نتایج جستجو برای: segmentation method

تعداد نتایج: 1673529  

2009
Jing Cui Berkman Sahiner Heang-Ping Chan Alexis Nees Chintana Paramagul Lubomir M. Hadjiiski Chuan Zhou Jiazheng Shi

Segmentation of masses is the first step in most computer-aided diagnosis (CAD) systems for characterization of breast masses as malignant or benign. In this study, we designed an automated method for segmentation of masses on ultrasound (US) images. The method automatically estimated an initial contour based on a manually-identified point approximately at the mass center. A two-stage active co...

Journal: :Computational and Mathematical Methods in Medicine 2014

Journal: :Nonlinear Analysis: Theory, Methods & Applications 2009

2012
YUE ZHAO XIN XU CHAO CHEN YAN ZHAO

This paper proposed a rapid level sets method based on HIS color space for the color image segmentation. First, we adopt the method of rapid level sets based on CV mode to improve the segmentation speed. Second, the segmentation of color image can be made with the introduction of the concept of color difference under HIS color mode. In this case, the segmentation can be made exactly even the gr...

Journal: :JASIST 2005
Christopher C. Yang Kar Wing Li

The authors propose a heuristic method for Chinese automatic text segmentation based on a statistical approach. This method is developed based on statistical information about the association among adjacent characters in Chinese text. Mutual information of bi-grams and significant estimation of tri-grams are utilized. A heuristic method with six rules is then proposed to determine the segmentat...

2000
Anne-Sophie Capelle-Laizé Olivier Alata C. Fernandez Sébastien Lefèvre J. C. Ferrie

In this paper, we present a new automatic segmentation method for magnetic resonance images. The aim of this segmentation is to divide the brain into homogeneous regions and to detect the presence of tumors. Our method is divided into two parts. First, we make a pre-segmentation to extract the brain from the head. Then, a second segmentation is done inside the brain. Several techniques are comb...

Journal: :Journal of Electronic Imaging 2006

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