FourierEncoding.h

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/*
SyneRBI Synergistic Image Reconstruction Framework (SIRF)
Copyright 2020 - 2021 Physikalisch-Technische Bundesanstalt (PTB)
 
This is software developed for the Collaborative Computational
Project in Synergistic Reconstruction for Biomedical Imaging (formerly CCP PETMR)
(http://www.ccpsynerbi.ac.uk/).
 
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 FOURIERENCODING_H
#define FOURIERENCODING_H
 
#include "sirf/Gadgetron/gadgetron_data_containers.h"
#include "sirf/iUtilities/LocalisedException.h"
 
namespace sirf{
class FourierEncoding
{
public:
    FourierEncoding(){}
 
    virtual void forward(MRAcquisitionData& ac, const CFImage& img) const =0;
    virtual void backward(CFImage& img, const MRAcquisitionData& ac) const =0;
    
    void match_img_header_to_acquisition(CFImage& img, const ISMRMRD::Acquisition& acq) const;
};
 
class CartesianFourierEncoding : public FourierEncoding
{
public:
    CartesianFourierEncoding() : FourierEncoding() {}
 
    virtual void forward(MRAcquisitionData& ac, const CFImage& img) const;
    virtual void backward(CFImage& img, const MRAcquisitionData& ac) const;
    
};
 
} // namespace sirf
#endif // FOURIERENCODING_H