<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"><base href="x-msg://1415/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hello,<div><br></div><div>You system lockup is likely due to memory exhaustion, and excessive thrashing. System lockup it typical of when running you of memory for an task.</div><div><br></div><div>I had a version of the MultiScaleHessian that was streamable. I haven't used it for a while not, and don't know what the state of it is after ITKv4.</div><div><a href="http://review.source.kitware.com/#/c/890/">http://review.source.kitware.com/#/c/890/</a></div><div><br></div><div>You have a couple other options:</div><div><br></div><div>1) Find smaller regions of interest. That is just don't run on the whole image at once.</div><div>2) For each scale stream your metric to disk. This is the way I recently did it. I was able to batch each scale out to a cluster node. And them perform on analysis on the scalar images in SimpleITK.</div><div><br></div><div>Those on my quick suggestions.</div><div><br></div><div>Good luck,</div><div>Brad</div><div><br></div><div><br><div><div>On Dec 9, 2013, at 2:20 PM, Ben Alpert <<a href="mailto:balpert@numira.com">balpert@numira.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div lang="EN-US" link="blue" vlink="purple" style="font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div class="WordSection1" style="page: WordSection1; "><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">Hi,<o:p></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">I have seen a few threads on this topic but I am still not sure what the best approach is. I am trying to enhance vessels using the MultiScaleHessianBasedMeasureImageFilter and Hessian3DToVesselnessMeasureImageFilter framework. When running the filters on a large enough volume, my system locks up, so there seems to be some exception handling issue since I would at least expect an error message in this case.<o:p></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">I understand that the HessianRecursiveGaussianImageFilter is not streamable and I have seen that a discrete version is available (<a href="https://github.com/blowekamp/itkLocalDiscreteHessian" style="color: purple; text-decoration: underline; ">https://github.com/blowekamp/itkLocalDiscreteHessian</a>), but I am not sure how to integrate it with the MultiScaleHessian framework. Did anyone have any experience with this?<o:p></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">Also, other than for visualization/UI purposes, is there any advantage in using tubetk, as it is essentially built on itk?<o:p></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">Any help is appreciated.<o:p></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">Thanks,<o:p></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">Ben<o:p></o:p></div></div>_____________________________________<br>Powered by<span class="Apple-converted-space"> </span><a href="http://www.kitware.com" style="color: purple; text-decoration: underline; ">www.kitware.com</a><br><br>Visit other Kitware open-source projects at<br><a href="http://www.kitware.com/opensource/opensource.html" style="color: purple; text-decoration: underline; ">http://www.kitware.com/opensource/opensource.html</a><br><br>Kitware offers ITK Training Courses, for more information visit:<br><a href="http://www.kitware.com/products/protraining.php" style="color: purple; text-decoration: underline; ">http://www.kitware.com/products/protraining.php</a><br><br>Please keep messages on-topic and check the ITK FAQ at:<br><a href="http://www.itk.org/Wiki/ITK_FAQ" style="color: purple; text-decoration: underline; ">http://www.itk.org/Wiki/ITK_FAQ</a><br><br>Follow this link to subscribe/unsubscribe:<br><a href="http://www.itk.org/mailman/listinfo/insight-users" style="color: purple; text-decoration: underline; ">http://www.itk.org/mailman/listinfo/insight-users</a><br></div></blockquote></div><br></div></body></html>