APPARATUS AND METHOD FOR DETERMINING A RESPIRATION VOLUME SIGNAL FROM IMAGE DATA

摘要

The present invention relates to apparatus (10) for determining a respiration volume signal from a subject (12), comprising a processing unit (28) for receiving image data (26) detected from a field of view (42) and for determining an alternating signal (S)including vital sign information (R) of the subject (12) from the image data (26), an analysis unit (30) for determining at least one characteristic parameter (A) corresponding to a respiration parameter of the subject (12) on the basis of the alternating signal (S), a calibration unit (32) for determining a calibration value (V1, V2) on the basis of a breathing volume measured during inhale and/or exhale of the subject (12) by means of an airflow or an air volume measurement, and a calculation unit (34) for calculating the respiration volume of the subject (12) on the basis of the calibration value (V1, V2) and the at least one characteristic parameter (A).

主权项

1. An apparatus for determining a respiration volume signal from a subject, comprising:
a processing unit for receiving image data detected from a field of view and for determining a plurality of alternating signals including vital sign information of the subject from different areas of the filed of view from the image data, an analysis unit for determining at least one characteristic parameter corresponding to a respiration parameter of the subject on the basis of the plurality of alternating signals, a calibration unit for determining a calibration value on the basis of a breathing volume measured during inhale and/or exhale of the subject by means of an airflow or an air volume measurement, and a calculation unit for calculating the respiration volume of the subject on the basis of the calibration value and the at least one characteristic parameter wherein the plurality of alternating signals are weighted by a weight factor.