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ACII
2007
Springer
14 years 1 months ago
Expression of Emotions in Virtual Humans Using Lights, Shadows, Composition and Filters
Abstract. Artists use words, lines, shapes, color, sound and their bodies to express emotions. Virtual humans use postures, gestures, face and voice to express emotions. Why are th...
Celso de Melo, Ana Paiva
PAMI
2006
278views more  PAMI 2006»
13 years 7 months ago
On the Removal of Shadows from Images
This paper is concerned with the derivation of a progression of shadow-free image representations. First, we show that adopting certain assumptions about lights and cameras leads t...
Graham D. Finlayson, Steven D. Hordley, Cheng Lu, ...
ICWSM
2010
13 years 8 months ago
Conversational Shadows: Describing Live Media Events Using Short Messages
Microblogging concurrently with live media events is becoming commonplace. The resulting comment stream represents a parallel, social conversational reflection on the event. Altho...
David A. Shamma, Lyndon Kennedy, Elizabeth F. Chur...
ICC
2009
IEEE
13 years 5 months ago
Interference and Deployment Issues for Cognitive Radio Systems in Shadowing Environments
In this paper we describe a model for calculating the aggregate interference encountered by primary receivers in the presence of randomly placed cognitive radios (CRs). We show tha...
Muhammad Fainan Hanif, Mansoor Shafi, Peter J. Smi...
CGF
2010
104views more  CGF 2010»
13 years 7 months ago
Interactive, Multiresolution Image-Space Rendering for Dynamic Area Lighting
Area lights add tremendous realism, but rendering them interactively proves challenging. Integrating visibility is costly, even with current shadowing techniques, and existing met...
Greg Nichols, Rajeev Penmatsa, Chris Wyman