1 August 2001 Local activity indicators for hard-switching adaptive filtering of images with mixed noise
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Optical Engineering, 40(8), (2001). doi:10.1117/1.1385815
Abstract
We present a quantitative analysis of several local activity indicator properties and provide comparisons between them. We illustrate that the considered local activity indicators can be applied as adaptation parameters to locally adaptive hard-switching processing (filtering) of images. The cases where images are corrupted with additive or multiplicative noise having different probability density functions and, possibly, spikes are considered. The advantages of the designed adaptive hard-switching filtering algorithms are discussed and demonstrated for simulated data. Recommendations concerning the selection of local activity indicators and threshold values are given.
Vladimir P. Melnik, Vladimir V. Lukin, Alexander A. Zelensky, Jaakko T. Astola, Pauli Kuosmanen, "Local activity indicators for hard-switching adaptive filtering of images with mixed noise," Optical Engineering 40(8), (1 August 2001). http://dx.doi.org/10.1117/1.1385815
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KEYWORDS
Digital filtering

Image filtering

Optical filters

Nonlinear filtering

Optical engineering

Image processing

Statistical analysis

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