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- W4387076007 abstract "Surveillance videos are an essential component of daily life with various critical applications, particularly in public security. However, current surveillance video tasks mainly focus on classifying and localizing anomalous events. Existing methods are limited to detecting and classifying the predefined events with unsatisfactory generalization ability and semantic understanding, although they have obtained considerable performance. To address this issue, we propose constructing the first multimodal surveillance video dataset by manually annotating the real-world surveillance dataset UCF-Crime with fine-grained event content and timing. Our newly annotated dataset, UCA (UCF-Crime Annotation), provides a novel benchmark for multimodal surveillance video analysis. It not only describes events in detailed descriptions but also provides precise temporal grounding of the events in 0.1-second intervals. UCA contains 20,822 sentences, with an average length of 23 words, and its annotated videos are as long as 102 hours. Furthermore, we benchmark the state-of-the-art models of multiple multimodal tasks on this newly created dataset, including temporal sentence grounding in videos, video captioning, and dense video captioning. Through our experiments, we found that mainstream models used in previously publicly available datasets perform poorly on multimodal surveillance video scenarios, which highlights the necessity of constructing this dataset. The link to our dataset and code is provided at: https://github.com/Xuange923/UCA-dataset." @default.
- W4387076007 created "2023-09-27" @default.
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- W4387076007 date "2023-09-25" @default.
- W4387076007 modified "2023-09-28" @default.
- W4387076007 title "UCF-Crime Annotation: A Benchmark for Surveillance Video-and-Language Understanding" @default.
- W4387076007 doi "https://doi.org/10.48550/arxiv.2309.13925" @default.
- W4387076007 hasPublicationYear "2023" @default.
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