论文部分内容阅读
CT(CT是 Computed Tomography的缩写)扫描器又称为X射线电脑断层照像装置,其工作原理是:当X射线穿过物体某横断面后,会产生强弱不同的衰减信号,这些信号经过检出器,以图像将断面构造显示在显示器上,图像数据可存进软盘或磁带,以便随时读出,进行各种图像处理。 CT扫描器的主要特征,一是不需直接接触或破坏物体就可得到其内部的三维透视图;二是因图像是由大量数据构成的,所以
CT (CT is the abbreviation of Computed Tomography) Scanner is also called X-ray computed tomography device, its working principle is: When the X-ray cross-section of the object, will produce different strength attenuation signals, these signals through Detector to image the cross-section structure displayed on the display, the image data can be stored in a floppy disk or tape for easy reading, for a variety of image processing. CT scanner’s main features, one is without having to directly contact or destroy objects can get its internal three-dimensional perspective; Second, because the image is composed of a large amount of data, so