Wearable ophthalmology measurement and light modulation for flexible control of vision

2022 Fiscal Year Final Research Report

• Project/Area Number: 20H04222
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 61020:Human interface and interaction-related
• Research Institution: The University of Tokyo (2021-2022); Tokyo Institute of Technology (2020)
• Principal Investigator: Itoh Yuta 東京大学, 大学院情報学環・学際情報学府, 特任准教授 (10781362)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: 拡張現実感 / HMD / 光学シースルー / 視覚拡張 / 光学透過型 / AR / 波面計測 / 網膜投影

Outline of Final Research Achievements

The main results of the research are divided into two sections. ■The first is the estimation of the focal distance and aberration of the eye and the visibility of the field of view using wavefront measurement. AR display technology combining a retinal projection display and a wavefront measurement sensor was developed, and experiments were conducted to evaluate depth perception in rendering according to depth of field. ■The second is image optimisation using spatial light modulation and its linkage with vision. A new AR display method, StainedView, was proposed and spatial light modulation technology was applied to construct an optical see-through optical shielding system, successfully reproducing continuous depth optically. In the final year, a compact optical shielding system using photochromic and holographic materials was constructed and presented as a conference paper in IEEE VR 2023.

Free Research Field

拡張現実感

Academic Significance and Societal Importance of the Research Achievements

本研究は「視界の見え方推定と眼に入る光の制御によって個人毎の視覚を高度に制御できるか？」という課題に取り組んでいる。この課題に対して、本研究成果は目の状態を計測しながら最適な映像を提示するという先進的な拡張現実感（AR）ディスプレイ技術につながる。また光の制御のため、一般のARディスプレイで問題となる映像が半透明になる課題に対して新しい解決策を提案し、今後よりリアルなAR映像を再現する技術開発の先駆けともなっている。