A Non-Contact Heart Rate Measurement Method Resistant to Illumination Changes Based on Fast Wavelet Transform and Second-Order Blind Identification in Far-Field Environments

Anonymous

Abstract:

Heart rate(HR) is a key parameter for evaluating a person’s physiological condition. In recent years, there have been many researches on remote heart rate measurement. However, these methods are mostly conducted in close-range scenarios, making them inapplicable in many scenarios. Remote photoplethysmography (rPPG) provides more possibilities for heart rate measurement in far-field environments. Moreover,the performance of heart rate measurement will be significantly reduced when the subject’s movement and the illumination changing. We propose a rPPG framework for heart rate detection, which selects a larger region of interest (ROI) using feature point tracking in far-field environments. The combination of fast wavelet transform (FWT) and second-order blind identification (SOBI) is used to resist
illumination interference and most of the motion interference.Singular spectrum analysis (SSA) is then used to resist residual motion interference.In addition, we collected a database of illumination changes in far-field environments and tested our framework with it. The results show that our method is superior to all previous methods.

Track: Graphics

Revision: No