Analysis of gaze behavior while using a multi-viewpoint video viewer

Abstract

Humans see things from various viewpoints but nobody attempts to see anything from every viewpoint owing to physical limitations and the great effort required. Intelligent interfaces for viewing multi-viewpoint videos may effectively remove these limitations and open up a new visual world to mankind. We have developed a multi-viewpoint video viewer that incorporates target-centered viewpoint switching. The viewer stabilizes an object at the center of the display field, which helps to focus the user's gaze on the target. We conducted a user study to analyze user behavior, especially eye movement, while watching a multi-viewpoint video on the viewer. Statistical analyses of the results indicated that the target-centered viewpoint switching encouraged the users to gaze at the center of the display where the target was located during the viewing. We believe that these are useful findings that pave the way for the design of even more intelligent viewers.