In this paper,one X-ray image autotrack system for weld radiographic inspection is introduced, and itsworking principle is described from the hardware and software.

• 介绍了一种焊缝X光图象自动识别跟踪系统。该系统用于焊缝的射线检测。从硬件和软件两个方面描述了系统的工作原理。