Abstract
Recent years have witnessed a dramatical growth of the deployment of vision-based surveillance in public spaces. Automatic summarization of surveillance videos (ASOSV) is hence becoming more and more desirable in many real-world applications. For this purpose, a novel frame-selection framework is proposed in the present paper, which has three properties: 1) un-supervision: it can work without requirements of any supervised learning or training; 2) efficiency: it can work very fast, with experiments demonstrating efficiency faster than real-timeness and 3) scalability: it can achieve a hierarchical analysis/overview of video content. The performance of proposed framework is systematically evaluated and compared with various state-of-the-art frame selection techniques on some collected video sequences and publicly-available ViSOR dataset. The experimental results demonstrate promising performance and good applicability for real-world problems.
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