1 May 1986 Coding Shape Details By Means Of Frequency Analysis Of The Boundary
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Proceedings Volume 0594, Image Coding; (1986); doi: 10.1117/12.952214
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France
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.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Grattarola, S. Gaglio, L. Massone, P. Morasso, "Coding Shape Details By Means Of Frequency Analysis Of The Boundary", Proc. SPIE 0594, Image Coding, (1 May 1986); doi: 10.1117/12.952214; https://doi.org/10.1117/12.952214
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KEYWORDS
Image compression

Shape analysis

Image filtering

Bandpass filters

Electronic filtering

Gaussian filters

Spatial frequencies

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