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Date Submitted

Last Update

0008288

ITK

public

2008-12-11 11:53

2010-11-17 21:01

Reporter

Julien Michel

Assigned To

Bradley Lowekamp

Priority

normal

Severity

major

Reproducibility

always

Status

assigned

Resolution

open

Platform

OS Version

Product Version

ITK-3-10

Target Version

Fixed in Version

Summary

0008288: itk::NCCRegistrationFunction produces segfault when used in a streaming context

Description

The segmentation fault occurs in the ComputeUpdate() method when accessing to the deformation field pixels :

const DeformationPixelType vec = this->GetDeformationField()->GetPixel(index);

There is no check on index to see if it is inside the buffered region, and in a streamed context it might be off the region.

Replacing this line by :

DeformationPixelType vec;
  vec.Fill(0);
  if(this->GetDeformationField()->GetBufferedRegion().IsInside(index))
  {
    vec = this->GetDeformationField()->GetPixel(index);
  }

fixed the problem, without any changes on the non-streamed version results.

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Notes
(0023371) Hans Johnson (developer) 2010-11-17 21:01	Brad, The proposed solution does not seem appropriate for this problem. As the defacto streaming expert, would you take a look at the proposed solution? Thanks, Hans

Issue History
Date Modified	Username	Field	Change
2008-12-11 11:53	Julien Michel	New Issue
2010-11-02 13:35	Hans Johnson	Status	new => assigned
2010-11-02 13:35	Hans Johnson	Assigned To	=> kentwilliams
2010-11-17 20:59	Hans Johnson	Assigned To	kentwilliams => Bradley Lowekamp
2010-11-17 21:01	Hans Johnson	Note Added: 0023371