دانلود مقاله ISI انگلیسی شماره 46257
عنوان فارسی مقاله

کاهش لکه تطبیقی در تصاویر سونوگرافی با استفاده از منطق فازی در ضریب تغییرات

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
46257 2016 11 صفحه PDF سفارش دهید 5670 کلمه
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Adaptive speckle reduction in ultrasound images using fuzzy logic on Coefficient of Variation
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Biomedical Signal Processing and Control, Volume 23, January 2016, Pages 93–103

کلمات کلیدی
منطق فازی - سر و صدا لکه - ضریب تغییر - شباهت ساختاری
پیش نمایش مقاله
پیش نمایش مقاله کاهش لکه تطبیقی در تصاویر سونوگرافی با استفاده از منطق فازی در ضریب تغییرات

چکیده انگلیسی

Speckle reduction is an important pre-processing stage for ultrasound medical image processing. In this paper, an adaptive fuzzy logic approach for speckle noise reduction in ultrasound images is presented. In the proposed method, adaptiveness is incorporated at two levels. In the first level, applying fuzzy logic on the coefficients of variation computed from the noisy image, image regions are classified. The best suitable filter for the particular image region is adaptively selected by the system yielding appreciable improvement in noise suppression and preservation of image structural details. At the second level, to distinguish between edges and noise, the proposed method uses a weighted averaging filter. The structural similarity measure, which depends on the nature of image and quantity of noise present in the image, is used as the tuning parameter. Thus with two levels of adaptiveness, the proposed method has better edge preservation compared to existing methods. Experimental results of the proposed method for natural images, Field II simulated images and real ultrasound images, show that proposed denoising algorithm has better noise suppression and is able to preserve edges and image structural details compared with existing methods.

خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.