Methods for CT Automatic Exposure Control Protocol Translation Between Scanner Platforms
نویسندگان
چکیده
منابع مشابه
Automatic exposure control in CT: applications and limitations.
Tube current (mA) is one of the key technical scanning parameters for adjusting radiation dose in CT. To optimize radiation dose in CT, users can adjust mA either with manually selected mA values or with the application of automatic exposure control (AEC). The latter technique refers to automatic adaptation of mA on the basis of userspecified image quality and x-ray attenuation characteristics ...
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It is commonplace to use digital video cameras in robotic applications. These cameras have built-in exposure control but they do not have any knowledge of the environment, the lens being used, the important areas of the image and do not always produce optimal image exposure. Therefore, it is desirable and often necessary to control the exposure off the camera. In this paper we present a scheme ...
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امروزه استفاده از منابع انرژی پراکنده کاربرد وسیعی یافته است . اگر چه این منابع بسیاری از مشکلات شبکه را حل می کنند اما زیاد شدن آنها مسائل فراوانی برای سیستم قدرت به همراه دارد . استفاده از میکروشبکه راه حلی است که علاوه بر استفاده از مزایای منابع انرژی پراکنده برخی از مشکلات ایجاد شده توسط آنها را نیز منتفی می کند . همچنین میکروشبکه ها کیفیت برق و قابلیت اطمینان تامین انرژی مشترکان را افزایش ...
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The study purpose was to develop and validate a quality assurance test for CT automatic exposure control (AEC) systems based on a set of nested polymethylmethacrylate CTDI phantoms. The test phantom was created by offsetting the 16 cm head phantom within the 32 cm body annulus, thus creating a three part phantom. This was scanned at all acceptance, routine, and some nonroutine quality assurance...
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We introduce a novel method to automatically adjust camera exposure for image processing and computer vision applications of mobile robot platforms. Since most image processing algorithms heavily rely on low-level image features, which are largely based on local gradient information, we consider a gradient quantity to determine a proper exposure level, so that a camera is able to capture import...
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ژورنال
عنوان ژورنال: Journal of the American College of Radiology
سال: 2014
ISSN: 1546-1440
DOI: 10.1016/j.jacr.2013.10.014