نتایج جستجو برای: direct digital radiography rvg
تعداد نتایج: 738005 فیلتر نتایج به سال:
Register Vector Grammar is a new kind of f in i te -s ta te automaton that is sensitive to context—without, of course, being contextsensitive in the sense of Chomsky hierarchy. Traditional automata are functionally simple: symbols match by identi ty and change by replacement. RVG is functionally complex: ternary feature vectors (e.g. +-±--++) match and change by masking ( + matches but does not...
Background and Aims: Pulpal exposures originated from the external cervical root resorptions have major effects on the treatment and prognosis. Therefore, the aim of this study was performed to compare the two different imaging systems-digital radiography with PSP (Photostimulable Phosphor) sensor in three horizontal different views and CBCT (cone beam computed tomography) images to assess the ...
Digital radiography is gaining in popularity and many dentists are considering changing from a film-based system to this new technology. Dentists must clearly define their objectives for adopting digital radiography and be aware of the problems that may be encountered with this equipment, so that they can make an informed purchasing decision. This article provides an overview of digital radiogr...
Real time imaging in the field of industrial radiography arrived over half a century ago and even before that in medical radiography. All the progress in the field for first 30 – 35 years produced analog images. Digital images have come only recently. Fluorescent screens, proximity focus intensifier and then electromagnetically focused Image Intensifier produced real time images in analog. They...
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