| Автор | Paul S Cho |
| Автор | Roger H Johnson |
| Дата выпуска | 1998-09-01 |
| dc.description | Small ball bearings (BBs) are often used to characterize and correct for geometric distortion of x-ray image intensifiers. For quantitative applications the number of BBs required for accurate distortion correction is prohibitively large for manual detection. A method to automatically determine the BB coordinates is described. The technique consists of image segmentation, pixel coalescing and centroid calculation. The dependence of calculated BB coordinates on segmentation threshold was also evaluated and found to be within the uncertainty of measurement. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Automated detection of BB pixel clusters in digital fluoroscopic images |
| Тип | note |
| DOI | 10.1088/0031-9155/43/9/018 |
| Electronic ISSN | 1361-6560 |
| Print ISSN | 0031-9155 |
| Журнал | Physics in Medicine and Biology |
| Том | 43 |
| Первая страница | 2677 |
| Последняя страница | 2683 |
| Выпуск | 9 |
