[Insight-users] 3d FEM registration

[Vincent Magnotta]

Stephen,

It appears that the program is attempting to read an invalid image. Please
check the parameter file is specifying a valid filename. You may also want
to try flipping the dos directory marker, ³\², to a unix directory marker,
³/², and see if this fixes the problem.

Vince



On 4/8/10 1:53 PM, "Stephen Yip" <stephen.fyip1 at gmail.com> wrote:

> Hi, 
> 
> I am using DeformableRegsitration11.cxx to compute 3D image registration. Does
> anyone know how I may fix the problem?
> 
> I keep getting the error message:
> Reading config file...A3.txt
> Example configured. E 3 rho 3
>  reading moving  
>  reading fixed  
> Exception caught during reference file reading 
> 
> Below is what I have in my parameter file.
> 
> itk::ImageFileReaderException (015BF9CC)
> Location: "void __thiscall itk::ImageFileReader<class itk::Image<unsigned
> char,3>,class itk::DefaultConvertPixelTraits<unsigned char>
> >::GenerateOutputInformation(void)" 
> File: c:\itk\src\code\io\itkImageFileReader.txx
> Line: 100 
> Description: FileName must be specified
> 
> 
> 
> % Parameters for the single- or multi-resolution techniques
> % ---------------------------------------------------------
> 1    % Number of levels in the multi-res pyramid (1 = single-res)
> 1    % Highest level to use in the pyramid
> 1 1 1       % Scaling at lowest level of pyramid
> 3 3 3        % Number of pixels per element
> 1.e4 1.e4 1.e4         % Elasticity (E)
> 1.e5 1.e5 1.e5     % Density x capacity (RhoC)
> 1    % Image energy scaling (gamma) - sets gradient step size  3 3 3    %
> NumberOfIntegrationPoints
> 3    % WidthOfMetricRegion
> 30   % MaximumIterations
> 
> % -------------------------------
> % Parameters for the registration
> % -------------------------------
> 0 0.99  % Similarity metric (0=mean sq, 1 = ncc, 2=pattern int, 3=MI,
> 5=demons)
> 1.0    % Alpha
> 0    % DescentDirection (1 = max, 0 = min)
> 0    % DoLineSearch (0=never, 1=always, 2=if needed)
> 1.e1    % TimeStep
> 0.5     % Landmark variance
> 0       % Employ regridding / enforce diffeomorphism ( >= 1 -> true)
> % ----------------------------------
> % Information about the image inputs
> % ----------------------------------
> 101 % Nx (image x dimension)
> 101    % Ny (image y dimension)
> 30     % Nz (image z dimension - not used if 2D)
> G:\ITK_test\deform11\deform11\Debug\A.hdr  % ReferenceFileName
> G:\ITK_test\deform11\deform11\Debug\B.hdr  % TargetFileName
> % -------------------------------------------------------------------
> % The actions below depend on the values of the flags preceding them.
> % For example, to write out the displacement fields, you have to set
> % the value of WriteDisplacementField to 1.
> % -------------------------------------------------------------------
> 0    % UseLandmarks? - read the file name below if this is true
> -    % LandmarkFileName
> G:\ITK_test\deform11\deform11\Debug\D                      % ResultsFileName
> (prefix only)
> 1       % WriteDisplacementField?
> G:\ITK_test\deform11\deform11\Debug\D                        %
> DisplacementsFileName (prefix only)
> 0       % ReadMeshFile?
> -                                      % MeshFileName
> END
> 
> 
> 
> 
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----------------------
Associate Professor
Department of Radiology
0453-D JCP
200 Hawkins Drive
Iowa City, IA 52242
E-mail: vincent-magnotta at uiowa.edu
Phone: 319-356-8255 Fax: 319-353-6275
Website: http://www.radiology.uiowa.edu



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