cvrbfplane.cpp

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#include "cvrbfplane.h"
#include "cvfastsigmoid.h"
#include <iostream>
#include <sstream>

using namespace std;

// Constructors/Destructors
//  
CvRBFPlane::CvRBFPlane  (std::string id, CvSize fmapsz, CvSize neurosz)
        : CvGenericPlane(id, fmapsz, neurosz) 
{
        // Init weights for the neuron of RBF plane
        m_weight.resize( neurosz.height*neurosz.width );

}

CvRBFPlane::~CvRBFPlane ( ) 
{ 
}

//  
// Methods
//  

CvMat * CvRBFPlane::fprop ()
{
        assert( m_connected );

        if (!m_connected)
        {
#ifdef DEBUG
                cout << "CvRBFPlane::fprop(): Not connected!" << endl;
#endif
                return NULL;
        }

        for (int y=0; y<m_fmapsz.height; y++)
        {
                for (int x=0; x<m_fmapsz.width; x++)
                {
        
                        double sum = 0.0; 
                        int w = 0;
                        for (int i = 0; i < m_pplane.size(); i++)
                        {
                                CvMat *fmap = m_pfmap[i];
                                assert( cvGetSize(fmap).height >= y+m_neurosz.height
                                        && cvGetSize(fmap).width >= x+m_neurosz.width );
                                
                                for (int j=0; j<m_neurosz.height; j++)
                                {
                                        for (int k=0; k<m_neurosz.width; k++)
                                        {
                                                double dist = (m_weight[w++]-cvmGet(fmap, y+j, x+k));
                                                sum += dist*dist;
                                        }
                                }
                        }

                        // Sigmoid
                        double val = DQstdsigmoid(sum);

                        // Update the value at feature map
                        cvmSet(m_fmap,y,x,val);
                }
        }

        return m_fmap;
}


string CvRBFPlane::toString ( ) 
{
        ostringstream xml;
        xml << "\t<plane id=\"" << m_id << "\" type=\"rbf\" featuremapsize=\"" << m_fmapsz.width << "x" << m_fmapsz.height << "\" neuronsize=\"" << m_neurosz.width << "x" << m_neurosz.height << "\">" << endl;

        int windowsz = m_neurosz.height*m_neurosz.width;
        
        // Print weights
        for (int i=0; i <m_pplane.size(); i++)
        {
                xml << "\t\t<connection to=\"" << m_pplane[i]->getid() << "\"> ";
                for (int j=0;j<windowsz; j++)
                {
                                xml << m_weight[j+i*windowsz] << " ";
                }
                xml << "</connection>" << endl;
        }
        xml << "\t</plane>" << endl;
        
        return xml.str();
}

int CvRBFPlane::setweight(std::vector<double> &weights)
{       
        // Check that the number of weights passed is sane
        if (weights.size() != m_neurosz.width*m_neurosz.height*m_pplane.size())
                return 0;

        return CvGenericPlane::setweight(weights);
}

---