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Date 5-7 June 1997

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Displaying Results 1 - 22 of 22
  • Proceedings. Computer Animation '97 (Cat. No.97TB100120)

    Publication Year: 1997
    Request permission for commercial reuse | PDF file iconPDF (213 KB)
    Freely Available from IEEE
  • Author index

    Publication Year: 1997, Page(s): 165
    Request permission for commercial reuse | PDF file iconPDF (38 KB)
    Freely Available from IEEE
  • Virtual images as a “line-test” to real image animation

    Publication Year: 1997, Page(s):157 - 161
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (852 KB)

    We present in this article a “Line-test” solution for use in animation of real image. The “line-test” process is based on the use and manipulation of the virtual image and animation to predict the animation that will be executed in real image. We present a solution, that uses laser beams to indicate the position of the object/subject to animate in each photogram, according ... View full abstract»

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  • Arc-length-based axial deformation and length preserved animation

    Publication Year: 1997, Page(s):86 - 92
    Cited by:  Papers (3)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (636 KB)

    In real life, some objects may deform along axial curves and the lengths of their skeletons usually remain constant during the axial deformation, such as a swimming fish, a swaying tree, etc. This paper presents a practical approach of arc-length-based axial deformation and axial-length-preserved animation. The space spanned by the arc-length parameter and the rotation-minimizing frame on the axis... View full abstract»

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  • Collaborative environments of Intelligent Box for distributed 3D graphic applications

    Publication Year: 1997, Page(s):22 - 30
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1136 KB)

    The paper treats a constructive visual software development system for interactive 3D graphic applications. Our system, Intelligent Box represents any objects as reactive 3D visual objects, which are called Boxes that can be manually combined with other Boxes. It provides a uniform framework for the concurrent definition of both geometrical compound structures among Boxes and their mutually intera... View full abstract»

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  • Dynamic behaviours for computer animation: the use of Java

    Publication Year: 1997, Page(s):151 - 156
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    This paper describes research involving the use of Java to implement dynamic behavioural control of animated objects. Java ideal for this application because it is an object-oriented language that allows dynamic extension and reconfiguration. The system uses sets of external classes for each actor (called `evaluators') that modify arrays of parameters passed to them. This provides a flexible metho... View full abstract»

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  • An animation interface designed for motion capture

    Publication Year: 1997, Page(s):77 - 85
    Cited by:  Papers (1)  |  Patents (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1368 KB)

    We present an animation interface designed to conveniently control the motion capture process. The transition of performer's hand gestures tracked by a dataglove is recognized for software remote control. An intuitive camera metaphor allows one to specify the viewpoint location using the magnetic sensors strapped to the performer's head. The human motion capture is based on the Anatomical Converte... View full abstract»

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  • Fast collision detection among multiple moving spheres

    Publication Year: 1997, Page(s):1 - 7
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    The paper presents an event driven approach that efficiently detects collisions among multiple moving spheres of uniform radius. We divide the space containing the spheres into uniform subspaces of cell structure. Each sphere intersecting a subspace is tested against the others intersecting the same subspace for possible collisions. We identify three types of events to detect the sequence of all c... View full abstract»

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  • PROVIS: a platform for virtual prototyping and maintenance tests

    Publication Year: 1997, Page(s):39 - 47
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (872 KB)

    Prototype design and testing is an indispensable stage of any project development in many fields of activity, such as aeronautical, spatial, automotive industries or architecture. Scientists and engineers rely on prototyping for a visual confirmation and validation of both their ideas and concepts. The paper describes the design and implementation of PROVIS, a system for prototyping virtual system... View full abstract»

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  • Animating flow fields: rendering of oriented line integral convolution

    Publication Year: 1997, Page(s):15 - 21
    Cited by:  Papers (29)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1160 KB)

    Line Integral Convolution (LIC) is a common approach for the visualisation of 2D vector fields. It is well suited for visualizing the direction of a flow field, but it gives no information about the orientation of the underlying vectors. We introduce Oriented Line Integral Convolution (OLIC), where direction as well as orientation are encoded within the resulting image. This is achieved by using a... View full abstract»

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  • Assessment criteria for 2D shape transformations in animation

    Publication Year: 1997, Page(s):103 - 112
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (780 KB)

    The assessment of 2D shape transformations (or morphing) for animation is a difficult task because it is a multi-dimensional problem. Existing morphing techniques pay most attention to shape information interactive control and mathematical simplicity. This paper shows that it is not enough to use shape information alone, and we should consider other factors such as structure, dynamics, timing, etc... View full abstract»

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  • Behavioural simulation in voxel space

    Publication Year: 1997, Page(s):119 - 126
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1484 KB)

    We present a framework for behavioural simulation. A uniform voxel space representation is used to implement the environment mechanism of the framework. An example environment is presented where actors with olfactory sensors are able to direct their motions according to a scent of the chemicals in the voxel space based on mass transfer theory. Objects in the environment are scan converted to the v... View full abstract»

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  • Dirichlet free-form deformations and their application to hand simulation

    Publication Year: 1997, Page(s):93 - 102
    Cited by:  Papers (35)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1008 KB)

    Presents a generalized method for free-form deformations (FFDs) that combines the traditional FFD model with techniques of scattered data interpolation based on Delaunay and Dirichlet/Voronoi diagrams. This technique offers many advantages over traditional FFDs, including simple control of local deformations. It also keeps all the capabilities of FFD extensions, such as extended FFDs and direct FF... View full abstract»

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  • Interaction between real and virtual humans in augmented reality

    Publication Year: 1997, Page(s):31 - 38
    Cited by:  Papers (4)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1192 KB)

    Interaction between real and virtual humans covers a wide range of topics from creation and animation of virtual actors to computer vision techniques for data acquisition from real world. We discuss the design and implementation of an augmented reality system which allows investigation of different real/virtual interaction aspects. As an example we present an application to create real time intera... View full abstract»

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  • Multilevel modelling of virtual urban environments for behavioural animation

    Publication Year: 1997, Page(s):127 - 133
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1096 KB)

    The Praxitele project is responsible for the design of a new kind of transportation in an urban environment, which consists of a fleet of electric public cars. These public cars are capable of autonomous motion on given journeys between stations. The realization of such a project requires experimentations with the behaviour of autonomous vehicles in the urban environment. Because of the danger con... View full abstract»

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  • Emotional posturing: a method towards achieving emotional figure animation

    Publication Year: 1997, Page(s):8 - 14
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (660 KB)

    Putting emotion into figure animation is a difficult task. The paper describes a method towards solving this problem. An emotional model is proposed based on psychological theory and this is integrated into the posturing of the figure. The system is based on general posturing functions which are interpreted depending on the emotional state of the figure. These functions can affect individual joint... View full abstract»

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  • Capturing and analyzing stability of human body motions using video cameras

    Publication Year: 1997, Page(s):48 - 57
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1820 KB)

    The need for capturing human body motions has been increasing recently for making movies, sports instruction systems and robots that can simulate human motions. The paper proposes a method to facilitate motion capturing using inexpensive video cameras. In our system, a few cameras are used to obtain multiple views of a human body and a three dimensional (3D) volume consistent with the views is cre... View full abstract»

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  • CASUS; an object-oriented three-dimensional animation system for event-oriented simulators

    Publication Year: 1997, Page(s):144 - 150
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (948 KB)

    This paper describes an object-oriented approach to linking a three-dimensional visualization to an event-oriented simulator. The goal is an extremely realistic visualization which is, therefore well equipped for customer-oriented presentations. This is achieved by using computer-generated three-dimensional animation. In realizing this approach, a modular concept is suggested which allows-aside fr... View full abstract»

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  • Layered modular action control for communicative humanoids

    Publication Year: 1997, Page(s):134 - 143
    Cited by:  Papers (7)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1020 KB)

    Face-to-face interaction between people is generally effortless and effective. We exchange glances, take turns speaking and make facial and manual gestures to achieve the goals of the dialogue. This paper describes an action composition and selection architecture for synthetic characters capable of full-duplex, real-time face-to-face interaction with a human. This architecture is part of a computa... View full abstract»

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  • Automatic 3D cloning and real-time animation of a human face

    Publication Year: 1997, Page(s):58 - 66
    Cited by:  Papers (11)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1040 KB)

    We describe our techniques for the automatic cloning of a human face which can be animated in real time using both video and audio inputs. Our system can be used for video conferencing and telecooperative work at various sites with shared virtual environment inhabited by virtual clones. This work is part of a European project VIDAS (AC057). A generic face model is used which is modified to fit to ... View full abstract»

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  • Autonomous behavior control of virtual actors based on the AIR model

    Publication Year: 1997, Page(s):113 - 118
    Cited by:  Papers (4)  |  Patents (66)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (756 KB)

    We developed a mechanism in which the behavior of actors in computer-generated virtual space is determined in response their interaction with each other. We call this mechanism the Autonomous Interactive Reaction model (AIR model). The AIR model is a simplified mechanism for determining human-like behavior expressed in terms of parameters for emotion and personality, and an actor's behavior is det... View full abstract»

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  • Formal description of auditory scenes

    Publication Year: 1997, Page(s):67 - 76
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    This paper introduces the concept called auditory scenes, which is a tool for high semantic description of everyday sounds, and two grammar approaches based on this concept. It does not consider auditory scene analysis, which describes the ability of listeners to separate the acoustic events arriving from different environmental sources into separate perceptual representations (streams). The conce... View full abstract»

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