- B. Raj, Kaustubh Kalgaonkar, Chris Harrison, P. Dietz. 2012. Ultrasonic Doppler Sensing in HCI. Abstract: Several properties differentiate ultrasonic Doppler sensing from other sensing techniques-high frame rate, low computational overhead, instantaneous velocity readings, and range independence. Also, because it isn't vision-based, it might open doors to sensing in once taboo locations.
