To provide a radiographic device capable of accurately detecting defective pixels considering characteristics of an image.
If the radiographic device has a flat panel X-ray detector (FPD), a pixel value collection part 21 collects the pixel values based on X-ray detection signals detected in the non-irradiated state, and extracts a plurality of pixel values in the direction along the data bus line out of the pixel values collected by the pixel value collection part 21 and averaged between frames by an averaging part 22. A median filter 23 median-filters the extracted plurality of pixel values, and the obtained median in the direction along the data bus line 39 and the averaged pixel values between frames are compared with each other. Then, based on the result of comparison of the median and the pixel values, a defective pixel detection part 24 detects defective pixels. In this way, the defective pixels can be accurately detected by considering characteristics of the image.
COPYRIGHT: (C)2009,JPO&INPIT
Keiichi Fujii
Shinya Hirasawa
| JP2008252564A | ||||
| JP2006234557A | ||||
| JP2007054527A |
Hiroyuki Todaka