Study of an effective presentation method of dynamic subtitles

Abstract

In this study, we will investigate the effects of the assignment of speech bubbles and the difference of text presentation (Horizontal, Vertical) on viewers' understanding of details of a video, based on viewers' gaze data. Presentations without speech bubbles or with vertical writing increase the comprehension of contents of the subtitles because the subtitles have been read for a longer duration, but decrease the comprehension of details of the video. Horizontal writing enables viewers to read the subtitles in a shorter time and increases viewers' eye movement. Therefore, it is appropriate to present subtitles horizontally with speech bubbles, taking into account the understanding of details of the video.