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  • Cellular automata  (1)
  • Facial animation  (1)
  • Nonverbal communication  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    A “lifegame” approach to surface modeling and rendering (1986)
    Springer
    The visual computer 2 (1986), S. 384-390 
    Details
    ISSN: 1432-2315
    Keywords: Lifegame ; Transition functions ; Cellular automata ; Bump mapping ; Solid texture
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract Conway's Lifegame is a trivial and wellknown application of a more general theory called the theory of cellular automata. Complex systems modeling may be based on the theory of cellular automata, originated by John von Neumann. Our approach is to define simple components that we call “analog automata”. An analog automaton is a finite state automaton where the state is defined in terms of real numbers representing physical quantities such a position, velocity, mass or color. Deterministic state transition function are applied to these automata using information from the state of neighboring automata. In our case, successive generations in the evolution of these cellular automata are mapped onto polygonal meshes in order to build and texture arbitrary surfaces.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01952423
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Abstract muscle action procedures for human face animation (1988)
    Springer
    The visual computer 3 (1988), S. 290-297 
    Details
    ISSN: 1432-2315
    Keywords: Facial animation ; Muscle ; Phoneme ; Expression ; Script
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract A new way of controlling human face animation and synchronizing speech is proposed. It is based on the concept of abstract muscle action procedure (AMA procedure). An AMA procedure is a specialized procedure which simulates the specific action of a face muscle. This paper describes the new technique and presents a methodology for animating the face of synthetic actors based on three levels: the AMA-procedure level, the expression level and the script level. The role of multiple tracks is also emphasized. Practical examples are also explained in detail, based on the filmRendez-vous à Montréal with the synthetic actors Marilyn Monroe and Humphrey Bogart.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01914864
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Nonverbal communication interface for collaborative virtual environments (1999)
    Springer
    Virtual reality 4 (1999), S. 49-59 
    Details
    ISSN: 1434-9957
    Keywords: Nonverbal communication ; Embodiments ; Networked virtual environments ; Social interaction in virtual environments ; Emotional feedback
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract Nonverbal communication is an important aspect of real-life face-to-face interaction and one of the most efficient ways to convey emotions, therefore users should be provided the means to replicate it in the virtual world. Because articulated embodiments are well suited to provide body communication in virtual environments, this paper first reviews some of the advantages and disadvantages of complex embodiments. After a brief introduction to nonverbal communication theories, we present our solution, taking into account the practical limitations of input devices and social science aspects. We introduce our sample of actions and implementation using our VLNET (Virtual Life Network) networked virtual environment and discuss the results of an informal evaluation experiment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01434994
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    Paper (German National Licenses)
    Fulltext
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