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系统通过计算机对Ｘ光机的状态进行控制，对Ｘ光机摄取的静态和动态图象进行实时的捕捉、存储，能实现Ｘ光数字点片（ＰＤＳＩ）与数字减影（ＰＤＳＡ），并提供了大量的图象处理算法对捕捉的图象进行后期处理。简要地说明了该系统的设计和实现情况，并对其中动态减影新算法作了介绍。
The system controls the state of the X-ray machine through a computer and captures and stores the static and dynamic images taken by the X-ray machine in real time, and can realize PDSI and PDSA. A large number of image processing algorithms to capture the image for post-processing. Briefly described the design and implementation of the system, and introduces the new dynamic subtraction algorithm.