Visual perception principle of watching video is crucial in ensuring video
works accurately and effectively grasped by audience. This article proposes
an investigation into the efficiency of human visual perception on video
clips considering exposure duration. The study focused on the correlation
between the video shot duration and the subject?s perception of visual
content. The subjects? performances were captured as perceptual scores on
the testing videos by watching time-regulated clips and taking
questionnaire. The statistical results show that three-second duration for
each video shot is necessary for audience to grasp the main visual
information. The data also indicate gender differences in perceptual
procedure and attention focus. The findings can help for manipulating clip
length in video editing, both via AI tools and manually, maintaining
perception efficiency as possible in limited duration. This method is
significant for its structured experiment involving subjects? quantified
performances, which is different from AI methods of unaccountable.