Domain-Adaptive and Context-Aware Fall Detection Based on Coarse-Fine Network Learning

Abstract

Accurate fall detection among older adults is crucial for minimizing injuries and fatalities. However, existing fall detection systems face challenges due to the rarity and variability of falls, compounded by limitations in real-world datasets. To address this, a novel fall detection approach integrating domain adaptation and context-awareness within a Coarse-Fine Network Learning framework is proposed. The model combines high-level semantic understanding with low-level spatial details to achieve robust fall detection across diverse environments. Domain adaptation techniques like transfer learning and domain-specific fine-tuning are introduced to enhance model generalization and adaptability. Additionally, context-aware features, including environmental cues and behavioral patterns, reduce false alarms. Extensive experimentation on real- world datasets demonstrates the superior performance of the model, outperforming traditional approaches. The framework holds promise for deployment in healthcare settings, contributing to improved safety for older adults worldwide. The interpretability of the model's predictions enhances its usability in practical applications.