Search Results for author: Weiming Shen

Found 20 papers, 9 papers with code

Customizing Visual-Language Foundation Models for Multi-modal Anomaly Detection and Reasoning

1 code implementation17 Mar 2024 Xiaohao Xu, Yunkang Cao, Yongqi Chen, Weiming Shen, Xiaonan Huang

In addition, we unify the input representation of multi-modality into a 2D image format, enabling multi-modal anomaly detection and reasoning.

Anomaly Detection

A Survey on Visual Anomaly Detection: Challenge, Approach, and Prospect

no code implementations29 Jan 2024 Yunkang Cao, Xiaohao Xu, Jiangning Zhang, Yuqi Cheng, Xiaonan Huang, Guansong Pang, Weiming Shen

Visual Anomaly Detection (VAD) endeavors to pinpoint deviations from the concept of normality in visual data, widely applied across diverse domains, e. g., industrial defect inspection, and medical lesion detection.

Anomaly Detection Lesion Detection

Generative Denoise Distillation: Simple Stochastic Noises Induce Efficient Knowledge Transfer for Dense Prediction

1 code implementation16 Jan 2024 Zhaoge Liu, Xiaohao Xu, Yunkang Cao, Weiming Shen

Knowledge distillation is the process of transferring knowledge from a more powerful large model (teacher) to a simpler counterpart (student).

Instance Segmentation Knowledge Distillation +5

Towards Generic Anomaly Detection and Understanding: Large-scale Visual-linguistic Model (GPT-4V) Takes the Lead

1 code implementation5 Nov 2023 Yunkang Cao, Xiaohao Xu, Chen Sun, Xiaonan Huang, Weiming Shen

This study explores the use of GPT-4V(ision), a powerful visual-linguistic model, to address anomaly detection tasks in a generic manner.

3D Anomaly Detection Time Series

Weighted Joint Maximum Mean Discrepancy Enabled Multi-Source-Multi-Target Unsupervised Domain Adaptation Fault Diagnosis

no code implementations20 Oct 2023 Zixuan Wang, Haoran Tang, Haibo Wang, Bo Qin, Mark D. Butala, Weiming Shen, Hongwei Wang

Despite the remarkable results that can be achieved by data-driven intelligent fault diagnosis techniques, they presuppose the same distribution of training and test data as well as sufficient labeled data.

Unsupervised Domain Adaptation

V2X-Lead: LiDAR-based End-to-End Autonomous Driving with Vehicle-to-Everything Communication Integration

no code implementations26 Sep 2023 Zhiyun Deng, Yanjun Shi, Weiming Shen

This paper presents a LiDAR-based end-to-end autonomous driving method with Vehicle-to-Everything (V2X) communication integration, termed V2X-Lead, to address the challenges of navigating unregulated urban scenarios under mixed-autonomy traffic conditions.

Autonomous Driving Multi-Task Learning

2nd Place Winning Solution for the CVPR2023 Visual Anomaly and Novelty Detection Challenge: Multimodal Prompting for Data-centric Anomaly Detection

1 code implementation15 Jun 2023 Yunkang Cao, Xiaohao Xu, Chen Sun, Yuqi Cheng, Liang Gao, Weiming Shen

This technical report introduces the winning solution of the team Segment Any Anomaly for the CVPR2023 Visual Anomaly and Novelty Detection (VAND) challenge.

Anomaly Detection Novelty Detection +2

Segment Any Anomaly without Training via Hybrid Prompt Regularization

2 code implementations18 May 2023 Yunkang Cao, Xiaohao Xu, Chen Sun, Yuqi Cheng, Zongwei Du, Liang Gao, Weiming Shen

We present a novel framework, i. e., Segment Any Anomaly + (SAA+), for zero-shot anomaly segmentation with hybrid prompt regularization to improve the adaptability of modern foundation models.

Anomaly Detection Segmentation +1

Collaborative Discrepancy Optimization for Reliable Image Anomaly Localization

1 code implementation IEEE Transactions on Industrial Informatics 2023 Yunkang Cao, Xiaohao Xu, Zhaoge Liu, Weiming Shen

CDO introduces a margin optimization module and an overlap optimization module to optimize the two key factors determining the localization performance, i. e., the margin and the overlap between the discrepancy distributions (DDs) of normal and abnormal samples.

 Ranked #1 on Anomaly Detection on MVTEC 3D-AD (using extra training data)

Anomaly Detection

SCCAM: Supervised Contrastive Convolutional Attention Mechanism for Ante-hoc Interpretable Fault Diagnosis with Limited Fault Samples

no code implementations3 Feb 2023 Mengxuan Li, Peng Peng, Jingxin Zhang, Hongwei Wang, Weiming Shen

The comprehensive results demonstrate that the proposed SCCAM method can achieve better performance compared with the state-of-the-art methods on fault classification and root cause analysis.

FastATDC: Fast Anomalous Trajectory Detection and Classification

no code implementations23 Jul 2022 Tianle Ni, Jingwei Wang, Yunlong Ma, Shuang Wang, Min Liu, Weiming Shen

Here, we present a careful theoretical and empirical analysis of the ATDC algorithm, showing that the calculation of anomaly scores in both stages can be simplified, and that the second stage of the algorithm is much more important than the first stage.

Classification

Informative knowledge distillation for image anomaly segmentation

1 code implementation Knowledge-Based Systems 2022 Yunkang Cao, Qian Wan, Weiming Shen, Liang Gao

However, rare attention has been paid to the overfitting problem caused by the inconsistency between the capacity of the neural network and the amount of knowledge in this scheme.

Ranked #27 on Anomaly Detection on MVTec AD (Segmentation AUPRO metric)

Anomaly Detection Knowledge Distillation

An Early Fault Detection Method of Rotating Machines Based on Multiple Feature Fusion with Stacking Architecture

no code implementations1 May 2022 Wenbin Song, Di wu, Weiming Shen, Benoit Boulet

One of the key points of EFD is developing a generic model to extract robust and discriminative features from different equipment for early fault detection.

Denoising Fault Detection

Meta-Learning Based Early Fault Detection for Rolling Bearings via Few-Shot Anomaly Detection

no code implementations27 Apr 2022 Wenbin Song, Di wu, Weiming Shen, Benoit Boulet

To address this problem, many transfer learning based EFD methods utilize historical data to learn transferable domain knowledge and conduct early fault detection on new target bearings.

Anomaly Detection Fault Detection +3

Hidden Path Selection Network for Semantic Segmentation of Remote Sensing Images

no code implementations9 Dec 2021 Kunping Yang, Xin-Yi Tong, Gui-Song Xia, Weiming Shen, Liangpei Zhang

Targeting at depicting land covers with pixel-wise semantic categories, semantic segmentation in remote sensing images needs to portray diverse distributions over vast geographical locations, which is difficult to be achieved by the homogeneous pixel-wise forward paths in the architectures of existing deep models.

Semantic Segmentation

Learning to Calibrate Straight Lines for Fisheye Image Rectification

no code implementations CVPR 2019 Zhu-Cun Xue, Nan Xue, Gui-Song Xia, Weiming Shen

This paper presents a new deep-learning based method to simultaneously calibrate the intrinsic parameters of fisheye lens and rectify the distorted images.

Anisotropic-Scale Junction Detection and Matching for Indoor Images

no code implementations16 Mar 2017 Nan Xue, Gui-Song Xia, Xiang Bai, Liangpei Zhang, Weiming Shen

This paper presents a novel approach to junction detection and characterization that exploits the locally anisotropic geometries of a junction and estimates the scales of these geometries using an \emph{a contrario} model.

Junction Detection

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