We conducted a comparative study of different stereoscopic display modalities (head-mounted display, polarized
projection, and multiview lenticular display) to evaluate their efficacy in supporting manipulation and understanding
of 3D content, specifically, in the context of neurosurgical visualization. Our study was intended to
quantify the differences in resulting task performance between these choices of display technology. The experimental
configuration involved a segmented brain vasculature and a simulated tumor. Subjects were asked to
manipulate the vasculature and a pen-like virtual probe in order to define a vessel-free path from cortical surface
to 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 conditions.
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 by
the subjects' responses to our post-test questionnaire regarding personal preferences.