meshDiffuse.h

Go to the documentation of this file.

/* This software and supporting documentation are distributed by
 *     Institut Federatif de Recherche 49
 *     CEA/NeuroSpin, Batiment 145,
 *     91191 Gif-sur-Yvette cedex
 *     France
 *
 * This software is governed by the CeCILL-B license under
 * French law and abiding by the rules of distribution of free software.
 * You can  use, modify and/or redistribute the software under the
 * terms of the CeCILL-B license as circulated by CEA, CNRS
 * and INRIA at the following URL "http://www.cecill.info".
 *
 * As a counterpart to the access to the source code and  rights to copy,
 * modify and redistribute granted by the license, users are provided only
 * with a limited warranty  and the software's author,  the holder of the
 * economic rights,  and the successive licensors  have only  limited
 * liability.
 *
 * In this respect, the user's attention is drawn to the risks associated
 * with loading,  using,  modifying and/or developing or reproducing the
 * software by the user in light of its specific status of free software,
 * that may mean  that it is complicated to manipulate,  and  that  also
 * therefore means  that it is reserved for developers  and  experienced
 * professionals having in-depth computer knowledge. Users are therefore
 * encouraged to load and test the software's suitability as regards their
 * requirements in conditions enabling the security of their systems and/or
 * data to be ensured and,  more generally, to use and operate it in the
 * same conditions as regards security.
 *
 * The fact that you are presently reading this means that you have had
 * knowledge of the CeCILL-B license and that you accept its terms.
 */
 
 
#ifndef AIMS_SCALESPACE_MESHDIFFUSE_H
#define AIMS_SCALESPACE_MESHDIFFUSE_H
 
#include <aims/config/aimsalgo_config.h>
#include <aims/mesh/texture.h>
#include <aims/mesh/curv.h>
#include <string>
 
namespace aims
{
 
 
  class TextureSmoothing
  {
 
  public : 

    //From A. Andrade...
    AIMSALGO_API 
    static void surfaceBlockSmooth( const std::string & latt_filename, 
                                    const std::string *val_filename, 
                                    const std::string & path_name, unsigned nscans, 
                                    float dt, unsigned iter, unsigned scans_block, 
                                    unsigned nodes_block, unsigned nnodes, 
                                    unsigned ncolPINV, const std::string *outfiles, const float HMAX,const float Umax);
 
 
    AIMSALGO_API 
    static void surfaceBlockSmooth( const std::string & latt_filename, 
                                    const Texture1d & tex, float dt, unsigned iter, 
                                    unsigned ncolPINV, Texture1d & outtex, 
                                    unsigned nodes_block, const float HMAX,const float Umax );
 
    AIMSALGO_API 
    static TimeTexture<float> derivative( const std::string & latt_filename, 
                                          const Texture<float> & tex, 
                                          unsigned ncolPINV );
    //... end A. Andrade
 
    // Smoothing using finite element appraoch
    // Smax is a threshold for the smoothed signal estimate
    // dt is the time increment for each iteration
    // dur is the duration of the heat equation 
    // !! dur is the TOTAL time of diffusion, not the nb of iteration as for surfaceBlockSmooth
    AIMSALGO_API 
    static Texture<float> FiniteElementSmoothing( const Texture<float> &inittex, 
                                                  float dt, float dur,
                                                  float Smax,
                                                  const std::map<unsigned, std::set< std::pair<unsigned,float> > > & weightLapl);
    
    static Texture<float> FiniteElementSmoothingWithSource( const Texture<float> &inittex, const Texture<float> &sourcetex, 
                                                            float dt, float dur,
                                                            const std::map<unsigned, std::set< std::pair<unsigned,float> > > & weightLapl);
  private : 

    AIMSALGO_API 
    static void tayd_core( const int *IND_NEIGHS, const float *PINV, 
                           const float *values, float dt, float *output, 
                           unsigned ncolPINV, unsigned nodes_iter, 
                           unsigned first_node, const float HMAX,const float Umax);
 

    AIMSALGO_API 
    static TimeTexture<float> derivative_tayd_core(  const int *IND_NEIGHS, const float *PINV, 
                                                     const float *values, 
                                                     unsigned ncolPINV, unsigned nnodes );
 
  };
 
}
 
 
#endif