نتایج جستجو برای: medical image

تعداد نتایج: 946243  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی و مهندسی 1390

magnetic resonance imaging (mri) is a notable medical imaging technique that makes of phenomenon of nuclear magnetic resonance. because of the resolution and the technology being harmless, mri has considered as the most desirable imaging technique in clinical applications. the visual quality of mri plays an important role in accuracy of medical delineations that can be seriously degraded by exi...

Journal: :journal of medical signals and sensors 0
monire sheikh hosseini maryam zekri

image classification is an issue which utilizes image processing, pattern recognition and classification methods. automatic medical image classification is a progressive area in image classification and it expected to be more developed in the future. due to this fact that automatic diagnosis which use intelligent methods such as medical image classification can assist pathologists by providing ...

Journal: :iranian journal of medical physics 0
m. s. nambakhsh m. sc. in biomedical engineering, tehran university of medical sciences, tehran, iran. a. ahmadian assistant professor, physics and biomedical engineering dept., tehran university of medical sciences, tehran, iran. research center for science & technology in medicine, imam khomeini hospital, tehran, iran. m. ghavami reader in uwb communications, king’s college london, university of london, center of telecommunications research, london, uk. r. dilmaghani lecturer in uwb communications, king's college london, university of london, center of telecommunications research, london, uk.

introduction:in this study, ecg signals have been embedded into medical images to create a novel blind watermarking method. the embedding is done when the original image is compressed using the ezw algorithm. the extraction process is performed at the decompression time of the watermarked image. materials and methods: the multi-resolution watermarking with a secret key algorithm developed in th...

Journal: :iranian journal of nuclear medicine 2002
m oghabian p kaboli s sarkar

although, most of the abnormal structures of human brain do not alter the shape of outer envelope of brain (surface), some abnormalities can deform the surface extensively. however, this may be a major problem in a surface-based registration technique, since two nearly identical surfaces are required for surface fitting process. a type of verification known as the circularity check for the shap...

Journal: :international journal of advanced design and manufacturing technology 0
sadegh rahmati farzam farahmand farid abbaszadeh

recently, as the result of the development in modern imaging, computerized three dimensional data processing and advanced engineering techniques, an prosthesis that match the skeletal anatomy can be accurately designed from computer aided design (cad) technique and the physical model of prosthesis or skull replica can be produced through rapid prototyping (rp), rapid tooling (rt), and computer ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زبانهای خارجی 1393

the purpose of this study was to examine the english language needs of medical students at tehran university of medical sciences . analysis of the needs took place for three groups: 320 undergraduate students, 30 postgraduate students and 20 university instructors. a triangulation approach to collect data was used in which a combination of the quantitative (using the questionnaires) and qualita...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی ایران 1381

پژوهش حاضر به روش توصیفی و با هدف تحلیل استنادی ماخذ مقالات نشریات علوم پزشکی انگلیسی زبان ایران و تعیین میزان دسترسی رایگان به متن کامل مجلات استناد شده در آنها از طریق سایتهای اینترنت انجام گرفته است. جامعه پژوهش شامل کل استنادهای مقالات دوره 2000 سه نشریه ‏‎medical journal‎‏ ، ‏‎iranian journal of medical sciences‎‏، ‏‎acta medica iranica of islsmic republic of iran‎‏ بوده که این مجلات دارای...

Journal: :iranian journal of public health 0
mohammad jamal khan shankar chelliah mahmod sabri haron

background: role of information source, perceived benefits and risks, and destination image has significantly been examined in travel and tourism literature; however, in medical tourism it is yet to be examined thoroughly. the concept discussed in this article is drawn form well established models in tourism literature. methods: the purpose of this research was to identify the source of informa...

Journal: :journal of medical signals and sensors 0
maryam khanian awat feizi ali davari

improving the quality of medical images at pre and post-surgery operations are necessary for beginning and speeding up the recovery process. partial differential equations (pdes)-based models have become a powerful and well known tool in different areas of image processing such as denoising, multiscale image analysis, edge detection and other fields of image processing and computer vision. in t...

Journal: :Journal of Japan Society for Fuzzy Theory and Intelligent Informatics 2005

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