JICCE (한국정보통신학회)
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| 한글제목(Korean Title) |
Restoration of Chest X-ray by Kalman Filter |
| 영문제목(English Title) |
Restoration of Chest X-ray by Kalman Filter |
| 저자(Author) |
Jinwoo Kim
|
| 원문수록처(Citation) |
VOL 08 NO. 05 PP. 0581 ~ 0585 (2010. 10) |
한글내용
(Korean Abstract) |
|
영문내용
(English Abstract) |
A grid was sandwiched between two cascaded imaging plates. Using a fan-beam X-ray tube and a single exposure scheme, the two imaging plates, respectively, recorded grid-less and grid type information of the object. Referring to the mathematical model of the Grid-less and grid technique, it was explained that the collected components whereas that of imaging plates with grid was of high together with large scattered components whereas that of imaging plate with grid was of low and suppressed scattered components. Based on this assumption and using a Gaussian convolution kernel representing the effect of scattering, the related data of the imaging plates were simulated by computer. These observed data were then employed in the developed post-processing estimation and restoration (kalman-filter) algorithms and accordingly, the quality of the resultant image was effectively improved. |
| 키워드(Keyword) |
Kalman filter
Computed Radiography
X-ray tube
scattering
X-ray imaging
|
| 파일첨부 |
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