int iDefaultFilterGeneration = ProcessSignal::FILTER_GENERATION_DIRECT,
int iDefaultZeropad = 3, int iDefaultInterpID = Backprojector::INTERP_LINEAR,
int iDefaultInterpParam = 1, int iDefaultBackprojectID = Backprojector::BPROJ_IDIFF,
int iDefaultFilterGeneration = ProcessSignal::FILTER_GENERATION_DIRECT,
int iDefaultZeropad = 3, int iDefaultInterpID = Backprojector::INTERP_LINEAR,
int iDefaultInterpParam = 1, int iDefaultBackprojectID = Backprojector::BPROJ_IDIFF,