1. An electronic device comprising: at least one laser source configured to direct laser radiation toward a user's hand; a plurality of laser detectors configured to receive reflected laser radiation from the user's hand; and a controller coupled to the at least one laser source and plurality of laser detectors and configured to determine a set of distance values to the user's hand for each respective laser detector and based upon a time-of-flight of the laser radiation, and determine a hand gesture from among a plurality of possible hand gestures based upon the sets of distance values using respective Bayesian probabilities associated with each respective laser detector.