New Quantitative Calculation method of Contrast Values in Slot Scan Image

抄録

The slot scan technology for long-length radiography installed in the fluoroscopic imaging equipment performs continuous radiographing while the X-ray tube and the light-receiving unit simultaneously move in parallel, creating a long-length image. The disadvantage is that the exposure while moving creates a blurred image looking with reduced contrast, contributing to low image quality. Although the cause is related to the combination of exposure time and tube voltage, the conventional contrast improvement method cannot be applied due to the infl uence of blurring, and there is no physical evaluation report, only a visual evaluation report.

In this study, we analyze the blur part and propose a method to calculate the source of the new concept of contrast quantitatively.