# GetDRRSiddonJacobsRayTracing

**URL:** https://discourse.itk.org/t/getdrrsiddonjacobsraytracing/5512
**Category:** Algorithms
**Tags:** registration, python, github, simpleitk
**Created:** [November 21, 2022, 5:04pm UTC](https://discourse.itk.org/t/getdrrsiddonjacobsraytracing/5512 "2022-11-21T17:04:00Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![YuanYang\_Deng](https://discourse.itk.org/user_avatar/discourse.itk.org/yuanyang_deng/32/3051_2.png) [@YuanYang\_Deng](https://discourse.itk.org/u/YuanYang_Deng)
#### Post date: [November 21, 2022, 5:04pm UTC](https://discourse.itk.org/t/getdrrsiddonjacobsraytracing/5512/1 "2022-11-21T17:04:00Z")

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I want to convert 3D CT images into X-ray images using DRR technology. But I don’t know how to use and run this algorithm. Did anyone run it successfully? Can you talk about how you work?  
[https://github.com/InsightSoftwareConsortium/ITKTwoProjectionRegistration/blob/master/test/GetDRRSiddonJacobsRayTracing.cxx](https://github.com/InsightSoftwareConsortium/ITKTwoProjectionRegistration/blob/master/test/GetDRRSiddonJacobsRayTracing.cxx)

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### Author: ![dzenanz](https://discourse.itk.org/user_avatar/discourse.itk.org/dzenanz/32/1093_2.png) [@dzenanz](https://discourse.itk.org/u/dzenanz)
#### Post date: [November 21, 2022, 6:15pm UTC](https://discourse.itk.org/t/getdrrsiddonjacobsraytracing/5512/2 "2022-11-21T18:15:27Z")

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@suzume @simon.rit @LucasGandel might have some comments.

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### Author: ![simon.rit](https://discourse.itk.org/letter_avatar_proxy/v4/letter/s/f08c70/32.png) [@simon.rit](https://discourse.itk.org/u/simon.rit)
#### Post date: [November 21, 2022, 7:52pm UTC](https://discourse.itk.org/t/getdrrsiddonjacobsraytracing/5512/3 "2022-11-21T19:52:03Z")

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Maybe have a look at [DigitallyReconstructedRadiograph1.cxx](https://github.com/InsightSoftwareConsortium/ITK/blob/master/Examples/Filtering/DigitallyReconstructedRadiograph1.cxx). otherwise, there are also a few options to do this with the [RTK module](https://www.openrtk.org).

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### Author: ![suzume](https://discourse.itk.org/letter_avatar_proxy/v4/letter/s/6a8cbe/32.png) [@suzume](https://discourse.itk.org/u/suzume)
#### Post date: [November 22, 2022, 12:23am UTC](https://discourse.itk.org/t/getdrrsiddonjacobsraytracing/5512/4 "2022-11-22T00:23:34Z")

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You can try [DigitallyReconstructedRadiograph1.cxx](https://github.com/InsightSoftwareConsortium/ITK/blob/master/Examples/Filtering/DigitallyReconstructedRadiograph1.cxx) and I have run it successfully.