Search Results for author: Yifan Xie

Found 17 papers, 3 papers with code

3D-JEPA: A Joint Embedding Predictive Architecture for 3D Self-Supervised Representation Learning

no code implementations24 Sep 2024 Naiwen Hu, Haozhe Cheng, Yifan Xie, Shiqi Li, Jihua Zhu

Overall, 3D-JEPA predicts the representation of target blocks from a context block using the encoder and context-aware decoder architecture.

Decoder Representation Learning

GaussianPU: A Hybrid 2D-3D Upsampling Framework for Enhancing Color Point Clouds via 3D Gaussian Splatting

no code implementations3 Sep 2024 Zixuan Guo, Yifan Xie, Weijing Xie, Peng Huang, Fei Ma, Fei Richard Yu

Extensive experimental results on generating million-level point cloud data validate the effectiveness of our method, substantially improving the quality of colored point clouds and demonstrating significant potential for applications involving large-scale point clouds in autonomous robotics and human-robot interaction scenarios.

Image Restoration point cloud upsampling +2

Incremental Multiview Point Cloud Registration with Two-stage Candidate Retrieval

no code implementations10 Jul 2024 Shiqi Li, Jihua Zhu, Yifan Xie, Mingchen Zhu

In this paper, we propose an incremental multiview point cloud registration method that progressively registers all scans to a growing meta-shape.

Point Cloud Registration Retrieval

Generative Technology for Human Emotion Recognition: A Scope Review

no code implementations4 Jul 2024 Fei Ma, Yucheng Yuan, Yifan Xie, Hongwei Ren, Ivan Liu, Ying He, Fuji Ren, Fei Richard Yu, Shiguang Ni

Finally, the review will outline future research directions, emphasizing the potential of generative models to advance the field of emotion recognition and enhance the emotional intelligence of AI systems.

Data Augmentation Emotional Intelligence +4

Data-Driven Min-Max MPC for Linear Systems: Robustness and Adaptation

no code implementations29 Apr 2024 Yifan Xie, Julian Berberich, Frank Allgöwer

In this paper, we propose a data-driven min-max model predictive control (MPC) scheme using noisy input-state data for unknown linear time-invariant (LTI) system.

Model Predictive Control

Iterative Feedback Network for Unsupervised Point Cloud Registration

1 code implementation9 Jan 2024 Yifan Xie, Boyu Wang, Shiqi Li, Jihua Zhu

In this paper, we propose a novel Iterative Feedback Network (IFNet) for unsupervised point cloud registration, in which the representation of low-level features is efficiently enriched by rerouting subsequent high-level features.

Point Cloud Registration

Cross-Modal Information-Guided Network using Contrastive Learning for Point Cloud Registration

1 code implementation2 Nov 2023 Yifan Xie, Jihua Zhu, Shiqi Li, Pengcheng Shi

Specifically, we first incorporate the projected images from the point clouds and fuse the cross-modal features using the attention mechanism.

Contrastive Learning Point Cloud Registration

DBDNet:Partial-to-Partial Point Cloud Registration with Dual Branches Decoupling

no code implementations18 Oct 2023 Shiqi Li, Jihua Zhu, Yifan Xie

Point cloud registration plays a crucial role in various computer vision tasks, and usually demands the resolution of partial overlap registration in practice.

Point Cloud Registration Translation

Data-Driven Min-Max MPC for Linear Systems

no code implementations29 Sep 2023 Yifan Xie, Julian Berberich, Frank Allgower

Designing data-driven controllers in the presence of noise is an important research problem, in particular when guarantees on stability, robustness, and constraint satisfaction are desired.

Model Predictive Control

GDBN: a Graph Neural Network Approach to Dynamic Bayesian Network

no code implementations28 Jan 2023 Yang Sun, Yifan Xie

Identifying causal relations among multi-variate time series is one of the most important elements towards understanding the complex mechanisms underlying the dynamic system.

Graph Neural Network Time Series +1

Linear Data-Driven Economic MPC with Generalized Terminal Constraint

no code implementations2 Dec 2022 Yifan Xie, Julian Berberich, Frank Allgöwer

By employing a generalized terminal constraint with artificial equilibrium, the scheme does not require prior knowledge of the optimal equilibrium.

LEMMA Model Predictive Control

Less is More: Adaptive Curriculum Learning for Thyroid Nodule Diagnosis

1 code implementation2 Jul 2022 Haifan Gong, Hui Cheng, Yifan Xie, Shuangyi Tan, Guanqi Chen, Fei Chen, Guanbin Li

Thyroid nodule classification aims at determining whether the nodule is benign or malignant based on a given ultrasound image.

Classification

Optimal Synthesis of Opacity-Enforcing Supervisors for Qualitative and Quantitative Specifications

no code implementations2 Feb 2021 Yifan Xie, Xiang Yin, ShaoYuan Li

We assume that the system has a "secret" that does not want to be revealed to the intruder.

Opacity Enforcing Supervisory Control using Non-deterministic Supervisors

no code implementations20 Oct 2020 Yifan Xie, Xiang Yin, ShaoYuan Li

Compared with the standard deterministic control mechanism, such a non-deterministic control mechanism can enhance the plausible deniability of the controlled system as the online control decision is a random realization and cannot be implicitly inferred from the control policy.

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