Personalized multimedia alert service of fall event for ageing in place
Xinguo Yu, Panachit Kittipanya-ngam, How‐Lung Eng · 2009
Personalized multimedia alert service of fall event is an important service for ageing in place thanks to it can enhance the life safety of the elderly and then relieve the continuous worrying of the caregivers. This paper presents a personalized alert service of fall event for aging in place based the proposed fall detection algorithm. Our novel algorithm detects falls in sliding windows of video recorded by single fixed camera. The novelty of this algorithm is multiple. First, it acquires 3D information of heads from 2D image locations by looking up a 2D--3D table. Second, it mainly works on sliding windows. In each sliding window, it detects the existences of primitive actions and calculates the measures. Last, it uses a trained SVM to distinguish fall windows from non-fall windows. The inputs to the SVM are the vector consisting of the existences of primitive actions and the calculated measures from sliding windows. The lookup table and measure calculations are achieved with the aid of camera calibration. Experiments show that the proposed algorithm performs well in fall detection. Based on the fall detection we design a personalized multimedia alert service of fall event.