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A multi-parameter persistence framework for mathematical morphology
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DOI：10.1038/s41598-022-09464-7.png)
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Abstract
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The field of mathematical morphology offers well-studied techniques for image processing and is applicable for studies ranging from materials science to ecological pattern formation. In this work, we view morphological operations through the lens of persistent homology, a tool at the heart of the field of topological data analysis. We demonstrate that morphological operations naturally form a multiparameter filtration and that persistent homology can then be used to extract information about both topology and geometry in the images as well as to automate methods for optimizing the study and rendering of structure in images. For illustration, we develop an automated approach that utilizes this framework to denoise binary, grayscale, and color images with salt and pepper and larger spatial scale noise. We measure our example unsupervised denoising approach to state-of-the-art supervised, deep learning methods to show that our results are comparable.
Keywords:
DISCRETE MORSE
EFFICIENT COMPUTATION
DEEP CNN
TOPOLOGY
SALT
ALGORITHMS
COMPLEXES
HOMOLOGY
FILTER
NOISE
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