What are the effects of unrecognized 3D gestures on user experience, and how do these affect the design of error-tolerant 3D gesture sets?
We hypothesized that for mimetic gestures, users are less familiar with the ideal shape of the gesture, so we expect more gesture variation under high error rates and lower subjective workload due to higher degrees of freedom.
By contrast, for alphabet gestures, users are more familiar with the ideal shape, which result in more rigid gestures under increasing error rates, and higher subjective workload due to lower degrees of freedom.
Consider speech recognition technology, and how you
repeat yourself when Siri doesn't understand you after 2-3 times.