نتایج جستجو برای: pmmw images

تعداد نتایج: 262095  

Journal: :iranian journal of radiation research 0
s. rabie mahdavi department of medical physics, babol university of medical sciences, babol, iran a. shirazi department of biophysics, faculty of medicine, tehran university of medical sciences, tehran, iran d. sardari department of biophysics, faculty of medicine, tehran university of medical sciences, tehran, iran l. sadri azad research and science university, tehran, iran

abstractbackground: delivering the radiation dose to the target volume and minimizing the dose to normal tissues are the main objectives in radiotherapy. the aim of our study is to enhance the contrast of the portal image to increase the accuracy of delineation of the organs in the irradiation field.   methods: the software was written based on local enhancement of the pixel values in image mat...

Introduction: Radiation therapy planning (RTP) is one of the clinical applications in which both CT scan and MRI are used. MR and CT images are applied to determine the target volume and calculation of dose distribution, respectively. In addition, using two imaging modalities increases the department workload and cost. In this study, an algorithm was presented to create synthet...

Journal: :Bulletin of the London Mathematical Society 2004

ابوالحسنی, محمدجواد, سرکار, سعید, عزیزیان, غلامرضا,

Ultrasound imaging is one of the common methods in medical diagnostic    systems. There are many artifacts in a two dimentional image. Three dimentional    imaging can be used for better interpretation and perception of an image. Since    1969 many attemps have been made in this regards, and research continues all    over the world. The main goal in...

Snow cover area is one of the most important criteria to calculate snow melt runoff. This can have an effect on the biology of the plant and the environment of a region. Using the catchment basin physical characteristic to calculate snow cover area is a conventional method, though its accuracy is not good enough. Most of the useful methods in calculating snow cover area are based on satellite i...

Snow cover area is one of the most important criteria to calculate snow melt runoff. This can have an effect on the biology of the plant and the environment of a region. Using the catchment basin physical characteristic to calculate snow cover area is a conventional method, though its accuracy is not good enough. Most of the useful methods in calculating snow cover area are based on satellite i...

ژورنال: کیمیای هنر 2021

Images and photos play an important role in our understanding of domestic and international events. Today we are living in the age of the visualization of politics. The images are vague, rhetorical, and aesthetic components of political and social phenomena and can give them a beautiful or detestable structure. In the digital age, images in and of themselves can define our structure and vision ...

Introduction: Cardiovascular diseases are one of the leading causes of mortality in today’s industrial world. Occlusion of left atrial appendage (LAA) using the manufactured devices is a growing trend. The objective of this study was to develop a computer-aided diagnosis system for the identification of LAA in echocardiographic images. Method: The data used in this descriptive analytical study ...

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