This paper presents a comprehensive survey of research trends in optical imaging techniques, particularly focusing on the potential of hyperspectral imaging, for non-contact heart rate estimation. The study discusses the relationship between rPPG sign...
This paper presents a comprehensive survey of research trends in optical imaging techniques, particularly focusing on the potential of hyperspectral imaging, for non-contact heart rate estimation. The study discusses the relationship between rPPG signal quality and wavelength bands, the advantages and limitations of RGB, near-infrared, and hyperspectral imaging, as well as state-of-the-art signal processing and deep learning-based methods. Furthermore, the importance of analyzing rPPG performance and SNR across different wavelength bands using hyperspectral imaging is emphasized. The findings aim to contribute to the advancement of remote healthmonitoring systems.