نتایج جستجو برای: brain segmentation

تعداد نتایج: 534418  

Journal: :Medical image analysis 2000
Bruno Moretti Mohamed-Jalal Fadili Su Ruan Daniel Bloyet Bernard Mazoyer

This paper presents a new technique for assessing the accuracy of segmentation algorithms, applied to the performance evaluation of brain editing and brain tissue segmentation algorithms for magnetic resonance images. We propose performance evaluation criteria derived from the use of the realistic digital brain phantom Brainweb. This 'ground truth' allows us to build distance-based discrepancy ...

Journal: :J. Inf. Sci. Eng. 2008
Guan-Yu Chen Ying-Cheng Chen Chu-Fang Lin An-Chi Hu Cheng-Chi Wu Yung-Chang Chen

The segmentation of Drosophila mushroom bodies is highly demanded in the Drosophila brain research. In this work, we developed a template-based segmentation system with integration of the 3D average brain model. 3D registration and warping are performed to obtain the initial contours of the snake algorithm for the segmentation procedure. 3D models can be reconstructed from the segmentation resu...

2015
S. Raghu Lakshmi Rajamani

Medical Images are used as an important tool for determination of Pathological condition of the vital organs of the body like brain, lungs, liver, etc. Segmentation is the first step towards automatic processing for analysis and evaluation of medical images. Especially, image segmentation is a prerequisite process for image content understanding in brain MRI for the development of a computer ai...

2007
Alexandra Lauric Sarah Frisken

Unlike research on brain segmentation of Magnetic Resonance Imaging (MRI) data, research on Computed Tomography (CT) brain segmentation is relatively scarce. Because MRI is better at differentiating soft tissue, it is generally preferred over CT for brain imaging. However, in some circumstances, MRI is contraindicated and alternative scanning methods need to be used. We have begun to explore me...

Journal: :journal of biomedical physics and engineering 0
h khastavaneh the university of kashan h ebrahimpour-komleh the university of kashan

background: multiple sclerosis (ms) is a degenerative disease of central nervous system. ms patients have some dead tissues in their brains called ms lesions. mri is an imaging technique sensitive to soft tissues such as brain that shows ms lesions as hyper-intense or hypo-intense signals. since manual segmentation of these lesions is a laborious and time consuming task, automatic segmentation ...

Journal: :CoRR 2013
Sudipta Roy Sanjay Nag Indra Kanta Maitra Samir Kumar Bandyopadhyay

Tumor segmentation from magnetic resonance imaging (MRI) data is an important but time consuming manual task performed by medical experts. Automating this process is a challenging task because of the high diversity in the appearance of tumor tissues among different patients and in many cases similarity with the normal tissues. MRI is an advanced medical imaging technique providing rich informat...

2017
Ashima Anand Harpreet Kaur H. D. Cheng Y. H. Chen B. N. Saha N. Ray J. Jiang Y. Wu M. Huang W. Yang W. F. Chen Ayse Demirhan Mustafa Toru

Segmentation of brain tumor is an example of medical image segmentation that has grown as an emerging area of research in magnetic resonance imaging(MRI). In biomedical imaging, accurate detection of tumor is utmost important for proper clinical practice and treatment. Several techniques have been proposed for brain tumor segmentation, but there is no perfect algorithm proposed yet to enhance t...

2012
P. Hari Krishnan

1106 | P a g e Abstract--Image processing plays an important role in medical field because of its capability. Particularly, image segmentation offer several guides in medical field for analyzing the captured image. Usually, the medical images are captured via different medical image acquisition techniques. The captured image may be affected by noise because of some faults in the capturing devis...

2017
K Bhima

Automatic segmentation and detection of brain tumor is a notoriously complicated issue in Magnetic Resonance Image. The similar state-of-art segmentation methods and techniques are limited for the detection of tumor in multimodal brain MRI. Thus this work deals about the accurate segmentation and detection of tumor in multimodal brain MRI and this research work is focused to improve automatic s...

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