A Graph-based Approach to Human Activity Recognition

TL;DR

This paper introduces a graph-based method for analyzing human activities using wearable sensor data, specifically focusing on sports performance analysis through movement sequence detection and comparison.

Contribution

It proposes a novel graph-based approach to extract insights from sensor data, applicable to various human activities and demonstrated on biathlon data.

Findings

Effective detection of movement points of interest

Successful analysis of complex movement sequences

Enhanced comparison of athletic performance

Abstract

Advanced wearable sensor devices have enabled the recording of vast amounts of movement data from individuals regarding their physical activities. This data offers valuable insights that enhance our understanding of how physical activities contribute to improved physical health and overall quality of life. Consequently, there is a growing need for efficient methods to extract significant insights from these rapidly expanding real-time datasets. This paper presents a methodology to efficiently extract substantial insights from these expanding datasets, focusing on professional sports but applicable to various human activities. By utilizing data from Inertial Measurement Units (IMU) and Global Navigation Satellite Systems (GNSS) receivers, athletic performance can be analyzed using directed graphs to encode knowledge of complex movements. Our approach is demonstrated on biathlon data and detects specific points of interest and complex movement sequences, facilitating the comparison and analysis of human physical performance.