Fast dilation and erosion of time-varying grey-valued images with uncertainty

Phillip A. Laplante; Charles Robert Giardina

doi:10.1117/12.46124

1 July 1991 Fast dilation and erosion of time-varying grey-valued images with uncertainty

Phillip A. Laplante, Charles Robert Giardina

Proceedings Volume 1568, Image Algebra and Morphological Image Processing II; (1991) https://doi.org/10.1117/12.46124
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

Two of the most important basic morphological operations used in image filtering are erosion and dilation. In this paper the authors consider the case when a finite image is part of a pixel display which changes ate discrete times. Taking advantage of the fact that not all pixels will change from time t to time t + 1, they develop two important algorithms for computing the dilation and erosion of such images in o(n2) less time then with brute force. These results hold also for translation and rotation and can be extended to opening and closing of images by structuring elements. These results are also extended to images which contain multi-uncertain values, that is, the extended fuzzy pointing set. The advantages of these fast operations are obvious in on-the-fly image processing schemes such as real-time filtering of images.

Citation Download Citation

Phillip A. Laplante and Charles Robert Giardina "Fast dilation and erosion of time-varying grey-valued images with uncertainty", Proc. SPIE 1568, Image Algebra and Morphological Image Processing II, (1 July 1991); https://doi.org/10.1117/12.46124

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