The invention discloses a
system and a method for assisting radiotherapy on the basis of
infrared and visible light three-dimensional reconstruction. The
system comprises a visible light three-dimensional reconstruction
system, a near-
infrared three-dimensional reconstruction system, a synchronous trigger device, a first calibration plate and a second calibration plate. The visible light three-dimensional reconstruction system comprises a visible light camera and a visible light
projector; the near-
infrared three-dimensional reconstruction system comprises an infrared camera and an infrared
projector; the synchronous trigger device is connected with the visible light camera, the visible light
projector, the infrared camera and the infrared projector; the first calibration plate can be arranged in the center of an accelerator of a
therapeutic bed and is used for calibrating the visible light camera and the infrared camera; the second calibration plate is used for calibrating the visiblelight projector and the infrared projector. The system and the method have the advantages that the system is an infrared and visible light combined three-dimensional reconstruction system, and
distance measurement, position
verification, dynamic tracking, real-time monitoring and the like in clinical
medicine can be carried out on therapeutic beds by the aid of the system and the method.