| US 7,492,936 B2 | ||
| Radiographic image capturing apparatus | ||
| Hitoshi Inoue, Yokohama (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Apr. 22, 2005, as Appl. No. 11/111,901. | ||
| Claims priority of application No. 2004-136018 (JP), filed on Apr. 30, 2004. | ||
| Prior Publication US 2005/0244044 A1, Nov. 03, 2005 | ||
| Int. Cl. G06K 9/00 (2006.01) | ||
| U.S. Cl. 382—128 | 15 Claims |
| 1. A radiographic image capturing apparatus comprising:
a capturing unit configured to capture consecutive radiographic images on the basis of a radiation intensity distribution
transmitted through a subject;
an extraction unit configured to extract lung field parts from the consecutive radiographic images captured by said capturing
unit; and
a determination unit configured to detect a fluctuation condition from the lung field parts extracted by said extraction unit,
and determine on the basis of the detected fluctuation condition if a respiratory condition of the subject is suited to radiograph
a respiratory behavior.
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