Hand Tracking and Gesture Recognition Using Lensless Smart Sensors

Sensors
Lizy AbrahamBrendan O'Flynn

Abstract

The Lensless Smart Sensor (LSS) developed by Rambus, Inc. is a low-power, low-cost visual sensing technology that captures information-rich optical data in a tiny form factor using a novel approach to optical sensing. The spiral gratings of LSS diffractive grating, coupled with sophisticated computational algorithms, allow point tracking down to millimeter-level accuracy. This work is focused on developing novel algorithms for the detection of multiple points and thereby enabling hand tracking and gesture recognition using the LSS. The algorithms are formulated based on geometrical and mathematical constraints around the placement of infrared light-emitting diodes (LEDs) on the hand. The developed techniques dynamically adapt the recognition and orientation of the hand and associated gestures. A detailed accuracy analysis for both hand tracking and gesture classification as a function of LED positions is conducted to validate the performance of the system. Our results indicate that the technology is a promising approach, as the current state-of-the-art focuses on human motion tracking that requires highly complex and expensive systems. A wearable, low-power, low-cost system could make a significant impact in this field, as it d...Continue Reading

References

Aug 26, 2006·IEEE Transactions on Pattern Analysis and Machine Intelligence·Björn StengerRoberto Cipolla
May 16, 2013·Sensors·Frank WeichertDenis Fisseler

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Citations

Feb 6, 2020·Frontiers in Neurorobotics·Daniele EspositoPaolo Bifulco
Dec 17, 2020·Sensors·Jorge-Luis Pérez-MedinaJean Vanderdonckt

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Methods Mentioned

BETA
Smart
feature extraction

Software Mentioned

Oculus
Google HoloLens
Google Glass

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