Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : March 06, 2023 - March 07, 2023
With the development of smartphones and ease of access to high-speed internet, many people now spend a lot of time on their smartphones and tablets, especially for watching videos. In recent years, many people tend to watch dramas and movies at increased speed to save time. Flickering and near point distance were measured as objective indices in the experiment, and LF/HF was used as an auxiliary method to analyze examinee’s fatigue. The "subjective fatigue test" was used as a subjective index to evaluate human subjective fatigue. Therefore, the purpose of this study is to investigate the effects of 1x and 2x playback speed on human eye fatigue during video viewing. The result shows that although there was no statistically significant difference in the experimental results, it can be inferred that there was a downward trend in flicker change, which expresses mental fatigue at 2x speed, and that there was no change in near point distance, which expresses regulatory fatigue, at either 1x speed or 2x speed.
