| 摘要 |
<p>An X-ray image picked up at the time of fluoroscopy is used as a reference image. The average value of the product histogram which is obtained by multiplying the histogram of the data corresponding to the image intensity of the reference image and a weight function whose variable is the image intensity is found. The output of the X-ray tube is controlled so that the average value of the product histogram may be a predetermined value.</p> |
