| 摘要 |
<p>PURPOSE: An image processor, an image processing method, and a computer-readable storage medium are provided to effectively reduce streak artifacts due to a high absorbing body without image indistinctness when reconfiguring a tomographic image with filtered back projection. CONSTITUTION: An image processor(100) includes an obtaining unit, a reconfiguring unit, and a processing unit. The obtaining unit obtains multiple radiation projected images from a digital radiation detector. The reconfiguring unit filters the radiation projected images using a reconfiguring filter, and implements a reconfiguring process for generating a tomographic image based on the obtained radiation projected images. The processing unit reduces the effect of a second pixel on a first pixel value when a difference value between the first pixel value and a second pixel value is larger than a predetermined critical value in the radiation projected image supplied to the reconfiguring unit. [Reference numerals] (104) Photographing control unit; (105) Tool control unit; (107) X ray generation device control unit; (108) X ray photograph system control unit; (109) Image processing unit; (110) Monitor; (111) Operation unit; (112) Image storage unit; (113) Image pixel value differential unit; (114) Function value calculation unit; (115) Multiply unit; (116) Convolution unit; (117) Back projection unit</p> |
