Method for detection of elements of interest in a digital radiographic image
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United States of America Patent
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Apr 1, 2003
Grant Date -
N/A
app pub date -
Mar 2, 2000
filing date -
Mar 12, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Method of improved detection of elements of interest by means of a detection system in a digital radiographic image of an object, acquired on an acquisition chain, comprising a first calibration phase in which the performances of the detection system are established. For such purpose, a calibration curve with several dimensions is determined by means of a mathematical model of the acquisition chain and object, in order to express a false positive probability as a function of a set of parameters corresponding to the acquisition chain and object. In the course of a second phase of use, a false positive probability value is determined for each pixel of the image. One then selects among the pixels of the digital radiographic image acquired those whose probability value obtained satisfies a predetermined criterion.
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