Walton, DR;
Kavakli, K;
Dos Anjos, RK;
Swapp, D;
Weyrich, T;
Urey, H;
Steed, A;
... Aksit, K; + view all
(2022)
Metameric Varifocal Holograms.
In:
Proceedings - 2022 IEEE Conference on Virtual Reality and 3D User Interfaces, VR 2022.
(pp. pp. 746-755).
IEEE: Christchurch, New Zealand.
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Abstract
Computer-Generated Holography (CGH) offers the potential for genuine, high-quality three-dimensional visuals. However, fulfilling this potential remains a practical challenge due to computational complexity and visual quality issues. We propose a new CGH method that exploits gaze-contingency and perceptual graphics to accelerate the development of practical holographic display systems. Firstly, our method infers the user's focal depth and generates images only at their focus plane without using any moving parts. Second, the images displayed are metamers; in the user's peripheral vision, they need only be statistically correct and blend with the fovea seamlessly. Unlike previous methods, our method prioritises and improves foveal visual quality without causing perceptually visible distortions at the periphery. To enable our method, we introduce a novel metameric loss function that robustly compares the statistics of two given images for a known gaze location. In parallel, we implement a model representing the relation between holograms and their image reconstructions. We couple our differentiable loss function and model to metameric varifocal holograms using a stochastic gradient descent solver. We evaluate our method with an actual proof-of-concept holographic display, and we show that our CGH method leads to practical and perceptually three-dimensional image reconstructions.
| Type: | Proceedings paper |
|---|---|
| Title: | Metameric Varifocal Holograms |
| Event: | 2022 IEEE Conference on Virtual Reality and 3D User Interfaces (VR) |
| Dates: | 12 Mar 2022 - 16 Mar 2022 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/VR51125.2022.00096 |
| Publisher version: | https://doi.org/10.1109/VR51125.2022.00096 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Visualization , Solid modeling , Three-dimensional displays , Stochastic processes , Virtual reality , Holography , User interfaces |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10149285 |
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