Challenge to Unsolved Problems with Stereopsis Through Redirection

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K20481
• Project/Area Number (Other): 19H05576 (2019)
• Research Category: Grant-in-Aid for Challenging Research (Pioneering)
• Allocation Type: Multi-year Fund (2020); Single-year Grants (2019)
• Review Section: Medium-sized Section 60:Information science, computer engineering, and related fields
• Research Institution: Keio University
• Principal Investigator: Fujishiro Issei 慶應義塾大学, 理工学部(矢上), 教授 (00181347)
• Co-Investigator(Kenkyū-buntansha): 茅 暁陽 山梨大学, 大学院総合研究部, 教授 (20283195)
• Project Period (FY): 2019-06-28 – 2023-03-31
• Keywords: 立体視 / 知的環境メディア / リダイレクション / アナモルフォーシス / 運動視差 / 視線計測 / VR酔い

Outline of Final Research Achievements

The illusion of immersion in a simple stereoscopic viewing system with two raster monitors arranged in an L-shape is enhanced through the sharpness of anamorphosis. This effect is achieved by positioning the Cyclopean eye and employing a frame-breaking technique to prevent any partial loss of projected objects. Importantly, the proposed system is designed to minimize eye strain by primarily inducing motion disparity instead of emphasizing binocular disparity stimuli. To address motion sickness, we have developed redirection strategies, including a fast ray tracer based on affine transformed ray alignment for foveated rendering. This allows us to simultaneously reduce display delay and adaptively control the display resolution, guided by eyesight. Additionally, we have implemented a progressive mechanism to optimize the scaling factor function, facilitating the psychological size matching of the objects of interest.

Free Research Field

ビジュアルコンピューティング

Academic Significance and Societal Importance of the Research Achievements

裸眼立体視は，ビジュアルコンピューティングにおける最も古くかつ最も新しい問題である．本研究で提案した方式は，市販の表示モニタとウェブカメラを組み合わせるだけで，個人用の裸眼立体視環境を実現できる．本方式は，2画面や折畳み画面を有するモバイル機器に移植する場合にも没入度を損なわない強化策が講じられたため，今後の社会実装にも適している．この特長を成立させているのは，人間の視覚系の心理学的性質の考慮であり，情報学が心理学の知見と結びつくことで，従来にない視覚効果をあげることができる好例となっている．