typedef itk::VTKImageToImageFilter <ConnectorImageType> ConnectorType;
typename ConnectorType::Pointer connector = ConnectorType::New();
connector->SetInput(vv_image->GetVTKImages()[0]);
typedef itk::VTKImageToImageFilter <ConnectorImageType> ConnectorType;
typename ConnectorType::Pointer connector = ConnectorType::New();
connector->SetInput(vv_image->GetVTKImages()[0]);