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arcadelab / deepdrr

Code for "DeepDRR: A Catalyst for Machine Learning in Fluoroscopy-guided Procedures". https://arxiv.org/abs/1803.08606
GNU General Public License v3.0
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Isocenter / origin question #109

Closed fedeface98 closed 11 months ago

fedeface98 commented 12 months ago

Hello,

I have a doubt about the setting of the isocenter and the translations. For example, If i set the isocenter of the Carm in the following way: carm.move_to(isocenter_in_world = ct.center_in_world + geo.v(0,0,0)) Is it correct that I put the isocenter of the Carm in the center of the ct volume and with the term 'geo.v(0,0,0)' I am modeling the translation around the center of the ct volume? Could we see this translation as the translation between the center of the CT and the center of the generated fluoroscopy?

Thanks a lot

benjamindkilleen commented 11 months ago

The isocenter is the center of rotation of the C-arm. In many cases, this happens to correspond to the imaging center between the X-ray source and the detector center, but not necessarily. If you use the default settings for MobileCArm, then it should be the case.