Mr. Kazuya Oko Profile

Kazuya Oko

at Tokushima Univ

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Proceedings Article | 22 April 2020 Paper

Effective displaying methods of monocular motion parallax for more realistic depth perception

Haruki Mizushina, Kazuya Oko, Yuki Masuda, Shiro Suyama

Proceedings Volume 11402, 1140208 (2020) https://doi.org/10.1117/12.2557650

KEYWORDS: Eye, 3D displays, 3D applications, Motion measurement

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We introduce three experiments on depth perception from monocular motion parallax for more realistic depth representation in 3D applications. Motion parallax is a physiological factor for depth perception. When moving the head position, depth can be perceived from motion parallax even when using one eye because motion parallax provides enough information for depth estimation. In our first experiment, we evaluated the perceived depth from monocular motion parallax with passive head movements. The results show that perceived depth with passive head movement is comparable to that with active head movement. For more realistic 3D scenes, we should clarify the critical factor of visual information in motion parallax. Therefore, in our second experiment, we evaluated the perceived depth from motion parallax with and without direction change of the stimulus movement. The results suggest that visual information at the time of direction change plays an important role in stable and unambiguous depth perception. In our third experiment, we evaluated the minimum duration of motion parallax stimulus with direction change for stable and unambiguous depth perception. The results indicate that a stimulus duration of only 15% of the total trial time provides stable and unambiguous depth perception if direction changes of the visual stimulus are presented. These findings can be applied to 3D applications using motion parallax.

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