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PanoramaExcerpts: Video Cataloging by Automatic Synthesis and Layout of Panoramic Images

Yukinobu TANIGUCHI, Akihito AKUTSU, Yoshinobu TONOMURA

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Summary :

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.

Publication
IEICE TRANSACTIONS on Information Vol.E83-D No.12 pp.2039-2046
Publication Date
2000/12/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section INVITED PAPER (Special Issue on the 1999 IEICE Excellent Paper Award)
Category
Image Processing, Image Pattern Recognition

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