F. Wimmer, C. Bichlmeier, S.M. Heining, N. Navab Creating a Vision Channel for Observing Deep-Seated Anatomy in Medical Augmented Reality Proceedings of Bildverarbeitung fuer die Medizin (BVM 2008), Munich, Germany, April 2008 (bib)
	The intent of medical Augmented Reality (AR) is to augment the surgeon's real view on the patient with the patient's interior anatomy resulting from a suitable visualization of medical imaging data. This paper presents a fast and user-defined clipping technique for medical AR allowing for cutting away any parts of the virtual anatomy and images of the real part of the AR scene hindering the surgeon's view onto the deep-seated region of interest. Modeled on cut-away techniques from scientific illustrations and computer graphics, the method creates a fixed vision channel to the inside of the patient. It enables a clear view on the focussed virtual anatomy and moreover improves the perception of spatial depth.
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