otbStereoSensorModelToElevationMapFilter.h

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/*
 * Copyright (C) 2005-2022 Centre National d'Etudes Spatiales (CNES)
 *
 * This file is part of Orfeo Toolbox
 *
 *     https://www.orfeo-toolbox.org/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef otbStereoSensorModelToElevationMapFilter_h
#define otbStereoSensorModelToElevationMapFilter_h
 
#include "itkImageToImageFilter.h"
#include "itkInterpolateImageFunction.h"
#include "otbGenericRSTransform.h"
#include "itkNormalizedCorrelationImageToImageMetric.h"
 
namespace otb
{
template <class TInputImage, class TOutputHeight>
class ITK_EXPORT StereoSensorModelToElevationFilter : public itk::ImageToImageFilter<TInputImage, TOutputHeight>
{
public:
 
  typedef StereoSensorModelToElevationFilter Self;
  typedef itk::ImageToImageFilter<TInputImage, TOutputHeight> Superclass;
  typedef itk::SmartPointer<Self>       Pointer;
  typedef itk::SmartPointer<const Self> ConstPointer;
 
  itkNewMacro(Self);
 
  itkTypeMacro(StereoSensorModelToElevationFilter, ImageToImageFilter);
 
  typedef TInputImage                          InputImageType;
  typedef typename InputImageType::PixelType   InputPixelType;
  typedef TOutputHeight                        OutputImageType;
  typedef typename OutputImageType::RegionType OutputRegionType;
  typedef typename OutputImageType::PixelType  HeightType;
  typedef typename OutputImageType::PointType  OutputPointType;
 
  typedef itk::InterpolateImageFunction<TInputImage, double> InterpolatorType;
  typedef typename InterpolatorType::Pointer InterpolatorPointerType;
  typedef GenericRSTransform<>               GenericRSTransformType;
  typedef GenericRSTransform<double, 3, 3> GenericRSTransform3DType;
  typedef itk::NormalizedCorrelationImageToImageMetric<TInputImage, TInputImage> CorrelationMetricType;
  typedef typename InputImageType::SizeType RadiusType;
 
  void SetMasterInput(const TInputImage* image);
 
  void SetSlaveInput(const TInputImage* image);
 
  const TInputImage* GetMasterInput() const;
 
  const TInputImage* GetSlaveInput() const;
 
  TOutputHeight* GetCorrelationOutput();
 
  itkSetMacro(LowerElevation, double);
 
  itkSetMacro(HigherElevation, double);
 
  itkSetMacro(ElevationStep, double);
 
  itkSetMacro(CorrelationThreshold, double);
 
  itkGetMacro(CorrelationThreshold, double);
 
  itkSetMacro(VarianceThreshold, double);
 
  itkGetMacro(VarianceThreshold, double);
 
  itkSetMacro(SubtractInitialElevation, bool);
 
  itkGetMacro(SubtractInitialElevation, bool);
 
  itkBooleanMacro(SubtractInitialElevation);
 
  void SetRadius(unsigned int radius)
  {
    m_Radius.Fill(radius);
    this->Modified();
  }
 
protected:
  StereoSensorModelToElevationFilter();
 
  ~StereoSensorModelToElevationFilter() override;
 
  void ThreadedGenerateData(const OutputRegionType& outputRegionForThread, itk::ThreadIdType threadId) override;
 
  void GenerateInputRequestedRegion(void) override;
 
  void BeforeThreadedGenerateData() override;
 
  void VerifyInputInformation() override
  {
  }
 
 
private:
  StereoSensorModelToElevationFilter(const Self&) = delete;
  void operator=(const Self&) = delete;
 
  inline double Correlation(const std::vector<double>& master, const std::vector<double>& slave) const;
 
  InterpolatorPointerType m_Interpolator;
 
  RadiusType m_Radius;
 
  double m_LowerElevation;
 
  double m_HigherElevation;
 
  double m_ElevationStep;
 
  double m_CorrelationThreshold;
 
  double m_VarianceThreshold;
 
  bool m_SubtractInitialElevation;
 
  GenericRSTransform3DType::Pointer m_MasterToSlave;
};
} // End namespace otb
 
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbStereoSensorModelToElevationMapFilter.hxx"
#endif
 
#endif