Cross-Shape Attention for Part Segmentation of 3D Point Clouds
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Date
2023
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association and John Wiley & Sons Ltd.
Abstract
We present a deep learning method that propagates point-wise feature representations across shapes within a collection for the purpose of 3D shape segmentation. We propose a cross-shape attention mechanism to enable interactions between a shape's point-wise features and those of other shapes. The mechanism assesses both the degree of interaction between points and also mediates feature propagation across shapes, improving the accuracy and consistency of the resulting point-wise feature representations for shape segmentation. Our method also proposes a shape retrieval measure to select suitable shapes for crossshape attention operations for each test shape. Our experiments demonstrate that our approach yields state-of-the-art results in the popular PartNet dataset.
Description
CCS Concepts: Computing methodologies -> Shape representations; Computer systems organization -> Neural networks
@article{10.1111:cgf.14909,
journal = {Computer Graphics Forum},
title = {{Cross-Shape Attention for Part Segmentation of 3D Point Clouds}},
author = {Loizou, Marios and Garg, Siddhant and Petrov, Dmitry and Averkiou, Melinos and Kalogerakis, Evangelos},
year = {2023},
publisher = {The Eurographics Association and John Wiley & Sons Ltd.},
ISSN = {1467-8659},
DOI = {10.1111/cgf.14909}
}