Characterizing Latency in Touch and Button-Equipped Interactive Systems

Géry Casiez1, Thomas Pietrzak1, Damien Marchal2, Sébastien Poulmane3, Matthieu Falce4 and Nicolas Roussel3
1Université de Lille, 2CNRS and 3Inria Lille 4MFC
This page provides additional material to our UIST 2017 paper (PDF).

We present a low cost method to measure and characterize the end-to-end latency when using a touch system (tap latency) or an input device equipped with a physical button. Our method relies on a vibration sensor attached to a finger and a photo-diode to detect the screen response. Both are connected to a micro-controller connected to a host computer using a low-latency USB communication protocol in order to combine software and hardware probes to help determine where the latency comes from.


Links and Downloads


Casiez, G., Pietrzak, T., Marchal, D., Poulmane, S., Falce, M. & Roussel, N. (2017). Characterizing Latency in Touch and Button-Equipped Interactive Systems. Proceedings of UIST'17, the 30th ACM Symposium on User Interface Software and Technology. ACM Press.