Основні поняття
Incorporating parallax cues in computer-generated holography (CGH) significantly improves the 3D perceptual realism of holographic near-eye displays, even with limited head movement.
Анотація
The authors investigate the perceptual realism of 3D scenes presented through holographic near-eye displays, considering natural viewing conditions. They simulate the impacts of eye movement, pupil size fluctuation, and directional sensitivity of the retina on the perceived 3D holographic scenes, and design and conduct user studies under various viewing conditions to determine the optimal formats that holographic displays need to reproduce in order to achieve 3D perceptual realism.
The key findings are:
- CGH algorithms designed for specific viewpoints exhibit noticeable deficiencies in achieving 3D realism.
- Holograms incorporating parallax cues consistently outperform other formats across different viewing conditions, including the center of the eyebox.
- The inclusion of parallax cues in CGH rendering plays a crucial role in enhancing the overall quality of the holographic experience.
- The user studies reveal that 4D-supervised CGH, which supports parallax cues, significantly improves 3D perceptual realism in various viewing conditions, even with limited head movements.
- The optimal number of views for 4D CGH supervision depends on the depth distribution of the scene, with more views required for scenes with a wider depth range.
The authors build a perceptual testbed of a full-color, high-quality holographic near-eye display to conduct the user studies, representing an initial stride towards delivering a perceptually realistic 3D experience with holographic near-eye displays.
Статистика
"Holographic near-eye displays are a promising technology to solve long-standing challenges in virtual and augmented reality display systems."
"Recent advancements in computer-generated holography (CGH) algorithms have shown a promising path toward a renaissance of computational holography."
"Our results indicate that CGH algorithms designed for specific viewpoints exhibit noticeable deficiencies in achieving 3D realism."
"Holograms incorporating parallax cues consistently outperform other formats across different viewing conditions, including the center of the eyebox."
"The inclusion of parallax cues in CGH rendering plays a crucial role in enhancing the overall quality of the holographic experience."
"The user studies reveal that 4D-supervised CGH, which supports parallax cues, significantly improves 3D perceptual realism in various viewing conditions, even with limited head movements."
"The optimal number of views for 4D CGH supervision depends on the depth distribution of the scene, with more views required for scenes with a wider depth range."
Цитати
"Holographic near-eye displays offer great potential as the next-generation platform for augmented and virtual reality displays due to their versatile functionalities providing high-resolution volumetric images with aberration and vision correction capabilities arising from complex amplitude modulation of light."
"Our results show that incorporating parallax cues significantly enhances the 3D user experience, even with limited head movement."
"This study represents a first step in the field of 3D visual experience with holographic near-eye displays and provides guidelines for creating perceptually realistic 3D holographic scenes."