Body movement and respiration monitor

A - Human Necessities – 61 – B

Patent

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Details

A61B 5/11 (2006.01) A61B 5/00 (2006.01) A61B 5/08 (2006.01) A61B 5/113 (2006.01)

Patent

CA 2430535

A monitor which can detect respiration of a sleeping person without being affected by the attitude of the sleeping person or the indoor illumination light and can easily evaluate detected respiration quantitatively through image measurement. The monitor comprises means (1) for projecting a specified illumination pattern, means (5) for picking up the image of projected light continuously, means (7) for calculating inter-frame moving amount of the illumination pattern from the image of two frames acquired by the image pickup means at different times, means (8) for generating a moving amount waveform data comprising inter-frame moving amounts arranged in time series, and means (9) for detecting the movement of an object from the moving amount waveform data.

L'invention concerne un moniteur permettant de détecter la respiration d'une personne pendant son sommeil, sans être influencé par l'attitude de ladite personne en train de dormir ou par la lumière d'éclairage intérieur, et d'évaluer aisément quantitativement la respiration détectée à travers la mesure de l'image. Ce moniteur comprend un élément (1) pour projeter un schéma d'éclairage spécifié, un élément (5) pour prendre en continu l'image de la lumière projetée, un élément (7) pour calculer la quantité mobile interimage du schéma d'éclairage entre l'image de deux clichés pris par les éléments de prise de vues à différents moments, un élément (8) pour produire des données d'onde de quantité mobile comprenant les quantités mobiles interimages disposées en séries chronologiques, ainsi qu'un élément (9) pour détecter le mouvement d'un objet à partir des données d'onde de quantité mobile.

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