Certainly an IR style sensor would be good for low-light recognition in a way that using a CMOS image sensor would not.
But one wonders how necessary gesture recognition would be for handheld devices. The use case in television and other more remote equipments is more obvious.
I wonder if the real reason for using IR is that it can obtain full illumination in light or dark without annoying the human user. A bright light coming from the sensor would be annoying - especially if people intended to be viewing a screen in the dark.
Sounds like a neat idea, I am left wondering about the details. What is the range, resolution for the sensor arrays and how much processing power is needed to support the gesture recognition? I would like to know more (please).
NASA's Orion Flight Software Production Systems Manager Darrel G. Raines joins Planet Analog Editor Steve Taranovich and Embedded.com Editor Max Maxfield to talk about embedded flight software used in Orion Spacecraft, part of NASA's Mars mission. Live radio show and live chat. Get your questions ready.
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