arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2404.04564cs.CVcs.AI
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利用上下文感知增强视频摘要

Enhancing Video Summarization with Context Awareness

Faculty of Information and Technology at the University of Science, VNU-HCM(VNU-HCM 科学大学信息技术学院)

Hai-Dang Huynh-Lam, Ngoc-Phuong Ho-Thi, Minh-Triet Tran, Trung-Nghia Le

AI总结:

针对视频摘要数据集稀缺与评估不足,本文提出利用视频结构信息的无监督、免训练上下文感知框架,并设计人工参与的评估流程,性能优于现有无监督方法且可媲美监督方法。

摘要:

视频摘要是一个重要的研究领域,旨在高效浏览和检索当今海量视频内容中的相关信息。随着多媒体数据的指数级增长,从视频中提取有意义表征的能力已变得至关重要。视频摘要技术通过选择能够捕捉视频本质的关键帧、镜头或片段,自动生成简洁的摘要。这一过程提升了视频监控、教育、娱乐和社交媒体等多种应用的效率与准确性。尽管视频摘要十分重要,但目前仍缺乏多样化且具有代表性的数据集,这妨碍了对算法的全面评估和基准测试。现有评估指标也无法充分体现视频摘要的复杂性,限制了对算法的准确评估,并阻碍了该领域的进展。为克服数据稀缺挑战并改进评估,我们提出一种无监督方法,利用视频数据结构和信息来生成信息丰富的摘要。通过摆脱固定标注,我们的框架能够有效生成具有代表性的摘要。此外,我们引入了一条专为视频摘要定制的创新评估流程。评估中有人类参与者参与,将我们生成的摘要与真实基准摘要进行比较,并评估其信息性。这种以人为中心的方法为所提出技术的有效性提供了宝贵见解。实验结果表明,我们的免训练框架优于现有无监督方法,并且与最先进的监督方法相比取得了具有竞争力的结果。

英文摘要:

Video summarization is a crucial research area that aims to efficiently browse and retrieve relevant information from the vast amount of video content available today. With the exponential growth of multimedia data, the ability to extract meaningful representations from videos has become essential. Video summarization techniques automatically generate concise summaries by selecting keyframes, shots, or segments that capture the video's essence. This process improves the efficiency and accuracy of various applications, including video surveillance, education, entertainment, and social media. Despite the importance of video summarization, there is a lack of diverse and representative datasets, hindering comprehensive evaluation and benchmarking of algorithms. Existing evaluation metrics also fail to fully capture the complexities of video summarization, limiting accurate algorithm assessment and hindering the field's progress. To overcome data scarcity challenges and improve evaluation, we propose an unsupervised approach that leverages video data structure and information for generating informative summaries. By moving away from fixed annotations, our framework can produce representative summaries effectively. Moreover, we introduce an innovative evaluation pipeline tailored specifically for video summarization. Human participants are involved in the evaluation, comparing our generated summaries to ground truth summaries and assessing their informativeness. This human-centric approach provides valuable insights into the effectiveness of our proposed techniques. Experimental results demonstrate that our training-free framework outperforms existing unsupervised approaches and achieves competitive results compared to state-of-the-art supervised methods.

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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