RESPIRATION MONITORING DEVICE, RESPIRATION MONITORING SYSTEM, MEDICAL TREATMENT SYSTEM, RESPIRATION MONITORING METHOD, AND RESPIRATION MONITORING PROGRAM

摘要

A respiration monitoring device comprises an image acquiring section for so acquiring an image that an imaging object region including a body portion of a subject reciprocally moving as the subject respires is inclined at a predetermined angle to the direction in which the body portion reciprocally moves at each predetermined timing, a variation computing section for computing the variation of the position of the imaging object region from a first time which is a given timing to a second time which is a timing coming after a predetermined number of timings from the first time according to the difference between the luminance of the pixels of the image acquired at the first time and that at the second time, and a position judging section for judging, as the position of the imaging object region at the second time, the position determined by adding the variation of the position of the imaging object region between the first and second times to the position of the imaging object region at the first time.