A Repeated Median Filtering Method for Denoising Mammogram Images

A Block-Grouping Method for Image Denoising by Block Matching and 3-D Transform Filtering

Image denoising by block matching and threedimensionaltransform filtering (BM3D) is a two steps state-ofthe-art algorithm that uses the redundancy of similar blocks innoisy image for removing noise. Similar blocks which can havesome overlap are found by a block matching method and groupedto make 3-D blocks for 3-D transform filtering. In this paper wepropose a new block grouping algorithm in th...

Weighted Repeated Median Smoothing and Filtering

Improved Adaptive Median Filter for Denoising Ultrasound Images

This paper presents a fast and easy method to implement denoising of ultrasound images. One of the very important tasks in the field of image processing is the removal of noise from an image. Noise may arise in the process of image acquisition, its transmission and also in the reproduction of an image. There are several approaches regarding the task of denoising, depending on the nature of the ...

A Novel Image Enhancement Method for Mammogram Images

A NOVEL IMAGE ENHANCEMENT METHOD FOR MAMMOGRAM IMAGES Hongda Shen, M.S.T. Western Carolina University (March 2013) Director: Peter C. Tay, PhD Breast cancer has been reported by American Cancer Society as the second leading cause of death among all the cancers of women. It is also reported that the early detection of breast cancer can improve survival rate by allowing a wider range of treatment...

An Adaptive Hierarchical Method Based on Wavelet and Adaptive Filtering for MRI Denoising

MRI is one of the most powerful techniques to study the internal structure of the body. MRI image quality is affected by various noises. Noises in MRI are usually thermal and mainly due to the motion of charged particles in the coil. Noise in MRI images also cause a limitation in the study of visual images as well as computer analysis of the images. In this paper, first, it is proved that proba...