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X-3D: Explicit 3D Structure Modeling for Point Cloud Recognition
April 24, 2024, 4:45 a.m. | Shuofeng Sun, Yongming Rao, Jiwen Lu, Haibin Yan
cs.CV updates on arXiv.org arxiv.org
Abstract: Numerous prior studies predominantly emphasize constructing relation vectors for individual neighborhood points and generating dynamic kernels for each vector and embedding these into high-dimensional spaces to capture implicit local structures. However, we contend that such implicit high-dimensional structure modeling approch inadequately represents the local geometric structure of point clouds due to the absence of explicit structural information. Hence, we introduce X-3D, an explicit 3D structure modeling approach. X-3D functions by capturing the explicit local structural …
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