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• W4384468681 abstract "Relief patterns represent a surface characteristic that can be seen as the 3D counterpart of the texture concept in 2D images. Such characteristic is well distinct from the 3D object shape but represents a good information source to recognize the object itself. The majority of state-of-the-art techniques for 2D images rely on convolution-based filtering so, the idea of extending such techniques to the mesh manifold domain is quite intriguing as much as challenging. In this paper, we propose a novel approach based on Graph Neural Networks for 3D mesh relief pattern classification. To this end, we designed a bi-level architecture that learns on data structures computed thanks to a mesh resampling algorithm that allows us to represent local surface patches uniformly, while keeping a consistent points order. The local mesh structures are represented by SpiderPatches, that aim to capture local features of the 3D mesh surface, providing a fine-grained rich representation of the relief patterns; global structures are instead captured by MeshGraphs, whose nodes are SpiderPatches, representing the mesh at a macroscopic level. We tested our architecture using SpiderPatches and MeshGraphs on the original meshes of the SHREC’17 and SHREC’20 relief patterns track datasets, showing superior performance to that reported in the literature using a comparable experimental setting." @default.
• W4384468681 created "2023-07-17" @default.
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• W4384468681 date "2023-10-01" @default.
• W4384468681 modified "2023-09-25" @default.
• W4384468681 title "Learning graph-based features for relief patterns classification on mesh manifolds" @default.
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• W4384468681 doi "https://doi.org/10.1016/j.cag.2023.07.004" @default.
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