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arXiv 2408.14329cs.CVcs.AI

面向自适应以人为中心的视频异常检测:一个综合框架与新基准

Towards Adaptive Human-centric Video Anomaly Detection: A Comprehensive Framework and A New Benchmark

University of North Carolina at Charlotte(北卡罗来纳大学夏洛特分校)

Armin Danesh Pazho, Shanle Yao, Ghazal Alinezhad Noghre, Babak Rahimi Ardabili, Vinit Katariya, Hamed Tabkhi

AI总结:

针对以人为中心的视频异常检测面临的行为复杂、异常稀缺、伦理约束等挑战,提出HuVAD隐私增强数据集与UCAL无监督持续学习框架,在多数场景下刷新SOTA。

摘要:

以人为中心的视频异常检测(VAD)旨在识别偏离正常状态的人类行为。就核心而言,以人为中心的VAD面临诸多严峻挑战,例如多样人类行为的复杂性、异常事件的稀缺性以及伦理约束。这些挑战限制了高质量数据集的获取,凸显了对支持持续学习的数据集与框架的需求。为实现自适应以人为中心的VAD,我们提出了HuVAD(以人为中心的隐私增强型视频异常检测)数据集以及一种新型无监督持续异常学习(UCAL)框架。UCAL支持增量学习,使模型能够随时间自适应,打通了传统训练与现实部署之间的壁垒。HuVAD以隐私保护为优先,提供去标识化的标注,涵盖7个室内/室外场景,其带姿态标注的帧数量是此前数据集的5倍以上。我们的标准基准与持续学习基准采用了全面的指标集,实验证明经UCAL增强的模型在82.14%的场景中取得了更优性能,刷新了当前最优水平(SOTA)。该数据集可通过https://github.com/TeCSAR-UNCC/HuVAD获取。

英文摘要:

Human-centric Video Anomaly Detection (VAD) aims to identify human behaviors that deviate from normal. At its core, human-centric VAD faces substantial challenges, such as the complexity of diverse human behaviors, the rarity of anomalies, and ethical constraints. These challenges limit access to high-quality datasets and highlight the need for a dataset and framework supporting continual learning. Moving towards adaptive human-centric VAD, we introduce the HuVAD (Human-centric privacy-enhanced Video Anomaly Detection) dataset and a novel Unsupervised Continual Anomaly Learning (UCAL) framework. UCAL enables incremental learning, allowing models to adapt over time, bridging traditional training and real-world deployment. HuVAD prioritizes privacy by providing de-identified annotations and includes seven indoor/outdoor scenes, offering over 5x more pose-annotated frames than previous datasets. Our standard and continual benchmarks, utilize a comprehensive set of metrics, demonstrating that UCAL-enhanced models achieve superior performance in 82.14% of cases, setting a new state-of-the-art (SOTA). The dataset can be accessed at https://github.com/TeCSAR-UNCC/HuVAD.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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