PosteriorModelBuilder.h

/*
 * This file is part of the statismo library.
 *
 * Author: Marcel Luethi (marcel.luethi@unibas.ch)
 *
 * Copyright (c) 2011 University of Basel
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * Neither the name of the project's author nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */


#ifndef __POSTERIORMODELBUILDER_H_
#define __POSTERIORMODELBUILDER_H_

#include <list>
#include <vector>

#include "CommonTypes.h"
#include "Config.h"
#include "DataManager.h"
#include "ModelBuilder.h"
#include "Representer.h"
#include "StatisticalModel.h"

namespace statismo {


template <typename T>
class PosteriorModelBuilder : public ModelBuilder<T> {
  public:

    typedef Representer<T> RepresenterType;
    typedef ModelBuilder<T> Superclass;
    typedef typename Superclass::DataManagerType        DataManagerType;
    typedef typename Superclass::StatisticalModelType   StatisticalModelType;
    typedef typename RepresenterType::ValueType ValueType;
    typedef typename RepresenterType::PointType PointType;
    typedef typename StatisticalModelType::PointValueListType PointValueListType;
    typedef typename DataManagerType::DataItemListType DataItemListType;

    // Maybe at some point, we can statically define a 3x3 resp. 2x3 matrix type.
    typedef MatrixType PointCovarianceMatrixType;

    typedef typename StatisticalModelType::PointValuePairType PointValuePairType;
    typedef typename std::pair<PointValuePairType, PointCovarianceMatrixType> PointValueWithCovariancePairType;
    typedef typename std::list<PointValueWithCovariancePairType> PointValueWithCovarianceListType;

    static PosteriorModelBuilder* Create() {
        return new PosteriorModelBuilder();
    }

    void Delete() {
        delete this;
    }

    virtual ~PosteriorModelBuilder() {}

    StatisticalModelType* BuildNewModel(const DataItemListType& dataItemList,
                                        const PointValueListType& pointValues,
                                        double pointValueNoiseVariance,
                                        double noiseVariance) const;


    StatisticalModelType* BuildNewModel(const DataItemListType& DataItemList,
                                        const PointValueWithCovarianceListType& pointValuesWithCovariance,
                                        double noiseVariance) const;



    StatisticalModelType* BuildNewModelFromModel(const StatisticalModelType* model, const PointValueListType& pointValues, double pointValueNoiseVariance, bool computeScores=true) const;


    StatisticalModelType* BuildNewModelFromModel(const StatisticalModelType* model,
            const PointValueWithCovarianceListType& pointValuesWithCovariance,
            bool computeScores=true) const;

    PointValueWithCovarianceListType TrivialPointValueWithCovarianceListWithUniformNoise(const PointValueListType& pointValues,
            double pointValueNoiseVariance) const;

  private:
    PosteriorModelBuilder();
    PosteriorModelBuilder(const PosteriorModelBuilder& orig);
    PosteriorModelBuilder& operator=(const PosteriorModelBuilder& rhs);


};

} // namespace statismo

#include "PosteriorModelBuilder.hxx"

#endif /* __POSTERIORMODELBUILDER_H_ */