  Gait analysis is the study of the systematic methods that assess and quantify
animal locomotion. The research on gait analysis has considerably evolved
through time. It was an ancient art, and it still finds its application today
in modern science and medicine. This paper describes how one's gait can be used
as a biometric. It shall diversely cover salient research done within the field
and explain the nuances and advances in each type of gait analysis. The
prominent methods of gait recognition from the early era to the state of the
art are covered. This survey also reviews the various gait datasets. The
overall aim of this study is to provide a concise roadmap for anyone who wishes
to do research in the field of gait biometrics.
