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arXiv 1710.00568cs.CV
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基于深度卷积神经网络的间接匹配高光检测

Indirect Match Highlights Detection with Deep Convolutional Neural Networks

University of Verona(维罗纳大学);Italian Institute of Technology(意大利理工学院)

Marco Godi, Paolo Rota, Francesco Setti

摘要:

体育视频中的亮点通常是指刺激兴奋或吸引观众注意力的动作。一个很大的努力是花在设计技术,自动发现亮点,以自动化,否则手动编辑过程。大多数最先进的方法试图通过训练一个分类器来解决这个问题,该分类器使用从在比赛场地上玩的球员的类似电视的框架上提取的信息,学习检测由人类观察者根据他们对高光的感知来标记的游戏动作。显然,这是一项漫长而昂贵的工作。在本文中,我们扭转了范式:而不是看游戏,推断什么可能是令人兴奋的观众,我们直接分析观众的行为,我们认为这是由游戏中发生的事件触发。我们应用深度3D卷积神经网络(3D-CNN)从出席活动的支持者的裁剪视频记录中提取视觉特征。属于同一帧的裁剪的输出然后被累加以产生指示高光似然(HL)的值,该值然后被用于区分正样本(即,当高光发生时)和负样本(即,标准播放或超时)。在公开的冰球比赛数据集上的实验结果表明了该方法的有效性,并促进了这一新的令人兴奋的方向的进一步研究。

英文摘要:

Highlights in a sport video are usually referred as actions that stimulate excitement or attract attention of the audience. A big effort is spent in designing techniques which find automatically highlights, in order to automatize the otherwise manual editing process. Most of the state-of-the-art approaches try to solve the problem by training a classifier using the information extracted on the tv-like framing of players playing on the game pitch, learning to detect game actions which are labeled by human observers according to their perception of highlight. Obviously, this is a long and expensive work. In this paper, we reverse the paradigm: instead of looking at the gameplay, inferring what could be exciting for the audience, we directly analyze the audience behavior, which we assume is triggered by events happening during the game. We apply deep 3D Convolutional Neural Network (3D-CNN) to extract visual features from cropped video recordings of the supporters that are attending the event. Outputs of the crops belonging to the same frame are then accumulated to produce a value indicating the Highlight Likelihood (HL) which is then used to discriminate between positive (i.e. when a highlight occurs) and negative samples (i.e. standard play or time-outs). Experimental results on a public dataset of ice-hockey matches demonstrate the effectiveness of our method and promote further research in this new exciting direction.

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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