Fast calculation system for head-mounted display using user’s attitude angle in CGH

Teppei Jodo; Yuji Sakamoto

doi:10.1117/12.2666823

25 March 2023 Fast calculation system for head-mounted display using user’s attitude angle in CGH

Teppei Jodo, Yuji Sakamoto

Proceedings Volume 12592, International Workshop on Advanced Imaging Technology (IWAIT) 2023; 125920A (2023) https://doi.org/10.1117/12.2666823
Event: International Workshop on Advanced Imaging Technology (IWAIT) 2023, 2023, Jeju, Korea, Republic of

Abstract

A head-mounted display (HMD) based on computer-generated holograms (CGH) is attracting attention as an ideal augmented reality (AR) technology. However, an HMD using CGH has the issues use of long calculation times and the need to design small optical systems with sensors, and no studies have been reported that perform calculations based on user’s attitude angles. Therefore, we propose an HMD system with a compact optical system with sensors that calculates CGHs fast based on the user’s attitude angle. In the proposed system, the object light is calculated in advance and the light wave is generated by phase compensation with the angle determined from the sensor values. As a result, each object light of the CGHs can be calculated in about 42ms.

Citation Download Citation

Teppei Jodo and Yuji Sakamoto "Fast calculation system for head-mounted display using user’s attitude angle in CGH", Proc. SPIE 12592, International Workshop on Advanced Imaging Technology (IWAIT) 2023, 125920A (25 March 2023); https://doi.org/10.1117/12.2666823

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