim: this class adapts any local functor on digital surface element to define a local estimator....
Aim: implements l_p metrics.
Definition: LpMetric.h:75
PointVector< dim, double, std::array< double, dim > > getNormalized() const
static Self diagonal(Component val=1)
static SCell findABel(const KSpace &K, const PointPredicate &pp, unsigned int nbtries=1000)
Aim: Represent adjacencies between surfel elements, telling if it follows an interior to exterior ord...
std::ostream & info()
Aim: Define a simple functor that returns a constant value (0 by default).
Aim: This functor estimates normal vector for a collection of surfels using spherical accumulator bas...
SH3::DigitalSurface Surface
Point center(const std::vector< Point > &points)
Trace trace
Definition: Common.h:154
Aim: A trivial embedder for signed cell, which corresponds to the canonic injection of cell centroids...
Represents a signed cell in a cellular grid space by its Khalimsky coordinates and a boolean value.
Astroid2D< Space > Shape
KSpace K

References DGtal::PointVector< dim, TEuclideanRing, TContainer >::diagonal(), DGtal::Surfaces< TKSpace >::findABel(), DGtal::Trace::info(), DGtal::KhalimskySpaceND< dim, TInteger >::init(), K, REQUIRE(), DGtal::KhalimskySpaceND< dim, TInteger >::sCoords(), DGtal::Viewer3D< TSpace, TKSpace >::show(), DGtal::trace, and DGtal::KhalimskySpaceND< dim, TInteger >::unsigns().