| 摘要 |
PURPOSE: To calculate the insertion position of an X-ray compensation filter in photographing from a radiographic image and to automatically insert the X-ray compensation filter to a calculated position. CONSTITUTION: The data of radiographic image outputted from an A/D converter 7 is stored in radiographic image memory 13 connected to the output side of the A/D converter 7 which digitizes an output signal from a televison camera 6, and the insertion position of the X-ray compensation filter 4 in the photographing is calculated by reading out image data from the radiographic image memory 13 by an insertion position calculating means 14 on the poststage, and the insertion control of the X-ray compensation filter to a position calculated by the insertion position calculating means 14 is per formed by a filter controller 15 on the poststage. In this way, the insertion position of the X-ray compensation filter 4 in the photographing can be calculated from the radiographic image, and the X-ray compensation filter 4 can automarically be inserted into the calculated position. |
