PanoramaExcerpts : Video Cataloging by Automatic Synthesis and Layout of Panoramic Images(Excellent Paper Originally Published in Japanese)

概要

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Browsing is an important function supporting efficient access to relevant information in video archives. In this paper, we present PanoramaExcerpts-a video browsing interface that shows a catalogue of two types of video icons:panoramic and keyframe icons. A panoramic icon is automatically synthesized from a video segment taken with camera pan or tilt using a camera parameter estimation technique. One keyframe icon is extracted for each shot to supplement the panoramic icons. A panoramic icon represents the entire visible contents of a scene extended with a camera pan or tilt, which is difficult to represent using a single keyframe. A graphical representation, called camera-work trajectory, is also proposed to show the direction and the speed of camera operation. For the automatic generation of PanoramaExcerpts, we propose an approach to integrate the following:(a)a shot-change detection method;(b)a method for locating segments that contain smooth camera operations;(c)a layout method for packing icons in a space-efficient manner. In this paper, we mainly describe(b)and(c)with experimental results.
社団法人電子情報通信学会の論文
2000-12-25