Measurement of Photon Diffusion with Mobile Phone Camera with Applications to mHealth Monitoring

The project studied the photon diffusion through turbid media with mobile phone camera.The student experiments in transmission profile imaging and pulse broadening measurement were calibrated with the same samples used in published research papers.Light sources employing He-Ne laser and consumer product keychain LED were included in the project.Application to mHealth monitoring was demonstrated in the measurements of an index finger diffusion mean free path and the embedded blood vessel absorption effect.Extension to an iris response measurement was also demonstrated.The interdisciplinary project has been popular among engineering students and engineering technology students and will be a good model project for future students.