217 search results - page 21 / 44 » Lights from Highlights and Shadows |
PG
2007
IEEE
14 years 1 months ago
2007
IEEE
We describe a new, analytic approximation to the airlight integral from scattering media whose density is modeled as a sum of Gaussians. The approximation supports real-time rende...
ICCV
2003
IEEE
14 years 9 months ago
2003
IEEE
We derive a new class of photometric invariants that can be used for a variety of vision tasks including lighting invariant material segmentation, change detection and tracking, a...
ECCV
2004
Springer
14 years 9 months ago
2004
Springer
Abstract. This paper presents an algorithm for voxel-based reconstruction of objects with general reflectance properties from multiple calibrated views. It is assumed that one or m...
CVPR
1997
IEEE
13 years 11 months ago
1997
IEEE
Previous work [5], [2] have developed an approach for estimating shape and albedo from multiple images assuming Lambertian reflectance with single light sources. The main contrib...
RT
2004
Springer
14 years 27 days ago
2004
Springer
Self-shadowing is an important factor in the appearance of hair and fur. In this paper we present a new rendering algorithm to accurately compute shadowed hair at interactive rate...