| 摘要 |
The method involves placing a calibration object in an X-ray image radiographic system and executing calibration operation. An X-ray image of the calibration object is taken. Projection parameters are derived from the X-ray image. Measurement for difference of the projection parameter of the calibration operation to the other projection parameter of the other calibration operation is calculated for a pair of combinations of calibration operation. A three-dimensional reconstruction is obtained using the projection parameters obtained by the calibration operation. |
