Search Results for author: Hui Lv

Found 6 papers, 3 papers with code

Video Anomaly Detection and Explanation via Large Language Models

no code implementations11 Jan 2024 Hui Lv, Qianru Sun

Video Anomaly Detection (VAD) aims to localize abnormal events on the timeline of long-range surveillance videos.

Anomaly Detection Video Anomaly Detection

Unbiased Multiple Instance Learning for Weakly Supervised Video Anomaly Detection

1 code implementation CVPR 2023 Hui Lv, Zhongqi Yue, Qianru Sun, Bin Luo, Zhen Cui, Hanwang Zhang

At each MIL training iteration, we use the current detector to divide the samples into two groups with different context biases: the most confident abnormal/normal snippets and the rest ambiguous ones.

Anomaly Detection Multiple Instance Learning +1

Spatio-Temporal Relation Learning for Video Anomaly Detection

no code implementations27 Sep 2022 Hui Lv, Zhen Cui, Biao Wang, Jian Yang

Anomaly identification is highly dependent on the relationship between the object and the scene, as different/same object actions in same/different scenes may lead to various degrees of normality and anomaly.

Anomaly Detection Knowledge Graph Embedding +5

Global Information Guided Video Anomaly Detection

no code implementations14 Apr 2021 Hui Lv, Chunyan Xu, Zhen Cui

Video anomaly detection (VAD) is currently a challenging task due to the complexity of anomaly as well as the lack of labor-intensive temporal annotations.

Anomaly Detection Video Anomaly Detection

Learning Normal Dynamics in Videos with Meta Prototype Network

1 code implementation CVPR 2021 Hui Lv, Chen Chen, Zhen Cui, Chunyan Xu, Yong Li, Jian Yang

Frame reconstruction (current or future frame) based on Auto-Encoder (AE) is a popular method for video anomaly detection.

Anomaly Detection Meta-Learning +1

Localizing Anomalies from Weakly-Labeled Videos

1 code implementation20 Aug 2020 Hui Lv, Chuanwei Zhou, Chunyan Xu, Zhen Cui, Jian Yang

In addition, in order to fully utilize the spatial context information, the immediate semantics are directly derived from the segment representations.

Anomaly Detection In Surveillance Videos Video Anomaly Detection

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