Perceptually-guided foveation for light field displays

Qi Sun, Fu Chung Huang, Joohwan Kim, Li Yi Wei, David Luebke, Arie Kaufman

    Research output: Contribution to journalConference articlepeer-review

    Abstract

    A variety of applications such as virtual reality and immersive cinema require high image quality, low rendering latency, and consistent depth cues. 4D light ield displays support focus accommodation, but are more costly to render than 2D images, resulting in higher latency. The human visual system can resolve higher spatial frequencies in the fovea than in the periphery. This property has been harnessed by recent 2D foveated rendering methods to reduce computation cost while maintaining perceptual quality. Inspired by this, we present foveated 4D light ields by investigating their efects on 3D depth perception. Based on our psychophysical experiments and theoretical analysis on visual and display bandwidths, we formulate a content-adaptive importance model in the 4D ray space. We verify our method by building a prototype light ield display that can render only 16% - 30% rays without compromising perceptual quality.

    Original languageEnglish (US)
    Article numbera192
    JournalACM Transactions on Graphics
    Volume36
    Issue number6
    DOIs
    StatePublished - Nov 20 2017
    EventACM SIGGRAPH Asia Conference, SA 2017 - Bangkok, Thailand
    Duration: Nov 27 2017Nov 30 2017

    Keywords

    • Computational display
    • Foveation
    • Light ield
    • Sampling

    ASJC Scopus subject areas

    • Computer Graphics and Computer-Aided Design

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