Ray dose measuring method and device and training method and device

A ray dose measuring method and device, a BP neural network training method and device are provided. The method for measuring the ray dose comprises: obtaining an image of a light sheet irradiated with radiation; obtaining the gray value of the image; and querying BP neural network to obtain the dose of radiation according to the gray value of the image. The method can detect any dose of radiationand improve the applicability of the method, so as to solve the technical problem that in the prior art, the optical fiber probe and the semiconductor crystal can detect only a small dose of radiation, thereby leading to a higher limitation of application. 本申请提出种射线剂量的测量方法及其装置、BP神经网络的训练方法及其装置，其中，射线剂量的测量方法包括：获取射线照射的光片的图像；获取图像的灰度值；以及根据图像的灰度值查询BP神经网络获取射线的剂量。该方法能够实现对任何剂量的射线进行探测，提升该方法的适用性，以解决现有技术中光纤探针和半导体晶体只能对较少剂量的射线进行探测，从而导致应用的局限性较高的技术问题。