no code implementations • 15 May 2024 • Kai Hu, Weichen Yu, Tianjun Yao, Xiang Li, Wenhe Liu, Lijun Yu, Yining Li, Kai Chen, Zhiqiang Shen, Matt Fredrikson
Our approach relaxes the discrete jailbreak optimization into a continuous optimization and progressively increases the sparsity of the optimizing vectors.
1 code implementation • ECCV 2022 • Yijun Qian, Lijun Yu, Wenhe Liu, and Alexander G. Hauptmann
However, due to the complexity of actions, it remains challenging to transfer knowledge learned from source to target action domains.
Ranked #10 on Zero-Shot Action Recognition on Kinetics
no code implementations • 14 Jan 2022 • Lijun Yu, Yijun Qian, Wenhe Liu, Alexander G. Hauptmann
Activity detection is one of the attractive computer vision tasks to exploit the video streams captured by widely installed cameras.
1 code implementation • Proceedings of the IEEE Winter Conference on Applications of Computer Vision Workshops 2020 • Wenhe Liu, Guoliang Kang, Po-Yao Huang, Xiaojun Chang, Yijun Qian, Junwei Liang, Liangke Gui, Jing Wen, Peng Chen
We propose an Efficient Activity Detection System, Argus, for Extended Video Analysis in the surveillance scenario.
no code implementations • 1 Feb 2020 • Lijun Yu, Peng Chen, Wenhe Liu, Guoliang Kang, Alexander G. Hauptmann
To deal with the aforementioned problems, in this paper, we propose a training-free monocular 3D event detection system for traffic surveillance.