Method and system for detecting a fallen person using a range imaging device

A method and system for detecting a fallen person is described. An initial range image corresponding to a field of view of a DAS is generated. Further, a reference plane disposed in the field of view is identified. Additionally, one or more regions in the initial range image indicative of one or mor...

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Bibliographische Detailangaben
Hauptverfasser:	CUDDIHY PAUL EDWARD, BUFI COREY NICHOLAS
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS CALCULATING COMPUTING COUNTING HANDLING RECORD CARRIERS IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ORDER TELEGRAPHS PHYSICS PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS SIGNALLING SIGNALLING OR CALLING SYSTEMS
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Beschreibung
Zusammenfassung:	A method and system for detecting a fallen person is described. An initial range image corresponding to a field of view of a DAS is generated. Further, a reference plane disposed in the field of view is identified. Additionally, one or more regions in the initial range image indicative of one or more objects disposed above the reference plane in the field of view are determined. Further, the DAS regenerates a range image corresponding to the field of view after a determined time period. The regenerated range image is compared with the initial range image to determine if the regenerated range image comprises a new object disposed above the reference plane. The new object is determined to be the fallen person if a height of the new object is less than a determined height and a volume and/or a surface area of the new object is greater than a determined value.