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» The Appearance of Brightness and Lightness
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CVPR
2008
IEEE
14 years 11 months ago
Accurate Eye Center Location and Tracking Using Isophote Curvature
The ubiquitous application of eye tracking is precluded by the requirement of dedicated and expensive hardware, such as infrared high definition cameras. Therefore, systems based s...
Roberto Valenti, Theo Gevers
TSD
2004
Springer
14 years 1 months ago
Multimodal Phoneme Recognition of Meeting Data
This paper describes experiments in automatic recognition of context-independent phoneme strings from meeting data using audiovisual features. Visual features are known to improve ...
Petr Motlícek, Jan Cernocký
ISUVR
2007
13 years 10 months ago
Light Source Estimation for Realistic Shadow using Segmented HDR Images
— To achieve seamless integration of the real scene with virtual objects, we need to obtain accurate illumination condition of the real scene. Using HDRI (High Dynamic Range Imag...
JaeDoug Yoo, Kwanheng Lee
CVPR
2008
IEEE
14 years 10 months ago
Non-refractive modulators for encoding and capturing scene appearance and depth
We analyze the modulation of a light field via nonrefracting attenuators. In the most general case, any desired modulation can be achieved with attenuators having four degrees of ...
Ashok Veeraraghavan, Amit K. Agrawal, Ramesh Raska...
PG
2002
IEEE
14 years 1 months ago
Estimation of Multiple Directional Light Sources for Synthesis of Mixed Reality Images
We present a new method for the detection and estimation of multiple directional illuminants, using a single image of any object with known geometry and Lambertian reflectance. W...
Yang Wang, Dimitris Samaras