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Cameras embedded in consumer devices have previously been used as physiological information sensors. The waveform of the photoplethysmographic image (PPGi) signals may be significantly affected by the light spectra and intensity. The purpose of this paper is to evaluate the performance of PPGi waveform acquisition in the red, green, and blue channels using a commercial camera in different light conditions...
This paper presents first several steps towards an FPGA-based electronic system for remote pulse rate (PR) measurement. The system uses a low-cost digital camera as an image sensor, which operates at up to 30 frames per second (fps) in WXGA (1200×800 pixels) resolution. A novel algorithm for PR measurement was implemented using an FPGA development board. A commercially-available photoplethysmography...
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