Stereoscopic Display Technologies, Interaction Paradigms,and Rendering Approaches for Neurosurgical Visualization

摘要

We conducted a comparative study of different stereoscopic display modalities (head-mounted display, polarizedprojection, and multiview lenticular display) to evaluate their efficacy in supporting manipulation and under-standing of 3D content, specifically, in the context of neurosurgical visualization. Our study was intended toquantify the differences in resulting task performance between these choices of display technology. The exper-imental configuration involved a segmented brain vasculature and a simulated tumor. Subjects were asked tomanipulate the vasculature and a pen-like virtual probe in order to define a vessel-free path from cortical surfaceto the targeted tumor. Because of the anatomical complexity, defining such a path can be a challenging task. To evaluate the system, we quantified performance differences under three different stereoscopic viewing con-ditions. Our results indicate that, on average, participants achieved best performance using polarized projection,and worst with the multiview lenticular display. These quantitative measurements were further reinforced bythe subjects' responses to our post-test questionnaire regarding personal preferences.