[BIC-announce] FW: talk: "Depth Perception in Translucent Volumes"

[Jennifer Chew, Ms.]

FOR YOUR INFORMATION - ON BEHALF OF PROFESSOR TAL ARBEL.  Jennifer  


Speaker:   Marta Kersten,   Ph.D. student (CIM, McGill)
Title:  "Depth Perception in Translucent Volumes"
Date:  Monday,  May 14
Time and place:  1 pm,  ENGMC  437

Abstract:

In this work, we present empirical studies that consider the effects of
stereopsis and simulated aerial perspective on depth perception in
translucent volumes. We consider a purely absorptive lighting model, in
which light is not scattered or reflected, but is simply absorbed
as it passes through the volume. A purely absorptive lighting model is
used, for example, when rendering  digitally reconstructed radiographs
(DRRs), which are synthetic X-ray  images reconstructed from CT volumes.
Unlike surface rendered volumes,  however, a volume-rendered DRR lacks
depth information.
Surgeons make use of DRRs in planning and performing operations, so an
improvement of depth perception in DRRs may help diagnosis and surgical
planning. As well such empirical studies, help provide new ways  to
visualize complex volumetric data and  to explore the capabilities of
the human visual system.