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Occlusion Leak Compensation for Optical See-Through Displays Using a Single-Layer Transmissive Spatial Light Modulator

Published: 01 November 2017 Publication History

Abstract

We propose an occlusion compensation method for optical see-through head-mounted displays (OST-HMDs) equipped with a singlelayer transmissive spatial light modulator (SLM), in particular, a liquid crystal display (LCD). Occlusion is an important depth cue for 3D perception, yet realizing it on OST-HMDs is particularly difficult due to the displays' semitransparent nature. A key component for the occlusion support is the SLM—a device that can selectively interfere with light rays passing through it. For example, an LCD is a transmissive SLM that can block or pass incoming light rays by turning pixels black or transparent. A straightforward solution places an LCD in front of an OST-HMD and drives the LCD to block light rays that could pass through rendered virtual objects at the viewpoint. This simple approach is, however, defective due to the depth mismatch between the LCD panel and the virtual objects, leading to blurred occlusion. This led existing OST-HMDs to employ dedicated hardware such as focus optics and multi-stacked SLMs. Contrary to these viable, yet complex and/or computationally expensive solutions, we return to the single-layer LCD approach for the hardware simplicity while maintaining fine occlusion—we compensate for a degraded occlusion area by overlaying a compensation image. We compute the image based on the HMD parameters and the background scene captured by a scene camera. The evaluation demonstrates that the proposed method reduced the occlusion leak error by 61.4% and the occlusion error by 85.7%.

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  • (2023)Gaze Depth Estimation for In-vehicle AR DisplaysProceedings of the Augmented Humans International Conference 202310.1145/3582700.3583707(323-325)Online publication date: 12-Mar-2023
  • (2023)Add-on Occlusion: Turning Off-the-Shelf Optical See-through Head-mounted Displays Occlusion-capableIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2023.324706429:5(2700-2709)Online publication date: 1-May-2023
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      cover image IEEE Transactions on Visualization and Computer Graphics
      IEEE Transactions on Visualization and Computer Graphics  Volume 23, Issue 11
      Nov. 2017
      129 pages

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      IEEE Educational Activities Department

      United States

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      Published: 01 November 2017

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      View all
      • (2024)StainedSweeper: Compact, Variable-Intensity Light-Attenuation Display with Sweeping Tunable RetardersIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2024.337205830:5(2682-2692)Online publication date: 4-Mar-2024
      • (2023)Gaze Depth Estimation for In-vehicle AR DisplaysProceedings of the Augmented Humans International Conference 202310.1145/3582700.3583707(323-325)Online publication date: 12-Mar-2023
      • (2023)Add-on Occlusion: Turning Off-the-Shelf Optical See-through Head-mounted Displays Occlusion-capableIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2023.324706429:5(2700-2709)Online publication date: 1-May-2023
      • (2022)Look over there! Investigating Saliency Modulation for Visual Guidance with Augmented Reality GlassesProceedings of the 35th Annual ACM Symposium on User Interface Software and Technology10.1145/3526113.3545633(1-15)Online publication date: 29-Oct-2022
      • (2022)Color Contrast Enhanced Rendering for Optical See-Through Head-Mounted DisplaysIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2021.309168628:12(4490-4502)Online publication date: 1-Dec-2022
      • (2022)Design of a Pupil-Matched Occlusion-Capable Optical See-Through Wearable DisplayIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2021.307606928:12(4113-4126)Online publication date: 1-Dec-2022
      • (2021)Towards Indistinguishable Augmented RealityACM Computing Surveys10.1145/345315754:6(1-36)Online publication date: 13-Jul-2021

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