46‐4: Distinguished Student Paper: Perspective Correct Occlusion‐Capable Augmented Reality Displays using Cloaking Optics Constraints

Abstract

Perspective‐correct occlusion‐capable augmented reality displays are generalized using an optical cloak constraint for ray transfer analysis or simulations; any ray entering the optical system exits at the height and angle as if it passed through empty space. We analyze several systems with two‐, three‐, and four‐lens groups in inline, folded, and looped configurations. We design and demonstrate a four‐lens folded optical cloak and a three‐lens inverted cloak with an erecting prism.

40‐2: Demonstration of a Novel Single‐Layer Double‐Pass Optical Architecture for a Pupil‐Matched Occlusion‐Capable Optical See‐Through Head‐Mounted Display

“…Again the significance of the result is that correct occlusion relationships are created and used to give an unparalleled sense of depth to a virtual image in an OST-HMD. Fig 4(b) demonstrates significant improvements of our newly proposed OCOST-HMD architecture in terms of system specification such as FOV and resolution, optical performance, dynamic range of the real and virtual content, , form factor, and viewpoint perspective, as compared to previous works [2][3][4][5][6][7][8][9][10][11][12].…”

“…Un-edited AR view captured by a camera through a typical OST-HMD that lacks occlusion capability Recently there have been several different attempted solutions to achieve mutual occlusion in an OST-HMD. These attempts can be broken down into two clear categories: direct ray blocking occlusion, which involves the selective blocking of rays from a see-through scene without focusing them [3][4][5] and per-pixel modulation occlusion, which requires an objective optics to focus the see-through view at an intermediate image plane to selectively modulate the real scene pixel by pixel through an occlusion mask [6][7][8][9][10][11][12]. While both occlusion methods have their unique advantages, per-pixel modulation occlusion tends to be preferred when it comes to environment versatility, light efficiency, diffraction artifacts and accuracy of the occlusion mask(s).…”