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IJCV
2002
102views more  IJCV 2002»
13 years 11 months ago
Relighting with the Reflected Irradiance Field: Representation, Sampling and Reconstruction
Image-based relighting (IBL) is a technique to change the illumination of an image-based object/scene. In this paper, we define a representation called the reflected irradiance fi...
Zhouchen Lin, Tien-Tsin Wong, Heung-Yeung Shum
MMSEC
2005
ACM
129views Multimedia» more  MMSEC 2005»
14 years 5 months ago
Exposing digital forgeries by detecting inconsistencies in lighting
When creating a digital composite of, for example, two people standing side-by-side, it is often difficult to match the lighting conditions from the individual photographs. Lighti...
Micah K. Johnson, Hany Farid
CRV
2006
IEEE
69views Robotics» more  CRV 2006»
14 years 5 months ago
Photometric Stereo with Nearby Planar Distributed Illuminants
This paper considers the problem of shape-from-shading using nearby planar distributed illuminants. It is shown that a rectangular planar nearby distributed uniform isotropic illu...
James J. Clark
ICCV
2007
IEEE
15 years 1 months ago
Coplanar Shadowgrams for Acquiring Visual Hulls of Intricate Objects
Acquiring 3D models of intricate objects (like tree branches, bicycles and insects) is a hard problem due to severe self-occlusions, repeated thin structures and surface discontin...
Shuntaro Yamazaki, Srinivasa G. Narasimhan, Simon ...
CVPR
2008
IEEE
15 years 1 months ago
Characterizing the shadow space of camera-light pairs
We present a theoretical analysis for characterizing the shadows cast by a point light source given its relative position to the camera. In particular, we analyze the epipolar geo...
Daniel A. Vaquero, Matthew Turk, Ramesh Raskar, Ro...
CVPR
2003
IEEE
15 years 1 months ago
Low-Dimensional Representations of Shaded Surfaces under Varying Illumination
The aim of this paper is to find the best representation for the appearance of surfaces with Lambertian reflectance under varying illumination. Previous work using principal compo...
Peter Nillius, Jan-Olof Eklundh
CVPR
1999
IEEE
15 years 1 months ago
Shadow Gestures: 3D Hand Pose Estimation Using a Single Camera
This paper describes a system that uses a camera and a point light source to track a user's hand in three dimensions. Using depth cues obtained from projections of the hand a...
Jakub Segen, Senthil Kumar