Elderly Fall Detection Using CCTV Cameras under Partial Occlusion of the Subjects Body

• URL: http://arxiv.org/abs/2208.07291v1
• Date: Mon, 15 Aug 2022 16:02:18 GMT
• Title: Elderly Fall Detection Using CCTV Cameras under Partial Occlusion of the Subjects Body
• Authors: Sara Khalili, Hoda Mohammadzade, Mohammad Mahdi Ahmadi
• Abstract summary: Occlusion is one of the biggest challenges of vision-based fall detection systems. We synthesize specifically-designed occluded videos for training fall detection systems. We introduce a framework for weighted training of fall detection models using occluded and un-occluded videos.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: One of the possible dangers that older people face in their daily lives is falling. Occlusion is one of the biggest challenges of vision-based fall detection systems and degrades their detection performance considerably. To tackle this problem, we synthesize specifically-designed occluded videos for training fall detection systems using existing datasets. Then, by defining a new cost function, we introduce a framework for weighted training of fall detection models using occluded and un-occluded videos, which can be applied to any learnable fall detection system. Finally, we use both a non-deep and deep model to evaluate the effect of the proposed weighted training method. Experiments show that the proposed method can improve the classification accuracy by 36% for a non-deep model and 55% for a deep model in occlusion conditions. Moreover, it is shown that the proposed training framework can also significantly improve the detection performance of a deep network on normal un-occluded samples.

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