no code implementations • 28 Oct 2024 • Shengjing Tian, Yinan Han, Xiantong Zhao, Bin Liu, Xiuping Liu
In this study, we delve into the robustness of neural network-based LiDAR point cloud tracking models under adversarial attacks, a critical aspect often overlooked in favor of performance enhancement.
no code implementations • 14 Jun 2024 • Wei Jin, Jun Zhou, Nannan Li, Haba Madeline, Xiuping Liu
Evaluation of existing methods on this new dataset reveals their inability to adapt to different types of shapes, indicating a degree of overfitting.
no code implementations • 20 May 2024 • Jun Zhou, Yaoshun Li, Hongchen Tan, Mingjie Wang, Nannan Li, Xiuping Liu
In recent years, point cloud normal estimation, as a classical and foundational algorithm, has garnered extensive attention in the field of 3D geometric processing.
no code implementations • 9 Mar 2024 • Yuhao Bian, Shengjing Tian, Xiuping Liu
The widespread deployment of Deep Neural Networks (DNNs) for 3D point cloud processing starkly contrasts with their susceptibility to security breaches, notably backdoor attacks.
no code implementations • 2 Feb 2024 • Hongchen Tan, Yi Zhang, Xiuping Liu, BaoCai Yin, Nan Ma, Xin Li, Huchuan Lu
This network consists of two innovative components: the Multi-grain Spectrum Attention Mechanism (MSAM) and the Consecutive Patch Dropout Module (CPDM).
no code implementations • 24 Jan 2024 • Shengjing Tian, Yinan Han, Xiuping Liu, Xiantong Zhao
To this end, we propose a Siamese network-based method for small object tracking in the LiDAR point cloud, which is composed of the target-awareness prototype mining (TAPM) module and the regional grid subdivision (RGS) module.
1 code implementation • ICCV 2023 • Juntao Jian, Xiuping Liu, Manyi Li, Ruizhen Hu, Jian Liu
We collect a total of 26. 7K hand-object interactions, each including the 3D object shape, the part-level affordance label, and the manually adjusted hand poses.
no code implementations • 17 Aug 2023 • Wei Song, Jun Zhou, Mingjie Wang, Hongchen Tan, Nannan Li, Xiuping Liu
In this work, we propose a novel multimodal fusion network for point cloud completion, which can simultaneously fuse visual and textual information to predict the semantic and geometric characteristics of incomplete shapes effectively.
no code implementations • 13 Apr 2023 • Hongchen Tan, BaoCai Yin, Kun Wei, Xiuping Liu, Xin Li
The ALR-GAN includes an Adaptive Layout Refinement (ALR) module and a Layout Visual Refinement (LVR) loss.
no code implementations • 16 Oct 2022 • Xiantong Zhao, Yinan Han, Shengjing Tian, Jian Liu, Xiuping Liu
Although recent Siamese network-based trackers have achieved impressive perceptual accuracy for single object tracking in LiDAR point clouds, they usually utilized heavy correlation operations to capture category-level characteristics only, and overlook the inherent merit of arbitrariness in contrast to multiple object tracking.
1 code implementation • 17 Apr 2022 • Hongchen Tan, Xiuping Liu, BaoCai Yin, Xin Li
This paper presents a new Text-to-Image generation model, named Distribution Regularization Generative Adversarial Network (DR-GAN), to generate images from text descriptions from improved distribution learning.
no code implementations • 28 Feb 2022 • Shengjing Tian, Jun Liu, Xiuping Liu
In this work, we investigate a more challenging task in the LiDAR point clouds, class-agnostic tracking, where a general model is supposed to be learned for any specified targets of both observed and unseen categories.
no code implementations • 21 Apr 2021 • Jun Zhou, Wei Jin, Mingjie Wang, Xiuping Liu, Zhiyang Li, Zhaobin Liu
Firstly, a dynamic top-k selection strategy is introduced to better focus on the most critical points of a given patch, and the points selected by our learning method tend to fit a surface by way of a simple tangent plane, which can dramatically improve the normal estimation results of patches with sharp corners or complex patterns.
no code implementations • 30 Mar 2021 • Jun Zhou, Wei Jin, Mingjie Wang, Xiuping Liu, Zhiyang Li, Zhaobin Liu
At the stitching stage, we use the learned weights of multi-branch planar experts and distance weights between points to select the best normal from the overlapping parts.
no code implementations • 10 Aug 2020 • Hongchen Tan, Yuhao Bian, Huasheng Wang, Xiuping Liu, Bao-Cai Yin
The CBDB-Net contains two novel designs: the Consecutive Batch DropBlock Module (CBDBM) and the Elastic Loss (EL).
1 code implementation • 10 Aug 2020 • Hongchen Tan, Xiuping Liu, BaoCai Yin, Xin Li
This paper presents a novel person re-identification model, named Multi-Head Self-Attention Network (MHSA-Net), to prune unimportant information and capture key local information from person images.
1 code implementation • 25 Dec 2019 • Bin Liu, Xiuping Liu, Zhi-Xin Yang, Charlie C. L. Wang
In this paper, we revisit the problem of 3D human modeling from two orthogonal silhouettes of individuals (i. e., front and side views).
no code implementations • 18 Oct 2019 • Jun Zhou, Hua Huang, Bin Liu, Xiuping Liu
Then we use multi-task optimization to train the normal estimation and local plane classification tasks simultaneously. Also, to integrate the advantages of multi-scale results, a scale selection strategy is adopted, which is a data-driven approach for selecting the optimal scale around each point and encourages subnetwork specialization.
1 code implementation • 1 Apr 2019 • Jie Zhang, Junjie Cao, Xiuping Liu, He Chen, Bo Li, Ligang Liu
This paper presents a unified definition for point cloud normals of feature and non-feature points, which allows feature points to possess multiple normals.