Impulse noise detection technique based on fuzzy set

Ananthi, V.P. and Balasubramaniam, Pagavathi and Paramesran, Raveendran (2018) Impulse noise detection technique based on fuzzy set. IET Signal Processing, 12 (1). pp. 12-21. ISSN 1751-9675, DOI

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In this study, a new fuzzy-based technique is introduced for denoising images corrupted by impulse noise. The proposed method is based on the intuitionistic fuzzy set (IFS), in which the degree of hesitation plays an important role. The degree of hesitation of the pixels is obtained from the values of memberships of the object and the background of the image. After minimising the obtained hesitation function, the IFS is constructed and the noisy pixels are detected outside the neighbourhood of mean intensity of the object and the background of an image. Denoised images are relatively analysed with five other methods: modified decision-based unsymmetric trimmed median filter, noise adaptive fuzzy switched median filter, adaptive fuzzy switching weighted average filter, adaptive weighted mean filter, iterative alpha trimmed mean filter. Performances of the proposed method along with these five state-of the-art methods are evaluated using a peak signal-to-noise ratio and error rate along with the time for computation. Experimentally, derived denoising method showed an improved performance than five other existing techniques in filtering noise in images due to the reduction of uncertainty while choosing the noisy pixels.

Item Type: Article
Uncontrolled Keywords: Alpha-trimmed mean filters; Denoising methods; Impulse noise detection; Intuitionistic fuzzy sets; Mean intensity; Peak signal to noise ratio; Weighted averages; Weighted mean filter
Subjects: Q Science > QA Mathematics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 20 Sep 2019 06:18
Last Modified: 20 Sep 2019 06:18

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