PATIENT MONITOR

摘要

Images obtained by a camera system (10) arranged to obtain stereoscopic images of a patient (20) undergoing radio-therapy are processed by a modeling unit (56,58) which generates a model of the surface of a patient (20) being monitored. Additionally the patient monitoring system processes image data not utilized to generate a model of the surface of a patient being monitored to determine further information concerning the treatment of the patient (20). Such additional data can comprise data identifying the relative location of the patient and a treatment apparatus (16). This can be facilitated by providing a number or retro-reflective markers (30-40) on a treatment apparatus (16) and a mechanical couch (18) used to position the patient (20) relative to the treatment apparatus (16) and monitoring the presence and location of the markers in the portions of the images obtained by the stereoscopic camera (10).

主权项

1. A patient monitoring system for monitoring a patient undergoing radiotherapy comprising:
a stereoscopic camera system operable to obtain stereoscopic images of a patient undergoing radiotherapy; a modeling unit operable to process stereoscopic images of a patient and generate a model of the surface of a patient being monitored on the basis of the appearance of the patient corresponding to part of the stereoscopic images obtained by the stereoscopic camera system; wherein the patient monitoring system is arranged to process image data corresponding to portions of the stereoscopic images which are not utilized to generate a model of the surface of a patient being monitored to determine further information concerning the treatment of the patient.