Perception-Driven Hybrid Foveated Depth of Field Rendering for Head-Mounted Displays

Liu, Jingyu; Mantel, Claire; Forchhammer, Søren

doi:10.1109/ismar52148.2021.00014

“…Foveated rendering has been shown to potentially mitigate cybersickness [23,24]. While various foveated rendering algorithms are available, we have opted to utilize a conventional depth-of-field rendering implementation because of its accessibility and its ability to be easily parameterized.…”

Section: Depth-of-field Renderingmentioning

confidence: 99%

Gaze-Contingent Adaptation of VR Stereo Parameters for Cybersickness Prevention

Terzioglu,

Celikcan,

Capin

2024

Preprint

0

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Extended exposure to virtual reality displays has been linked to the emergence of cybersickness, characterized by symptoms such as nausea, dizziness, fatigue, and disruptions in eye movements. The main objective of our study is to examine the effects of real-time fine-tuning of stereo parameters and blurriness in virtual reality on the discomfort level of users who are experiencing motion sickness triggered by the display. Our hypothesis proposes that by dynamically correcting the rendering settings, the symptoms of motion sickness can be relieved and the overall VR user experience can be improved. Our methodology commences with a prediction model for the comfort level of the viewer based on their gaze parameters, such as pupil diameter, blink count, gaze position, and fixation duration. We then propose a method to dynamically adapt the stereoscopic rendering parameters by considering the predicted comfort level of the viewer.

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“…Results of the perceptual study showed that tracing rays reduced by more than 69% while rendering quality of this system was rated almost on par with full rendering. Liu et al [149] developed a mathematical model to simulate the DoF effects of human eyes in VR and subsequently performed DoF-based stochastic sampling to simulate retinal blur according to this mathematical model.…”

Section: Multi-spatial Resolution Based Ray Tracingmentioning

confidence: 99%

Foveated rendering: A state-of-the-art survey

Wang

¹

,

Shi

²

,

Liu

³

2023

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Recently, virtual reality (VR) technology has been widely used in medical, military, manufacturing, entertainment, and other fields. These applications must simulate different complex material surfaces, various dynamic objects, and complex physical phenomena, increasing the complexity of VR scenes. Current computing devices cannot efficiently render these complex scenes in real time, and delayed rendering makes the content observed by the user inconsistent with the user’s interaction, causing discomfort. Foveated rendering is a promising technique that can accelerate rendering. It takes advantage of human eyes’ inherent features and renders different regions with different qualities without sacrificing perceived visual quality. Foveated rendering research has a history of 31 years and is mainly focused on solving the following three problems. The first is to apply perceptual models of the human visual system into foveated rendering. The second is to render the image with different qualities according to foveation principles. The third is to integrate foveated rendering into existing rendering paradigms to improve rendering performance. In this survey, we review foveated rendering research from 1990 to 2021. We first revisit the visual perceptual models related to foveated rendering. Subsequently, we propose a new foveated rendering taxonomy and then classify and review the research on this basis. Finally, we discuss potential opportunities and open questions in the foveated rendering field. We anticipate that this survey will provide new researchers with a high-level overview of the state-of-the-art in this field, furnish experts with up-to-date information, and offer ideas alongside a framework to VR display software and hardware designers and engineers.

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Gaze-contingent adaptation of VR stereo parameters for cybersickness prevention

Terzioğlu,

Celikcan,

Capin

2024

Vis Comput

0

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Extended exposure to virtual reality displays has been linked to the emergence of cybersickness, characterized by symptoms such as nausea, dizziness, fatigue, and disruptions in eye movements. The main objective of our study is to examine the effects of real-time fine-tuning of stereo parameters and blurriness in virtual reality on the discomfort level of users who are experiencing motion sickness triggered by the display. Our hypothesis proposes that by dynamically correcting the rendering settings, the symptoms of motion sickness can be relieved and the overall VR user experience can be improved. Our methodology commences with a prediction model for the comfort level of the viewer based on their gaze parameters, such as pupil diameter, blink count, gaze position, and fixation duration. We then propose a method to dynamically adapt the stereoscopic rendering parameters by considering the predicted comfort level of the viewer.

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Perception-Driven Hybrid Foveated Depth of Field Rendering for Head-Mounted Displays

Cited by 5 publications

References 52 publications

Gaze-Contingent Adaptation of VR Stereo Parameters for Cybersickness Prevention

Gaze-Contingent Adaptation of VR Stereo Parameters for Cybersickness Prevention

Foveated rendering: A state-of-the-art survey

Gaze-contingent adaptation of VR stereo parameters for cybersickness prevention

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