| 摘要 |
PROBLEM TO BE SOLVED: To provide a method allowing correction of an irradiation filed region, which is intuitively intelligible and easy to an operator, when having made an error in irradiation filed recognition.SOLUTION: An irradiation field recognition apparatus acquiring information about a contour of an irradiation filed region irradiated with radiation from an image obtained by a radiation sensor includes: an acquisition means acquiring coordinates on the image input by an operator; and an irradiation field recognition means obtaining the information about the contour from a range on the image restricted by the coordinates. |
