S. Habert, J. Gardiazabal, P. Fallavollita, N. Navab RGBDX: first design and experimental validation of a mirror-based RGBD Xray imaging system International Symposium on Mixed and Augmented Reality (ISMAR), 2015 (bib)
	This paper presents the first design of a mirror based RGBD X-ray imaging system and includes an evaluation study of the depth errors induced by the mirror when used in combination with an infrared pattern-emission RGBD camera. Our evaluation consisted of three experiments. The first demonstrated almost no difference in depth measurements of the camera with and without the use of the mirror. The final two experiments demonstrated that there were no relative and location-specific errors induced by the mirror showing the feasibility of the RGBDX-ray imaging system. Lastly, we showcase the potential of the RGBDX-ray system towards a visualization application in which an X-ray image is fused to the 3D reconstruction of the surgical scene via the RGBD camera, using automatic C-arm pose estimation.
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