Enhanced 3D perception using Laser based scanning display

R. Gabai; G. Cahana; M. Yehiel; G. Yearim; T. Yusupov; A. Baram; M. Naftali

doi:10.1117/12.2580210

27 March 2021 Enhanced 3D perception using Laser based scanning display

R. Gabai, G. Cahana, M. Yehiel, G. Yearim, T. Yusupov, A. Baram, M. Naftali

Proceedings Volume 11765, Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) II; 117650Q (2021) https://doi.org/10.1117/12.2580210
Event: SPIE AR VR MR, 2021, Online Only

Abstract

Depth perception is an important building block for user experience in AR/VR/MR applications. It is based on visual cues such as blurring, sharpness, relative size, non-uniform details level, and more. The human brain uses these visual cues to create a 3D perception. Displaying enhanced 3D cues requires high resolution while maintaining a large Field of View (FOV). However, current display technologies fall short of fulfilling these requirements. Current solutions require sophisticated optics and loads of additional hardware. Previous work by the authors presented a novel method to produce a foveated image using a Laser-Based Scanning (LBS) display enabling a localized high resolution and large FOV solution for enhanced 3D cues. This work takes this further and presents an implementation that enables a multifocal image projection combined with a foveated display. Multifocal plains provide natural blurring and sharpness cues. The solution is comprised of multi degrees of freedom scanning MEMS mirrors, a laser projector, and an algorithm enabling foveated projection and changeable focal plains. As the focal plains could be changed from frame to frame, the combination of the created image along with foveated pixelization generates a more natural display. This allows visualizing enhanced depth cues which significantly improves the 3D perception and 3D user experience. Moreover, this setup enabled reduced form factor. The authors believe that the presented solution will enable a state-of-the-art user experience with an acceptable form factor that will enable commercialization into daily use AR/VR devices.

Conference Presentation

Citation Download Citation

R. Gabai, G. Cahana, M. Yehiel, G. Yearim, T. Yusupov, A. Baram, and M. Naftali "Enhanced 3D perception using Laser based scanning display", Proc. SPIE 11765, Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) II, 117650Q (27 March 2021); https://doi.org/10.1117/12.2580210

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available