Most of the population, especially, elderly people are interested in computer gaming technology and desire to be actively involved in such activities, however they are limited by their responsiveness due to age, as gaming requires fast reflexes in order to provide and comfortable/satisfactory experience. https://www.indjcst.com/archives/paper-details?paperid=25&papertitle=implementing-klm-algorithm-and-open-cv-for-real-time-hand-movement-tracking