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Hybrid Function Representation for Heterogeneous Objects.

Tereshin, A., Pasko, A., Fryazinov, O. and Adzhiev, V., 2021. Hybrid Function Representation for Heterogeneous Objects. Graphical Models, 114 (March), 101098.

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DOI: 10.1016/j.gmod.2021.101098

Abstract

Heterogeneous object modelling is an emerging area where geometric shapes are considered in concert with their internal physically-based attributes. This paper describes a novel theoretical and practical framework for modelling volumetric heterogeneous objects on the basis of a novel unifying functionally-based hybrid representation called HFRep. This new representation allows for obtaining a continuous smooth distance field in Euclidean space and preserves the advantages of the conventional representations based on scalar fields of different kinds without their drawbacks. We systematically describe the mathematical and algorithmic basics of HFRep. The steps of the basic algorithm are presented in detail for both geometry and attributes. To solve some problematic issues, we have suggested several practical solutions, including a new algorithm for solving the eikonal equation on hierarchical grids. Finally, we show the practicality of the approach by modelling several representative heterogeneous objects, including those of a time-variant nature.

Item Type:Article
ISSN:1524-0703
Uncontrolled Keywords:Hybrid representation; Distance fields; Eikonal solver; Function representation; Heterogeneous objects; Volumetric modelling; Time-variant objects
Group:Faculty of Media & Communication
ID Code:35029
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:11 Jan 2021 10:03
Last Modified:27 May 2021 07:54

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