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Proceedings Paper

Coding Shape Details By Means Of Frequency Analysis Of The Boundary
Author(s): A. Grattarola; S. Gaglio; L. Massone; P. Morasso
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Paper Abstract

In this paper an approach to the analysis of boundary details in planar shapes is presented. It is possible to distinguish, in the structure of an object, between a "main structure" and the overlying "details" or "textures"; at this purpose, a complementarity principle for the description of shape is proposed. It is then suggested that the two entities can be separated in terms of frequency analysis, the low frequency component being associated with the main structure, and high frequency components with details/textures. A representation for high-frequency components is proposed, based on the "zero-crossing of details/textures" which extends to the contours of shapes the theorem by Logan.

Paper Details

Date Published: 1 May 1986
PDF: 7 pages
Proc. SPIE 0594, Image Coding, (1 May 1986); doi: 10.1117/12.952214
Show Author Affiliations
A. Grattarola, University of Genova (Italy)
S. Gaglio, University of Genova (Italy)
L. Massone, University of Genova (Italy)
P. Morasso, University of Genova (Italy)

Published in SPIE Proceedings Vol. 0594:
Image Coding
Thomas S. Huang; Murat Kunt, Editor(s)

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