|
KMID : 1151820220160020163
|
|
Journal of the Korean Society of Radiology
2022 Volume.16 No. 2 p.163 ~ p.168
|
|
|
Image Correction Method for Segmented Linear Detector
|
|
Chon Kwon-Su
Oh Suk-Sim
Jin Wang-Youn
|
|
|
Abstract
|
|
|
|
Linear detectors composed of several modules have been widely used in industrial in-line inspection. Two dimensional image obtained from the linear detector shows line artifact at the connection part of each module. In this study, we proposed a method to remove the line artifact using the flat-field correction and a wedge phantom image. Conventional flat-field correction has been applied to remove the artifact, however there are still line artifacts even after applying correction. It was found that two edge pixels at the connection part of two modules were over-corrected after the flat-field correction. Those edge pixels was corrected by using the correction factor obtained from an image of the wedge phantom, and images removed line artifacts were obtained. It is necessary to improve the method obtained manually the correction factor from the image of the wedge phantom.
|
|
|
KEYWORD
|
|
|
Linear Detector, Line Artifact, Image Correction, Flat-Field Correction
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|