ASFM-Net: Asymmetrical Siamese Feature Matching Network for Point
Completion
- URL: http://arxiv.org/abs/2104.09587v1
- Date: Mon, 19 Apr 2021 19:42:42 GMT
- Title: ASFM-Net: Asymmetrical Siamese Feature Matching Network for Point
Completion
- Authors: Yaqi Xia, Yan Xia, Wei Li, Rui Song, Kailang Cao, Uwe Stilla
- Abstract summary: We propose a novel point cloud completion network using a feature matching strategy, termed as ASFM-Net.
Specifically, the asymmetrical Siamese auto-encoder neural network is adopted to map the partial and complete input point cloud into a shared latent space, which can capture detailed shape prior.
Experiments are conducted on the PCN dataset and the Completion3D benchmark, demonstrating the state-of-the-art performance of the proposed ASFM-Net.
- Score: 11.243242995190082
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We tackle the problem of object completion from point clouds and propose a
novel point cloud completion network using a feature matching strategy, termed
as ASFM-Net. Specifically, the asymmetrical Siamese auto-encoder neural network
is adopted to map the partial and complete input point cloud into a shared
latent space, which can capture detailed shape prior. Then we design an
iterative refinement unit to generate complete shapes with fine-grained details
by integrating prior information. Experiments are conducted on the PCN dataset
and the Completion3D benchmark, demonstrating the state-of-the-art performance
of the proposed ASFM-Net. The codes and trained models will be open-sourced.
Related papers
- Self-supervised 3D Point Cloud Completion via Multi-view Adversarial Learning [61.14132533712537]
We propose MAL-SPC, a framework that effectively leverages both object-level and category-specific geometric similarities to complete missing structures.
Our MAL-SPC does not require any 3D complete supervision and only necessitates a single partial point cloud for each object.
arXiv Detail & Related papers (2024-07-13T06:53:39Z) - Point Cloud Completion Guided by Prior Knowledge via Causal Inference [19.935868881427226]
We propose a novel approach to point cloud completion task called Point-PC.
Point-PC uses a memory network to retrieve shape priors and designs a causal inference model to filter missing shape information.
Experimental results on the ShapeNet-55, PCN, and KITTI datasets demonstrate that Point-PC outperforms the state-of-the-art methods.
arXiv Detail & Related papers (2023-05-28T16:33:35Z) - PointAttN: You Only Need Attention for Point Cloud Completion [89.88766317412052]
Point cloud completion refers to completing 3D shapes from partial 3D point clouds.
We propose a novel neural network for processing point cloud in a per-point manner to eliminate kNNs.
The proposed framework, namely PointAttN, is simple, neat and effective, which can precisely capture the structural information of 3D shapes.
arXiv Detail & Related papers (2022-03-16T09:20:01Z) - Point cloud completion on structured feature map with feedback network [28.710494879042002]
We propose FSNet, a feature structuring module that can adaptively aggregate point-wise features into a 2D structured feature map.
A 2D convolutional neural network is adopted to decode feature maps from FSNet into a coarse and complete point cloud.
A point cloud upsampling network is used to generate dense point cloud from the partial input and the coarse intermediate output.
arXiv Detail & Related papers (2022-02-17T10:59:40Z) - GASCN: Graph Attention Shape Completion Network [4.307812758854162]
Shape completion is the problem of inferring the complete geometry of an object given a partial point cloud.
This paper proposes the Graph Attention Shape Completion Network (GASCN), a novel neural network model that solves this problem.
For each completed point, our model infers the extent of the local surface patch which is used to produce dense yet precise shape completions.
arXiv Detail & Related papers (2022-01-20T01:03:00Z) - Voxel-based Network for Shape Completion by Leveraging Edge Generation [76.23436070605348]
We develop a voxel-based network for point cloud completion by leveraging edge generation (VE-PCN)
We first embed point clouds into regular voxel grids, and then generate complete objects with the help of the hallucinated shape edges.
This decoupled architecture together with a multi-scale grid feature learning is able to generate more realistic on-surface details.
arXiv Detail & Related papers (2021-08-23T05:10:29Z) - Refinement of Predicted Missing Parts Enhance Point Cloud Completion [62.997667081978825]
Point cloud completion is the task of predicting complete geometry from partial observations using a point set representation for a 3D shape.
Previous approaches propose neural networks to directly estimate the whole point cloud through encoder-decoder models fed by the incomplete point set.
This paper proposes an end-to-end neural network architecture that focuses on computing the missing geometry and merging the known input and the predicted point cloud.
arXiv Detail & Related papers (2020-10-08T22:01:23Z) - Point Cloud Completion by Skip-attention Network with Hierarchical
Folding [61.59710288271434]
We propose Skip-Attention Network (SA-Net) for 3D point cloud completion.
First, we propose a skip-attention mechanism to effectively exploit the local structure details of incomplete point clouds.
Second, in order to fully utilize the selected geometric information encoded by skip-attention mechanism at different resolutions, we propose a novel structure-preserving decoder.
arXiv Detail & Related papers (2020-05-08T06:23:51Z) - Cascaded Refinement Network for Point Cloud Completion [74.80746431691938]
We propose a cascaded refinement network together with a coarse-to-fine strategy to synthesize the detailed object shapes.
Considering the local details of partial input with the global shape information together, we can preserve the existing details in the incomplete point set.
We also design a patch discriminator that guarantees every local area has the same pattern with the ground truth to learn the complicated point distribution.
arXiv Detail & Related papers (2020-04-07T13:03:29Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.