3D scene and radiation distribution drawing method, system architecture and terminal

The invention discloses a 3D scene and radiation distribution mapping method, system architecture and terminal, and relates to the technical field of radiation mapping, the method comprises the following steps: S1, a scene sensor and a radiation detector are integrated into an integrated device, and the device is utilized to collect a 3D scene and radiation data at the same time; s2, coupling the three-dimensional scene data to obtain a 3D scene model and an equipment moving path; s3, interpolating the radiation data to a device moving path, and obtaining a radiation dose field by using a three-dimensional space interpolation algorithm; s4, according to the basic hypothesis of the source item distribution scene surface, using the 3D scene model to constrain the radiation dose field, and using a back projection algorithm to obtain scene surface radiation hotspot distribution; and S5, according to the radiation dose rate field, the radiation hotspot distribution and the radiation source item related information