A Spatial User Interface for Browsing Video Key Frames (データベースシステム・情報学基礎合同研究報告テーマ:マルチメディアコンテンツ管理:映像情報のモデリング・検索・データベース構築,および一般)

概要

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Key frames provide a visual summary for a user to grasp the contents of a video without having to view it. The most common method to extract keyframes from a video stream is known as scene change detection. We argue that this method is inappropriate when extracting keyframes from video images of sports footage such as a soccer game. This is because the inter-frame differences are very small and hard to detect in such video data. In this paper, we introduce a method to dynamically extract keyframes from video images of a soccer game. The keyframes were extracted based on the ball's positional information and changes in the video frame's pixel level intensity. We also propose a method to visualize the positional changes between keyframes using an animation sequence. Finally by using this animation sequence we developed a method to browse soccer video images after segmenting it into units we call plays.
一般社団法人情報処理学会の論文
2002-05-21