| 发明名称 | Radiographic apparatus and control method therefor | ||
| 摘要 | A control portion (140) detects pressure information fluctuations applied to a radiation sensor portion (120), acquires a radiation image and an offset image from the radiation sensor portion (120) based on the detected pressure information fluctuations, and makes offset correction of the acquired radiation image using the acquired offset image. | ||
| 申请公布号 | US8817949(B2) | 申请公布日期 | 2014.08.26 |
| 申请号 | US201213537685 | 申请日期 | 2012.06.29 |
| 申请人 | Canon Kabushiki Kaisha | 发明人 | Tsujii Osamu;Inoue Hitoshi;Kobayashi Masaaki |
| 分类号 | G06K9/00;A61B6/00;A61B6/04 | 主分类号 | G06K9/00 |
| 代理机构 | Fitzpatrick, Cella, Harper & Scinto | 代理人 | Fitzpatrick, Cella, Harper & Scinto |
| 主权项 | 1. A radiographic apparatus for applying radiation from a radiation source and taking a radiation image, comprising: a radiation sensor for acquiring a spatial intensity distribution of radiation as two-dimensional image data; a fluctuation detecting unit for detecting fluctuations of the pressure applied to said radiation sensor; and an acquisition unit for acquiring, when a coefficient of pressure fluctuation based on fluctuation information which is output from said fluctuation detecting unit, is smaller than a threshold value, at least one of the radiation image and an offset image based on the two-dimensional image data acquired from said radiation sensor. | ||
| 地址 | Tokyo JP | ||