Paper Info
Title
PanoramaExcerpts: extracting and packing panoramas for video browsing
Abstract
Browsing is a fundamental function in multimedia systems. This paper presents PanoramaExcerpts - a video browsing interface that shows a catalogue of two types of video icons: panoramic and keyframe icons. A panoramic icon is synthesized from a video segment taken with camera pan or tilt, and extracted using a camera operation estimation technique. A keyframe icon is extracted to supplement the panoramic icons; a shot-change detection algorithm is used. A panoramic icon represents the entire visible contents of a scene extended with camera pan or tilt, which is difficult to summarize using a single keyframe. For the automatic generation of PanoramaExcerpts, we propose an approach to integrate the following: (a) a shot-change detection method that detects instantaneous cuts as well as dissolves, with adaptive control over the sampling rate for efficient processing; (b) a method for locating segments that contain smooth camera pans or tilts, from which the panoramic icons can be synthesized; and (c) a layout method for packing icons in a space-efficient manner. We also describe the experimental results of the above three methods and the potential applications of PanoramaExcerpts.
Year
DOI
Venue
1997
10.1145/266180.266396
ACM Multimedia 2001
Keywords
Field
DocType
video browsing,change detection,adaptive control
Video browsing,Computer vision,Video processing,Video post-processing,Video capture,Computer science,Multiview Video Coding,Video tracking,Smacker video,Artificial intelligence,Multimedia,Uncompressed video
Conference
ISBN
Citations 
PageRank 
0-89791-991-2
69
8.32
References 
Authors
19
3
Name
Order
Citations
PageRank
Yukinobu Taniguchi125443.12
Akihito Akutsu230877.61
Yoshinobu Tonomura3554149.46