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Indragandhi, M. P.
- A Novel Framework for Pelvic Bone Fracture Detection using Computed Tomography Images
Authors
1 Department of Computer Science, Mother Teresa Womens University, Kodaikanal, IN
Source
Digital Image Processing, Vol 6, No 2 (2014), Pagination:Abstract
Medical images such asComputed Tomography (CT) images contain a significantamount of information, and it is crucial for physicians tomake diagnostic decisions as well as treatment planning onthe basis of this information and other patients‟ data. Currently,a large portion of the data is not optimally and comprehensivelyutilized, because information held in the data isinaccessible through visual observation or simple traditionalcomputationalmethods. Information contained in pelvic CTimages is a very important resource for the assessment of theseverity and prognosis of the injuries. Each pelvic CT scan consists of several slices; each slice contains a large amount ofdata that may not be thoroughly and accurately analyzed viavisual inspection. In addition, in the field of trauma, physiciansfrequently need to make quick decisions based on largeamount of information.From the experimental results, it is evident that the proposed model produces images, which are visually clean and smooth, in fast manner.Keywords
Computed Tomography (CT), Pelvic Bone, and Image Denoising.
- An Efficient MRI Brain Image Segmentation and Classification
Authors
1 Department of Computer Science, Mother Teresa Womens University, Kodaikanal, IN
Source
Digital Image Processing, Vol 6, No 2 (2014), Pagination:Abstract
Image segmentation is a vital part of image processing. Segmentation has its application widespread in the field of medical images in order to diagnose curious diseases. The same medical images can be segmented manually. But the accuracy of image segmentation using the segmentation algorithms is more when compared with the manual segmentation. In the field of medical diagnosis an extensive diversity of imaging techniques is presently available, such as radiography, computed tomography (CT) and magnetic resonance imaging (MRI).Medical image segmentation is an essential step for most consequent image analysis tasks. Although the original FCM algorithm yields good results for segmenting noise free images, it fails to segment images corrupted by noise, outliers and other imaging artifact. This paper presents an image segmentation approach using Modified Fuzzy C-Means (FCM) algorithm and Fuzzy Possibilistic c-means algorithm (FPCM). This approach is a generalized version of standard Fuzzy C-Means Clustering (FCM) algorithm. The limitation of the conventional FCM technique is eliminated in modifying the standard technique. The Modified FCM algorithm is formulated by modifying the distance measurement of the standard FCM algorithm to permit the labeling of a pixel to be influenced by other pixels and to restrain the noise effect during segmentation. Instead of having one term in the objective function, a second term is included, forcing the membership to be as high as possible without a maximum limit constraint of one. Experiments are conducted on real images to investigate the performance of the proposed modified FCM technique in segmenting the medical images. Standard FCM, Modified FCM, Fuzzy Possibilistic C-Means algorithm (FPCM) are compared to explore the accuracy of our proposed approach. Support Vector Machine classifiers is used in the proposed approach for classifying segmented image as it is more efficient particularly in dealing with large classification problems.