Search Results for author: Xiuping Liu

Found 19 papers, 5 papers with code

Evaluating the Robustness of LiDAR Point Cloud Tracking Against Adversarial Attack

no code implementations28 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.

3D Object Tracking Adversarial Attack +1

Asymmetrical Siamese Network for Point Clouds Normal Estimation

no code implementations14 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.

Refining 3D Point Cloud Normal Estimation via Sample Selection

no code implementations20 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.

iBA: Backdoor Attack on 3D Point Cloud via Reconstructing Itself

no code implementations9 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.

Backdoor Attack Specificity

Spectrum-guided Feature Enhancement Network for Event Person Re-Identification

no code implementations2 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).

Person Re-Identification

Small Object Tracking in LiDAR Point Cloud: Learning the Target-awareness Prototype and Fine-grained Search Region

no code implementations24 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.

Object Tracking

AffordPose: A Large-scale Dataset of Hand-Object Interactions with Affordance-driven Hand Pose

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.

Diversity Object

Fine-grained Text and Image Guided Point Cloud Completion with CLIP Model

no code implementations17 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.

Language Modelling Point Cloud Completion

OST: Efficient One-stream Network for 3D Single Object Tracking in Point Clouds

no code implementations16 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.

3D Single Object Tracking Multiple Object Tracking

DR-GAN: Distribution Regularization for Text-to-Image Generation

1 code implementation17 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.

Generative Adversarial Network Text-to-Image Generation

Towards Class-agnostic Tracking Using Feature Decorrelation in Point Clouds

no code implementations28 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.

Benchmarking Object Tracking

Improvement of Normal Estimation for PointClouds via Simplifying Surface Fitting

no code implementations21 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.

Fast and Accurate Normal Estimation for Point Cloud via Patch Stitching

no code implementations30 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.

Retrieval

MHSA-Net: Multi-Head Self-Attention Network for Occluded Person Re-Identification

1 code implementation10 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.

Diversity Occluded Person Re-Identification

Concise and Effective Network for 3D Human Modeling from Orthogonal Silhouettes

1 code implementation25 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).

Normal Estimation for 3D Point Clouds via Local Plane Constraint and Multi-scale Selection

no code implementations18 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.

Multi-Normal Estimation via Pair Consistency Voting

1 code implementation1 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.

Surface Normals Estimation from Point Clouds

Cannot find the paper you are looking for? You can Submit a new open access paper.