| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an X-ray foreign matter detection apparatus capable of: maintaining a threshold value of foreign matter detection in a highly sensitive state; and detecting the foreign matter highly accurately while preventing false detection thereof. <P>SOLUTION: An X-ray foreign matter detection apparatus comprises: an image processing section 50 which executes image processing operations in parallel for plural foreign matter enhancement processing operations performed by combining plural image processing filters, the foreign matter enhancement processing operations being executed for an X-ray image showing an X-ray transmission amount detected by irradiating an inspected body W with an X-ray; plural foreign matter candidate detection sections 61 to 64 which respectively detect foreign matter candidates using predetermined threshold values from respective gray images resulted from the foreign matter enhancement processing operations; and a foreign matter determination section 44 which determines that the foreign matter is present in the inspected body W, when the foreign object candidates are detected by the plural foreign matter candidate detection sections 61 to 64 at the same position in the X-ray image, and also when a combination of the detected foreign matter candidates matches a predetermined combination of the foreign matter candidates for the plural foreign matter enhancement processing operations for determining whether or not the foreign matter is present. <P>COPYRIGHT: (C)2013,JPO&INPIT |
