Perception of object shape in computer graphic displays

Citation
Ra. Browse et al., Perception of object shape in computer graphic displays, J ELECTR IM, 10(1), 2001, pp. 181-187
Citations number
20
Categorie Soggetti
Optics & Acoustics
Journal title
JOURNAL OF ELECTRONIC IMAGING
ISSN journal
10179909 → ACNP
Volume
10
Issue
1
Year of publication
2001
Pages
181 - 187
Database
ISI
SICI code
1017-9909(200101)10:1<181:POOSIC>2.0.ZU;2-X
Abstract
Three-dimensional computer graphic displays contain the information that vi ewers use to understand the shapes of depicted objects. We have devised tec hniques for carrying out experiments that examine the factors that influenc e the accuracy of this shape understanding. We construct simple convex obje cts using the superquadric equation. The objects are graphically rendered a nd displayed in rotation in a variety of perceptual tasks. In this paper, w e summarize the results of our previous experiments that examined the relat ive contribution of shading and occluding contour, and the effects of inclu ding specular reflectance. We also report experiments designed to determine the influence that light source direction and surface striping have on sha pe understanding. (C) 2001 SPIE and IS&T.