| 摘要 |
A method of analysing radiographs is described in which a television camera (1) is used to view the X-ray image (16) under analysis. The image is displayed on the screen of a CRT (2). A light pen is employed to delimit a zone of interest (7) by providing contour coordinate data to a processing unit (4). Spurious light or dark points are next interrogated by the use of the light pen and assessed by the unit (4) as belonging or not to the delimited area. |
