Foveated Rendering and Streaming for 3D Graphics

Light fields capture both the spatial and angular rays, thus enabling free-viewpoint rendering and custom selection of the focal plane. Scientists can interactively explore pre-recorded microscopic light fields of organs, microbes, and neurons using virtual reality headsets. However, rendering high-resolution light fields at interactive frame rates requires a very high rate of texture sampling, which is challenging as the resolutions of light fields and displays continue to increase. In this paper, we present an efficient algorithm to visualize 4D light fields with 3D-kernel foveated rendering (3D-KFR). The 3D-KFR scheme coupled with eye-tracking has the potential to accelerate the rendering of 4D depth-cued light fields dramatically. We have developed a perceptual model for foveated light fields by extending the KFR for the rendering of 3D meshes. On datasets of high-resolution microscopic light fields, we observe 3.47\times-7.28\times speedup in light field rendering with minimal perceptual loss of detail. We envision that 3D-KFR will reconcile the mutually conflicting goals of visual fidelity and rendering speed for interactive visualization of light fields.


teaser image of A Log-Rectilinear Transformation for Foveated 360-degree Video Streaming

A Log-Rectilinear Transformation for Foveated 360-degree Video StreamingTVCG Honorable Mentions

IEEE Transactions on Visualization and Computer Graphics (TVCG), 2021.
Keywords: 360° video, foveation, virtual reality, live video stream-ing, log-rectilinear, summed-area table, eye tracking, digital world

teaser image of 3D-Kernel Foveated Rendering for Light Fields

3D-Kernel Foveated Rendering for Light Fields

IEEE Transactions on Visualization and Computer Graphics (TVCG), 2020.
Keywords: light field, foveated rendering, microscopic light field, eye tracking, visualization, eye tracking, interactive graphics
teaser image of Eye-Dominance-guided Foveated Rendering

Eye-Dominance-guided Foveated Rendering

IEEE Transactions on Visualization and Computer Graphics (TVCG, Special Issue of IEEE Conference on Virtual Reality and 3D User Interfaces), 2020.
Keywords: virtual reality, foveated rendering, perception, gaze-contingent rendering, ocular dominance, eye tracking, interactive graphics
teaser image of Kernel Foveated Rendering

Kernel Foveated RenderingMost read in PACMCGIT

Proceedings of the ACM on Computer Graphics and Interactive Techniques (I3D), 2018.
Keywords: foveated rendering, perception, log-polar mapping, eye-tracking, virtual reality, head-mounted displays, eye tracking, interactive graphics


A Log-Rectilinear Transformation for Foveated 360-degree Video Streaming

Eye-Dominance-guided Foveated Rendering

3D-Kernel Foveated Rendering for Light Fields


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