1. An apparatus, comprising: a processor; memory including computer program code, the memory and the computer program code configured to, working with the processor, cause the apparatus to perform at least the following: receiving a video indicating a motion; generating a set of scalar representations of movement absent performance of a tracking calculation, based, at least in part, on at least part of the video; and identifying at least one predetermined motion based, at least in part, on correlation between a reference set of scalar representations associated with the predetermined motion and the set of scalar representations of movement.