Identification of hand postures by force myography using an optical fiber specklegram sensor
Eric Fujiwara, Yu Tzu Wu, Murilo Ferreira Marques dos Santos, Egont Alexandre Schenkel, Carlos K. Suzuki · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2015
The identification of hand postures based on force myography (FMG) measurements using a fiber specklegram sensor is reported. The microbending transducers were attached to the user forearm in order to detect the radial forces due to hand movements, and the normalized intensity inner products of output specklegrams were computed with reference to calibration positions. The correlation between measured specklegrams and postures was carried out by artificial neural networks, resulting in an overall accuracy of 91.3% on the retrieval of hand configuration.