“…In fact, there have been several cases in which gait recognition has been applied to criminal investigation and forensics [2]. In addition to identity [3], [4], [5], [6], gait may contain a variety of cues, such as gender [7], [8], [9], age [10], [11], [12], [13], [14], [15], [16], ethnicity [17], disease [18], emotion [19], and some qualitative gait attributes [20].…”