Presentation 1997/2/21
Description of Structured Abstract Index Images with Cubic Bezier Surface Tubes in Spatiotemporal Images
Katsunori UCHIBORI, Takeshi NAEMURA, Masahide KANEKO, Hiroshi HARASHIMA,
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Abstract(in English) This paper proposes a new description method of spatiotemporal images based on the concept of structured abstract index images. In spatiotemporal images, each region in an image sequence forms a tube. An original image sequence can be reconstructed by cutting out the sequence of cross sections from the group of tubes in spatiotemporal images. That is, a moving image sequence can be described compactly by the group of tubes. This paper first discusses the approximation of static contours by Bezier curves. The approximation of surface tubes by Bezier surface is examined in detail. In the case that the shape of cross section changes largely along the time axis, these methods do not work well. This problem can be solved by growing a new Bezier surface from passing points of Bezier curve and by combining multiple Bezier surfaces.
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Keyword(in English) Spatiotemporal images / Structured abstract index images / Bezier curve / Bezier surface
Paper # IE96-137
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Committee IE
Conference Date 1997/2/21(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Description of Structured Abstract Index Images with Cubic Bezier Surface Tubes in Spatiotemporal Images
Sub Title (in English)
Keyword(1) Spatiotemporal images
Keyword(2) Structured abstract index images
Keyword(3) Bezier curve
Keyword(4) Bezier surface
1st Author's Name Katsunori UCHIBORI
1st Author's Affiliation Hitachi Technical College, Hitachi Ltd.()
2nd Author's Name Takeshi NAEMURA
2nd Author's Affiliation School of Engineering, The University of Tokyo
3rd Author's Name Masahide KANEKO
3rd Author's Affiliation School of Engineering, The University of Tokyo
4th Author's Name Hiroshi HARASHIMA
4th Author's Affiliation School of Engineering, The University of Tokyo
Date 1997/2/21
Paper # IE96-137
Volume (vol) vol.96
Number (no) 544
Page pp.pp.-
#Pages 7
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