Jingfeng Liu

Enhancing the optical cross section of quantum antenna

2017 · Physical Review A

The classical radio-frequency antenna theory indicates that large cross sections can be realized through directional radiation. In this paper, a similar principle is applied in quantum systems, in which quantum antennas, constructed by a cluster …

Detection of Fights in Videos: A Comparison Study of Anomaly Detection and Action Recognition

2022 · arXiv (Cornell University)

Detection of fights is an important surveillance application in videos. Most existing methods use supervised binary action recognition. Since frame-level annotations are very hard to get for anomaly detection, weakly supervised learning using multiple instance …