| 摘要 |
PURPOSE:To output only a proper superimposing onto a monitor by detecting the position deflection between a real image and a load map image by carrying out calculation between the both and controlling an output processing part according to the degree of the position deflection. CONSTITUTION:A load map into which blood vessel contrast medium is poured is taken photograph previously, and stored into an image memory 4. When the photographing for a real image is started, the digital signals supplied from an A/D converter 3 are sent into a position deflection detecting circuit 5, and the subtraction calculation for the concentration of image elements is carried out between the load map image read-out from the image memory 4 and the image which is obtained by shifting the load map by one image in the vertical, lateral, and aslant directions, and the existence of the position deflection between the real image and the load map image or the image having the least position deflection is judged, and only the real image is outputted onto a monitor. A superimposing processing part 6 is controlled by determining if the monitor output in superposition with the load map image is to be performed or not. |
