面向足球视频摘要的叙事性拼图算法

Narrative Collage for Soccer Video Summary

  • 摘要: 利用叙事性拼图优化足球视频摘要的显示,根据精彩事件分析和不同镜头类型的叙事相关性最大化策略抽取候选关键帧,提取不同感兴趣对象为中心定义和重定向感兴趣区域,根据叙事结构中的时-空逻辑构建拼图排列,比随机拼图或故事板能保持更多精彩事件的叙事内容。实验结果显示,叙事性拼图摘要不仅清晰地对精彩事件中的球员动作和人物表情实现了叙事目的,还能在同等显示区域内比故事板描绘更多的叙事内容,也比直接的视频片段快放节约流量,以及节约浏览时间。

     

    Abstract: Collage has been a very popular representation on sparse images set and video disc cover, it presents the most interested key images in a single image with some artistic styles. Narrative collage has been proposed to optimize exploring of the soccer video summary, the selected key frames of the soccer highlights are collaged into a single image to attractive viewer’s attention. A set of candidate key frames are selected according to narrative features of different types of shots being included in a soccer highlight, and the regions of interest are extracted surrounding the user interested objects and retargeted to a clear appearance, Then the collaged arrangement are generated as the spatial-temporal logic to maximize the narrative representation of the ongoing event, which is more suitable for narrative summary on soccer highlights than the results of random collage or storyboard. Experimental results have illustrated that the proposed narrative collage not only succeeds in the summary purpose on narrating the players’ actions and characters’ expression in those highlights, but also depicts more narrative content more than the traditional storyboard in the same display area and consumes less throughput and viewing time than to directly skim several small video clips.

     

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