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Proceedings Paper

Adaptive median filter algorithm to remove impulse noise in x-ray and CT images and speckle in ultrasound images
Author(s): Amit R. Sawant; Herbert D. Zeman; Diane M. Muratore; Sanjiv S. Samant; Frank A. DiBianca
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Paper Abstract

An adaptive median filter algorithm to remove impulse noise in x-ray images and speckle in ultrasound images is presented. The ordinary median filter tends to distort or lose fine details in an image. Also, a significant amount of the original information in the image is altered. The proposed algorithm considers the local variability over the entire image to ensure that the fine details are preserved and more than 90 percent of the original information is retained. The robustness of the algorithm is demonstrated by applying it to images from different modalities like diagnostic x-ray, CT, portal imaging and ultrasound.

Paper Details

Date Published: 21 May 1999
PDF: 12 pages
Proc. SPIE 3661, Medical Imaging 1999: Image Processing, (21 May 1999); doi: 10.1117/12.348522
Show Author Affiliations
Amit R. Sawant, Univ. of Tennessee/Memphis (United States)
Herbert D. Zeman, Univ. of Tennessee/Memphis (United States)
Diane M. Muratore, Vanderbilt Univ. (United States)
Sanjiv S. Samant, Univ. of Tennessee/Memphis (United States)
Frank A. DiBianca, Univ. of Tennessee/Memphis (United States)


Published in SPIE Proceedings Vol. 3661:
Medical Imaging 1999: Image Processing
Kenneth M. Hanson, Editor(s)

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