Method for dynamic range management of digital radiographic images
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United States of America Patent
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-
Jun 18, 2002
Grant Date -
Dec 6, 2001
app pub date -
Dec 29, 2000
filing date -
Apr 29, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In an X-ray imaging system comprising an X-ray source, a digital X-ray detector and a display device, an arrangement is provided for setting or establishing the dynamic range of the image at the display device. The detector is operated to provide a set of count values representing X-ray image data acquired by the detector from an object of imaging, and a set of standardized values, such as optical density values, is derived from the count values. The optical density values collectively define a range of optical density values, and the dynamic range of the display device is mapped thereto. The display device is enabled to present an image of the object which appears similar to or substantially the same as an image of the object presented by, for example, a specified analog X-ray film.
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