DGtal 1.3.0
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Typedefs | Functions
greedy-plane-segmentation-ex2.cpp File Reference
#include <iostream>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include "DGtal/base/Common.h"
#include "DGtal/io/readers/VolReader.h"
#include "DGtal/io/Display3D.h"
#include "DGtal/io/viewers/Viewer3D.h"
#include "DGtal/io/DrawWithDisplay3DModifier.h"
#include "DGtal/images/ImageSelector.h"
#include "DGtal/images/imagesSetsUtils/SetFromImage.h"
#include "DGtal/topology/DigitalSurface.h"
#include "DGtal/topology/DigitalSetBoundary.h"
#include "DGtal/graph/BreadthFirstVisitor.h"
#include "DGtal/geometry/surfaces/COBANaivePlaneComputer.h"
#include "DGtal/helpers/StdDefs.h"
#include "ConfigExamples.h"

Go to the source code of this file.

Typedefs

typedef DGtal::int64_t InternalInteger
 
typedef COBANaivePlaneComputer< Z3, InternalIntegerNaivePlaneComputer
 
typedef DigitalSetBoundary< KSpace, DigitalSetMyDigitalSurfaceContainer
 
typedef DigitalSurface< MyDigitalSurfaceContainerMyDigitalSurface
 
typedef MyDigitalSurface::ConstIterator ConstIterator
 
typedef MyDigitalSurface::Vertex Vertex
 
typedef MyDigitalSurface::SurfelSet SurfelSet
 
typedef SurfelSet::iterator SurfelSetIterator
 
typedef BreadthFirstVisitor< MyDigitalSurfaceVisitor
 

Functions

bool operator< (const VertexSize &vs1, const VertexSize &vs2)
 
int main (int argc, char **argv)
 [greedy-plane-segmentation-ex2-typedefs] More...
 

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/.

Author
Jacques-Olivier Lachaud (jacqu.nosp@m.es-o.nosp@m.livie.nosp@m.r.la.nosp@m.chaud.nosp@m.@uni.nosp@m.v-sav.nosp@m.oie..nosp@m.fr ) Laboratory of Mathematics (CNRS, UMR 5127), University of Savoie, France
Date
2012/10/01

An example file named greedy-plane-segmentation-ex2.

This file is part of the DGtal library.

Definition in file greedy-plane-segmentation-ex2.cpp.

Typedef Documentation

◆ ConstIterator

◆ InternalInteger

◆ MyDigitalSurface

◆ MyDigitalSurfaceContainer

◆ NaivePlaneComputer

◆ SurfelSet

◆ SurfelSetIterator

typedef SurfelSet::iterator SurfelSetIterator

◆ Vertex

Definition at line 94 of file greedy-plane-segmentation-ex2.cpp.

◆ Visitor

Function Documentation

◆ main()

int main ( int  argc,
char **  argv 
)

[greedy-plane-segmentation-ex2-typedefs]

[greedy-plane-segmentation-ex2-parseCommandLine]

[greedy-plane-segmentation-ex2-parseCommandLine]

[greedy-plane-segmentation-ex2-loadVolume]

[greedy-plane-segmentation-ex2-loadVolume]

[greedy-plane-segmentation-ex2-makeSurface]

[greedy-plane-segmentation-ex2-makeSurface]

[greedy-plane-segmentation-ex2-segment]

[greedy-plane-segmentation-ex2-segment]

[greedy-plane-segmentation-ex2-visualization]

[greedy-plane-segmentation-ex2-visualization]

[greedy-plane-segmentation-ex2-freeMemory]

[greedy-plane-segmentation-ex2-freeMemory]

Definition at line 123 of file greedy-plane-segmentation-ex2.cpp.

124{
126 trace.info() << "Segments the surface at given threshold within given volume into digital planes of rational width num/den." << std::endl;
127 // Setting default options: ----------------------------------------------
128 // input file used:
129 string inputFilename = examplesPath + "samples/Al.100.vol" ;
130 trace.info() << "input file used " << inputFilename << std::endl;
131 // parameter threshold
132 unsigned int threshold = 0;
133 trace.info() << "the value that defines the isosurface in the image (an integer between 0 and 255)= " << threshold<< std::endl;
134 // parameter widthNum
135 unsigned int widthNum = 1;
136 trace.info() << "the numerator of the rational width (a non-null integer) =" << widthNum<< std::endl;
137 // parameter widthDen
138 unsigned int widthDen = 1;
139 trace.info() << "the denominator of the rational width (a non-null integer)= " << widthDen<< std::endl;
141
143 QApplication application(argc,argv);
145 Image image = VolReader<Image>::importVol(inputFilename);
146 DigitalSet set3d (image.domain());
147 SetFromImage<DigitalSet>::append<Image>(set3d, image, threshold,255);
149
151 trace.beginBlock( "Set up digital surface." );
152 // We initializes the cellular grid space used for defining the
153 // digital surface.
154 KSpace ks;
155 bool ok = ks.init( set3d.domain().lowerBound(),
156 set3d.domain().upperBound(), true );
157 if ( ! ok ) std::cerr << "[KSpace.init] Failed." << std::endl;
158 SurfelAdjacency<KSpace::dimension> surfAdj( true ); // interior in all directions.
159 MyDigitalSurfaceContainer* ptrSurfContainer =
160 new MyDigitalSurfaceContainer( ks, set3d, surfAdj );
161 MyDigitalSurface digSurf( ptrSurfContainer ); // acquired
162 trace.endBlock();
164
166 Point p;
167 Dimension axis;
168 unsigned int j = 0;
169 unsigned int nb = digSurf.size();
170
171 // First pass to find biggest planes.
172 trace.beginBlock( "1) Segmentation first pass. Computes all planes so as to sort vertices by the plane size." );
173 std::map<Vertex,unsigned int> v2size;
174 NaivePlaneComputer planeComputer;
175 std::priority_queue<VertexSize> Q;
176 for ( ConstIterator it = digSurf.begin(), itE= digSurf.end(); it != itE; ++it )
177 {
178 if ( ( (++j) % 50 == 0 ) || ( j == nb ) ) trace.progressBar( j, nb );
179 Vertex v = *it;
180 axis = ks.sOrthDir( v );
181 planeComputer.init( axis, 500, widthNum, widthDen );
182 // The visitor takes care of all the breadth-first traversal.
183 Visitor visitor( digSurf, v );
184 while ( ! visitor.finished() )
185 {
186 Visitor::Node node = visitor.current();
187 v = node.first;
188 axis = ks.sOrthDir( v );
189 p = ks.sCoords( ks.sDirectIncident( v, axis ) );
190 bool isExtended = planeComputer.extend( p );
191 if ( isExtended )
192 // surfel is in plane.
193 visitor.expand();
194 else // surfel is not in plane and should not be used in the visit.
195 visitor.ignore();
196 }
197 Q.push( VertexSize( v, planeComputer.size() ) );
198 }
199 trace.endBlock();
200
201 trace.beginBlock( "2) Segmentation second pass. Visits vertices from the one with biggest plane to the one with smallest plane." );
202 std::set<Vertex> processedVertices;
203 std::vector<SegmentedPlane*> segmentedPlanes;
204 std::map<Vertex,SegmentedPlane*> v2plane;
205 j = 0;
206 while ( ! Q.empty() )
207 {
208 if ( ( (++j) % 50 == 0 ) || ( j == nb ) ) trace.progressBar( j, nb );
209 Vertex v = Q.top().v;
210 Q.pop();
211 if ( processedVertices.find( v ) != processedVertices.end() ) // already in set
212 continue; // process to next vertex
213
214 SegmentedPlane* ptrSegment = new SegmentedPlane;
215 segmentedPlanes.push_back( ptrSegment ); // to delete them afterwards.
216 axis = ks.sOrthDir( v );
217 ptrSegment->plane.init( axis, 500, widthNum, widthDen );
218 // The visitor takes care of all the breadth-first traversal.
219 Visitor visitor( digSurf, v );
220 while ( ! visitor.finished() )
221 {
222 Visitor::Node node = visitor.current();
223 v = node.first;
224 if ( processedVertices.find( v ) == processedVertices.end() )
225 { // Vertex is not in processedVertices
226 axis = ks.sOrthDir( v );
227 p = ks.sCoords( ks.sDirectIncident( v, axis ) );
228 bool isExtended = ptrSegment->plane.extend( p );
229 if ( isExtended )
230 { // surfel is in plane.
231 processedVertices.insert( v );
232 v2plane[ v ] = ptrSegment;
233 visitor.expand();
234 }
235 else // surfel is not in plane and should not be used in the visit.
236 visitor.ignore();
237 }
238 else // surfel is already in some plane.
239 visitor.ignore();
240 }
241 // Assign random color for each plane.
242 ptrSegment->color = Color( rand() % 256, rand() % 256, rand() % 256, 255 );
243 }
244 trace.endBlock();
246
248 Viewer3D<> viewer( ks );
249 viewer.show();
250 for ( std::map<Vertex,SegmentedPlane*>::const_iterator
251 it = v2plane.begin(), itE = v2plane.end();
252 it != itE; ++it )
253 {
254 viewer << CustomColors3D( it->second->color, it->second->color );
255 viewer << ks.unsigns( it->first );
256 }
257 viewer << Viewer3D<>::updateDisplay;
259
261 for ( std::vector<SegmentedPlane*>::iterator
262 it = segmentedPlanes.begin(), itE = segmentedPlanes.end();
263 it != itE; ++it )
264 delete *it;
265 segmentedPlanes.clear();
266 v2plane.clear();
268
269 return application.exec();
270}
Aim: This class is useful to perform a breadth-first exploration of a graph given a starting point or...
std::pair< Vertex, Data > Node
FIXME.
void init(Dimension axis, InternalInteger diameter, InternalInteger widthNumerator=NumberTraits< InternalInteger >::ONE, InternalInteger widthDenominator=NumberTraits< InternalInteger >::ONE)
bool extend(const Point &p)
Structure representing an RGB triple with alpha component.
Definition: Color.h:68
Aim: A model of CDigitalSurfaceContainer which defines the digital surface as the boundary of a given...
Aim: A wrapper class around a STL associative container for storing sets of digital points within som...
Aim: Represents a set of n-1-cells in a nD space, together with adjacency relation between these cell...
Aim: implements association bewteen points lying in a digital domain and values.
Definition: Image.h:70
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.
Dimension sOrthDir(const SCell &s) const
Given a signed surfel [s], returns its orthogonal direction (ie, the coordinate where the surfel is c...
Cell unsigns(const SCell &p) const
Creates an unsigned cell from a signed one.
Point sCoords(const SCell &c) const
Return its digital coordinates.
SCell sDirectIncident(const SCell &p, Dimension k) const
Return the direct incident cell of [p] along [k] (the incident cell along [k])
static Dimension size()
Aim: Represent adjacencies between surfel elements, telling if it follows an interior to exterior ord...
void beginBlock(const std::string &keyword="")
std::ostream & info()
void progressBar(const double currentValue, const double maximalValue)
double endBlock()
MyDigitalSurface::ConstIterator ConstIterator
DigitalSetBoundary< KSpace, DigitalSet > MyDigitalSurfaceContainer
DGtal::uint32_t Dimension
Definition: Common.h:137
Trace trace
Definition: Common.h:154
ImageContainerBySTLVector< Domain, Value > Type
Definition: ImageSelector.h:78
Aim: Define utilities to convert a digital set into an image.
Definition: SetFromImage.h:64
static ImageContainer importVol(const std::string &filename, const Functor &aFunctor=Functor())
TriMesh::Vertex Vertex

References DGtal::DigitalSurface< TDigitalSurfaceContainer >::begin(), DGtal::Trace::beginBlock(), DGtal::BreadthFirstVisitor< TGraph, TMarkSet >::current(), DGtal::DigitalSetByAssociativeContainer< TDomain, TContainer >::domain(), DGtal::DigitalSurface< TDigitalSurfaceContainer >::end(), DGtal::Trace::endBlock(), DGtal::BreadthFirstVisitor< TGraph, TMarkSet >::expand(), DGtal::COBANaivePlaneComputer< TSpace, TInternalInteger >::extend(), DGtal::BreadthFirstVisitor< TGraph, TMarkSet >::finished(), DGtal::BreadthFirstVisitor< TGraph, TMarkSet >::ignore(), DGtal::VolReader< TImageContainer, TFunctor >::importVol(), DGtal::Trace::info(), DGtal::KhalimskySpaceND< dim, TInteger >::init(), DGtal::COBANaivePlaneComputer< TSpace, TInternalInteger >::init(), DGtal::Trace::progressBar(), DGtal::KhalimskySpaceND< dim, TInteger >::sCoords(), DGtal::KhalimskySpaceND< dim, TInteger >::sDirectIncident(), DGtal::Viewer3D< TSpace, TKSpace >::show(), DGtal::COBANaivePlaneComputer< TSpace, TInternalInteger >::size(), DGtal::DigitalSurface< TDigitalSurfaceContainer >::size(), DGtal::KhalimskySpaceND< dim, TInteger >::sOrthDir(), DGtal::trace, and DGtal::KhalimskySpaceND< dim, TInteger >::unsigns().

◆ operator<()

bool operator< ( const VertexSize &  vs1,
const VertexSize &  vs2 
)
inline
Examples
geometry/surfaces/greedy-plane-segmentation-ex2.cpp.

Definition at line 115 of file greedy-plane-segmentation-ex2.cpp.

116{
117 return vs1.size < vs2.size;
118}