نتایج جستجو برای: medical image processing

تعداد نتایج: 1359323  

2013
Kamaljeet Kaur

Image processing plays a vital role in the development of medical industry especially ultrasound medical images. Image acquisition is carried out using ultrasound equipments like transducer, scanner, and CPU and display device. There are mainly four modes of ultrasound imaging A-mode, M-mode, B-mode and Doppler-mode. Ultrasound imaging plays crucial role in medical imaging due to its non-invasi...

Journal: :bulletin of the iranian mathematical society 0
a. arefijammal department of mathematics and computer sciences‎, ‎hakim sabzevari university‎, ‎sabzevar‎, ‎iran. e. zekaee department of mathematics‎, ‎shahrood university of‎ ‎technology‎, ‎shahrood‎, ‎iran.

‎we present an application of the dual gabor frames to image‎ ‎processing‎. ‎our algorithm is based on finding some dual gabor‎ ‎frame generators which reconstructs accurately the elements of the‎ ‎underlying hilbert space‎. ‎the advantages of these duals‎ ‎constructed by a polynomial of gabor frame generators are compared‎ ‎with their canonical dual‎.

2013
R. Manikandan

Image Processing is one of the emergent research areas today. Medical image processing is the most challenging and highly wanted field in that. Brain tumor detection in Magnetic resonance imaging (MRI) has become an emergent area in the field of medical image processing. Segmentation of images is one of the most difficult tasks thus holds an important position in image processing which determin...

Journal: :بینا 0
امین­اله مه­آبادی a mahabadi تهران- خیابان کارگر شمالی- پلاک 117- مرکز تحقیقات مهندسی و فن آوری دانشگاه شاهد اصغر میرزایی a mirzaei تهران- خیابان کارگر شمالی- پلاک 117- مرکز تحقیقات مهندسی و فن آوری دانشگاه شاهد

purpose: to present a new reliable and accurate iris recognition method applicable in identification systems. methods: the system was implemented and tested on 876 standard iris images (daugman iris images database) from 876 persons of different nationalities via image processing techniques. results: false accept reject (far) and false reject reject (frr) were smaller in our suggested method as...

Journal: :The Journal of the Institute of Television Engineers of Japan 1992

2014
G.Anil Kumar

Medical image processing needs continuous enhancements in terms of techniques and applications to help improve quality of services in health care industry. The techniques used for interpolation, image registration, compression, medical diagnosis are to be improved to be abreast with growing demands in the industry and emerging technologies pertaining to mobile computing and cloud computing. In ...

Journal: :IEICE Transactions 2010
Cheng Lu Mrinal K. Mandal

Accurate registration is crucial for medical image analysis. In this letter, we proposed an improved Demons technique (IDT) for medical image registration. The IDT improves registration quality using orthogonal gradient information. The advantage of the proposed IDT is assessed using 14 medical image pairs. Experimental results show that the proposed technique provides about 8% improvement over...

Journal: :journal of medical signals and sensors 0
hamed heravi afshin ebrahimi ehsan olyaee

gait contains important information about the status of the human body and physiological signs. in many medical applications, it isimportant to monitor and accurately analyze the gait of the patient. since walking shows the reproducibility signs in several phases,separating these phases can be used for the gait analysis. in this study, a method based on image processing for extracting phases of...

Journal: :journal of the structural engineering and geotechnics 0
mohammad reza fadaei tehrani research assistant in isfahan higher education and research institute (iheari), isfahan, iran raheleh feizy science and research branch, islamic azad university, tehran, iran hooman jahanianc department of civil engineering, college of civil engineering & surveying, qazvin branch, islamic azad universiry, qazvin, iran

this paper presents a simple yet powerful original approach for approximating dispersivity in porous media. the key to this approach is both use of least-squares criterion and image processing technique. two dimensional transparent models, including horizontal and vertical configurations, under different combinations of grain sizes and pore velocities, experimented. concentration data were obta...

Journal: :journal of agricultural science and technology 2012
s. kiani a. jafari

development of an autonomous weeding machine requires a vision system capable of detecting and locating the position of the crop. it is important for the vision system to be able to recognize the accurate position of the crop stem to be protected during weeding. several shape features of corn plants and common weed species in the location were extracted by means of morphological operations. eff...

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