| 摘要 |
PROBLEM TO BE SOLVED: To provide an X-ray fluoroscopic photographing apparatus capable of generating a display X-ray image with stable luminance irrespective of a photographed area.SOLUTION: An acquired transmission X-ray image is subjected to image processing so as to acquire a display X-ray image with stable luminance irrespective of a photographed area. In the image processing, the distribution of a pixel value for each frame is analyzed, and using an acquired feature amount, a cycle of fluctuations in the pixel value corresponding to the photographed area of a subject is identified. On the basis of the feature amount and the cycle, each pixel value of the transmission X-ray image for each frame is converted to acquire the display X-ray image.SELECTED DRAWING: Figure 2 |
