K. Humphreys

Noncontact simultaneous dual wavelength photoplethysmography: a further step toward noncontact pulse oximetry.

T. Ward, C. Markham, K. Humphreys, 2007, The Review of scientific instruments.

Medical applications of terahertz imaging: a review of current technology and potential applications in biomedical engineering

K. Humphreys, J.P. Loughran, M. Gradziel, 2004, The 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

An investigation of remote non-contact photoplethysmography and pulse oximetry

Kenneth Gerard Humphreys, K. Humphreys, 2007 .