Abstract
Until recently, the possibility of a "virtual mannequin" service for telepresence shopping systems has been unrealistic due to the number and complexity of calculations required for the modelling of physical clothing items. In this paper, the authors present the FIGMENT scheme (Fast Implementation Garment Modelling environmENT) which involves a four point strategy (a simplified physical model, collision volume approximation, progressive meshes and a hybrid rendering algorithm) to reduce the quantity and complexity of the computations involved, bringing simulation times from the realm of hours to seconds while maintaining an acceptable level of accuracy and quality in the results.
Highlights
The Teleshoppe project [18] is concerned with the application of advanced multimedia and virtual reality technologies in order to simulate the 'touch and feel' of physical shopping, enhancing the usability of the user interface for a telepresence shopping experience
This paper provides an overview of the FIGMENT scheme (Fast Implementation Garment Modelling environmENT) at the heart of the virtual mannequin service
Fast algorithms for self collision detection have been successfully implemented in long term cloth animation [26], due to the high number of calculations required and the complex nature of such detection algorithms this aspect of the physical modeling is not incorporated within the FIGMENT scheme, which instead relies on the natural stiffness of the cloth to avoid serious self penetration problems
Summary
The Teleshoppe project [18] is concerned with the application of advanced multimedia and virtual reality technologies in order to simulate the 'touch and feel' of physical shopping, enhancing the usability of the user interface for a telepresence shopping experience. Previous attempts to simulate the physical behavior and appearance of cloth have performed the calculations on a long term basis. Such an approach to modelling clothing would be inappropriate for an interactive shopping service; any usable service which allows consumers to view different items and combinations of clothing during a shopping session needs to provide results in a considerably shorter space of time. By using reduced complexity (more discrete) models of clothing items in combination with simplified and optimized algorithms to calculate the dynamics of the cloth, a dramatic reduction in simulation time can be achieved. A hybrid rendering algorithm is used to ensure that layers of clothing can be rendered without appearing to penetrate one another or the surface of the mannequin
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