Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Deep Point Cloud Simplification for High-quality Surface Reconstruction   The growing size of point clouds enlarges consumptions of storage,
transmission, and computation of 3D scenes. Raw data is redundant, noisy, and
non-uniform. Therefore, simplifying point clouds for achieving compact, clean,
and uniform points is becoming increasingly important for 3D vision and
graphics tasks. Previous learning based methods aim to generate fewer points
for scene understanding, regardless of the quality of surface reconstruction,
leading to results with low reconstruction accuracy and bad point distribution.
In this paper, we propose a novel point cloud simplification network (PCS-Net)
dedicated to high-quality surface mesh reconstruction while maintaining
geometric fidelity. We first learn a sampling matrix in a feature-aware
simplification module to reduce the number of points. Then we propose a novel
double-scale resampling module to refine the positions of the sampled points,
to achieve a uniform distribution. To further retain important shape features,
an adaptive sampling strategy with a novel saliency loss is designed. With our
PCS-Net, the input non-uniform and noisy point cloud can be simplified in a
feature-aware manner, i.e., points near salient features are consolidated but
still with uniform distribution locally. Experiments demonstrate the
effectiveness of our method and show that we outperform previous simplification
or reconstruction-oriented upsampling methods.

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The categories of this paper are: gr-qc
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The categories of this paper are: acc-phys
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The categories of this paper are: math
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The categories of this paper are: stat
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The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: solv-int
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: math-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: cmp-lg