Mukhaimar, A;
Tennakoon, R;
Lai, CY;
Hoseinnezhad, R;
Bab-Hadiashar, A;
(2022)
Robust Object Classification Approach using Spherical Harmonics.
IEEE Access
, 10
21541 -21553.
10.1109/ACCESS.2022.3151350.
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Abstract
Point clouds produced by either 3D scanners or multi-view images are often imperfect and contain noise or outliers. This paper presents an end-to-end robust spherical harmonics approach to classifying 3D objects. The proposed framework first uses the voxel grid of concentric spheres to learn features over the unit ball. We then limit the spherical harmonics order level to suppress the effect of noise and outliers. In addition, the entire classification operation is performed in the Fourier domain. As a result, our proposed model learned features that are less sensitive to data perturbations and corruptions. We tested our proposed model against several types of data perturbations and corruptions, such as noise and outliers. Our results show that the proposed model has fewer parameters, competes with state-of-art networks in terms of robustness to data inaccuracies, and is faster than other robust methods. Our implementation code is also publicly available1.
Type: | Article |
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Title: | Robust Object Classification Approach using Spherical Harmonics |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1109/ACCESS.2022.3151350 |
Publisher version: | http://dx.doi.org/10.1109/ACCESS.2022.3151350 |
Language: | English |
Additional information: | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. For more information, see https://creativecommons.org/licenses/by-nc-nd/4.0/ |
Keywords: | Harmonic analysis, Three-dimensional displays, Power harmonic filters, Point cloud compression, Shape, Convolution, Robustness |
UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
URI: | https://discovery.ucl.ac.uk/id/eprint/10144612 |
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