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ACII
2007
Springer
16 years 26 days 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
ACII
2007
Springer
16 years 26 days ago
Facial Expression Synthesis Using PAD Emotional Parameters for a Chinese Expressive Avatar
Facial expression plays an important role in face to face communication in that it conveys nonverbal information and emotional intent beyond speech. In this paper, an approach for ...
Shen Zhang, Zhiyong Wu, Helen M. Meng, Lianhong Ca...
AIIA
2007
Springer
16 years 26 days ago
Robust Color-Based Skin Detection for an Interactive Robot
Detection of human skin in an arbitrary image is generally hard. Most color-based skin detection algorithms are based on a static color model of the skin. However, a static model c...
Alvise Lastra, Alberto Pretto, Stefano Tonello, Em...
APPROX
2007
Springer
137views Algorithms» more  APPROX 2007»
16 years 26 days ago
A Knapsack Secretary Problem with Applications
We consider situations in which a decision-maker with a fixed budget faces a sequence of options, each with a cost and a value, and must select a subset of them online so as to ma...
Moshe Babaioff, Nicole Immorlica, David Kempe, Rob...
APPROX
2007
Springer
92views Algorithms» more  APPROX 2007»
16 years 26 days ago
Sublinear Algorithms for Approximating String Compressibility
We raise the question of approximating the compressibility of a string with respect to a fixed compression scheme, in sublinear time. We study this question in detail for two popu...
Sofya Raskhodnikova, Dana Ron, Ronitt Rubinfeld, A...