Remote Respiration Rate Determination in Video Data: Vital Parameter Extraction based on Optical Flow and Principal Component Analysis

摘要

Due to the steadily ageing society, the determination of vital parameters, such as the respiration rate, has come into focus of research in recent years. The respiration rate is an essential parameter to monitor a person's health status. This study presents a robust method to remotely determine a person's respiration rate with an RGB camera. In our approach, we detected four subregions on a person's chest, tracked features over time with optical flow, applied a principal component analysis (PCA) and several frequency determination techniques. Furthermore, this method was evaluated in various recorded scenarios. Overall, the results show that this method is applicable in the field Ambient Assisted Living (AAL).