نتایج جستجو برای: digital mammogram

تعداد نتایج: 309433  

2012
J. B. JONA

In this paper a CAD (Computer Aided Diagnosis) system is proposed to optimize the feature set using hybrid of Particle Swarm Optimization (PSO) and Genetic Algorithm (GA) technique called Genetical Swarm Optimization (GSO) in Digital Mammogram. Even though PSO is a good optimization technique, it may be trapped in local minima and may prematurely converge. So, the genetic operators are used in ...

2011
Indra Kanta Maitra Sanjay Nag Samir K Bandyopadhyay

Computer Aided Diagnosis (CAD) systems have improved diagnosis of abnormalities in mammogram images. The principal feature within the breast region is the breast contour. Extraction of the breast region and delineation of the breast contour allows the search for abnormalities to be limited to the region of the breast without undue influence from the background of the mammogram. After performing...

1999
Zhuoer Shi DeSheng Zhang Haixiang Wang Donald J. Kouri David K. Hoffman

We proposes an mammogram enhancement technique using interpolating distributed approximating functional (DAF) wavelets, visual group normalization (VGN), softer logic masking (SLM) filtering, and nonlinear sharpening enhancement (ESE) techniques. These are formulated to normalize the wavelet coefficients, remove perceptual redundancy and obtain optimal visualization of the important diagnostic ...

Journal: :JIPS 2017
Sanjeev Kumar Mahesh Chandra

Mammogram images are sensitive in nature and even a minor change in the environment affects the quality of the images. Due to the lack of expert radiologists, it is difficult to interpret the mammogram images. In this paper an algorithm is proposed for a computer-aided diagnosis system, which is based on the wavelet based adaptive sigmoid function. The cascade feed-forward back propagation tech...

ملکوتی, جمیله, لطیف, علی‌محمد , مجیدی, فاطمه , کسائی, حامد ,

Mammography is the most effective method for the early diagnosis of breast cancer diseases. As mammographic images contain low signal to noise ratio and low contrast, it becomes too difficult for radiologists to analyze mammogram. To deal with the above stated problems, it is very important to enhance the mammographic images using image processing methods. This paper introduces a new image enha...

2014
Deepa S. Deshpande Archana M. Rajurkar Ramchandra M. Manthalkar

Breast cancer is the primary and the most common disease found among women. It is responsible for rapid growth in mortality rate among all types of cancers in women. Today, mammography the most powerful screening technique is used for early detection of cancer which increases the chance of successful treatment. Screening with mammography can show changes in the breast up to 2-3years before a ph...

Ahmad Mostaar, Jafar Rezapour Reza Paydar,

Introduction: The amount of doses received in mammography is one of the biggest concerns in the world. According to some statistics, every 12 minutes a woman dies due to breast cancer. Mammography concerned to detect breast cancer at an early stage of the disease as well as for screening, however due to the risk of exposure, the increasingly and widespread use of mammography fo...

ژورنال: پژوهش در پزشکی 2018

Background: The amount of doses received in mammography is one of the biggest concerns in the world. According to some statistics, every 12 minutes a woman dies due to breast cancer. Mammography concerned to detect breast cancer at an early stage of the disease as well as for screening, however due to the risk of exposure, the increasingly and widespread use of mammography for breast cancer scr...

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