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» Estimating Illumination Direction from Textured Images
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ICCV
2007
IEEE
14 years 10 months ago
Detecting Illumination in Images
In this paper we present a surprisingly simple yet powerful method for detecting illumination--determining which pixels are lit by different lights--in images. Our method is based...
Clément Fredembach, Graham D. Finlayson, Ma...
IMAGING
2001
13 years 9 months ago
Illuminating Illumination
We introduce an active imaging method to measure scene illumination. The system implementation is divided into four steps. First, the system acquires two images: one is an ordinar...
Jeffrey M. DiCarlo, Feng Xiao, Brian A. Wandell
ACCV
2007
Springer
14 years 2 months ago
Detecting and Segmenting Un-occluded Items by Actively Casting Shadows
We present a simple and practical approach for segmenting un-occluded items in a scene by actively casting shadows. By ’items’, we refer to objects (or part of objects) enclose...
Tze Ki Koh, Amit K. Agrawal, Ramesh Raskar, Steve ...
3DPVT
2006
IEEE
144views Visualization» more  3DPVT 2006»
14 years 2 months ago
Recovering Illumination and Texture Using Ratio Images
In this paper we consider the problem of factoring illumination and texture from a pair of images of a diffuse object of known geometry. This problem arises frequently in 3D photo...
Alejandro Troccoli, Peter K. Allen
PAMI
2008
203views more  PAMI 2008»
13 years 8 months ago
Free-Form Object Reconstruction from Silhouettes, Occluding Edges and Texture Edges: A Unified and Robust Operator Based on Dual
In this paper, the duality in differential form is developed between a 3D primal surface and its dual manifold formed by the surface's tangent planes, i.e., each tangent plan...
Shubao Liu, Kongbin Kang, Jean-Philippe Tarel, Dav...