Multi-depth cameras system for bed exit and fall prevention of hospitalized elderly patients
T. K. Shea, Y. C. Tam, P. H. So, T. C. Chan, H. Y. Mak, K. H. Lai, M. W. Wong, Y. P. Zheng, C. W. Cheung
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AbstractWandering behaviors of the elderly are linked to high morbidity and mortality rates ascribed to falls, fatigue, psychological distress, and accidental exposures (Silverstein et al., 2018). To prevent wandering behavior, dangerous craning over the fence, and fall in hospitalized elderly patients, physical or virtual restraints are often used to restrain patient on the bed or alarm when bed exit is detected. These methods however have ethical concerns or have high false alarm rates. The proposed elderly wandering monitoring system was previously developed and implemented in nursing homes and residential care homes and showed promising results (Cheung et al.,2021, Cheung et al.,2022). However, the existing system with ceiling mount design from a single side view showed a limitation of blockage by subject activities, equipment, and furniture. Multiple cameras mounting from different angles could overcome the issue, particularly in wards in hospitals, where activities blocking the field of view of a single camera could be carried out multiple times daily. Hence, a new installation strategy with a new algorithm approach was implemented and tested. To test and evaluate the revised system, specific activities were performed by subjects and caregivers to mimic daily life and service activities.Keywords: bed exit, fall prevention, contactless monitoring
T. K. Shea, Y. C. Tam, P. H. So, T. C. Chan, H. Y. Mak, K. H. Lai, M. W. Wong, Y. P. Zheng, C. W. Cheung (2022). Multi-depth cameras system for bed exit and fall prevention of hospitalized elderly patients. Gerontechnology, 21(s),1-1
https://doi.org/10.4017/gt.2022.21.s.634.opp3