Performance analysis of Leap motion controller for finger rehabilitation using serious games in two lighting environments

Serious games have been implemented to assist people in their rehabilitation processes to recover mobility of a body part. Leap motion controller (LMC) is a sensor, which provides 3D-coordinates of the elbow, wrist and phalanges of the fingers. This study proposes a serious game composed of three melodies to assess the performance of LMC on identifying finger flexion in two lighting environments. Ten participants played the three melodies in two lighting environments (lighting = 136.987 lux, non-lighting = 0.0513 lux) using three experimental settings. Sensitivity, specificity and accuracy were computed to compare the two lighting environments. Statistical tests revealed that only there was a significant difference between the performances of LMC in lighting and non-lighting environments in the pairwise sensitivity for the thumb in the experimental setting 1 (p-value = 0.036). Grand mean accuracy rates of 88.22% and 84.17% were achieved in the lighting and non-lighting environments, respectively. (C) 2020 Elsevier Ltd. All rights reserved.