A Comparative Study of Handheld Devices and Freehand Gestures according to the Smart TV controls

The research tests the cognitive burden of consumers through the use of smart TV’s various contents and services with different operation systems such as free hand or equipment gestures (permissive button, non-permissive button). The purpose of this study was to use the Smart TV features selected and verify by experiment a user-centered approach. The experiment selected 20 functions and 20 test subjects to repeatedly perform the 3 previously mentioned operation systems gestures for each function. As a result, the operation of each specific function was obtained representing the 3 gestures. The feedback agreement from each gesture was measured. Also, by measuring the time, preference, performance, and difficulty of each function the statistical difference between the operation systems was significant. Generally the free hand gesture was more convenient and preferred to consumers than the equipment gesture. The results showed these functions: volume +/-, channel +/-, scroll and point move are suitable to be used with gesture operation systems. Whereas mute, home, menu, and like functions were somewhat unsuitable. Through the results of the research on usability of Smart TV operation system, gesture operation methods can improve the user experience in the future.