Patent ID: 7315311

Claim:
A radiographic image processing apparatus comprising: a first input unit adapted to input a first pair of points on a first radiographic image; a second input unit adapted to input one of a second pair of points on a second radiographic image after input of the first pair of points; a display unit adapted to display an arc line on the second radiographic image, based on a distance between the first pair of points on the first radiographic image while centering on one of the second pair of points after input of one of the second pair of points; a third input unit adapted to input the other of the second pair of points on the arc line; a shift unit adapted to shift one of the first and second radiographic images to coincide the first pair of points and the second pair of points; and an image synthesis unit adapted to synthesize the first and second radiographic images by using one of the first and second radiographic images shifted by said shift unit.