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MR360: Mixed Reality Rendering for 360° Panoramic Videos.

Taehyun Rhee, Lohit Petikam, Benjamin Allen

    IEEE Transactions on Visualization and Computer Graphics
    |January 28, 2017
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces MR360, an interactive mixed reality (MR) system. It seamlessly integrates 3D virtual objects into live 360-degree videos for immersive head-mounted display experiences without pre-computation.

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    Area of Science:

    • Computer Graphics
    • Immersive Technologies
    • Virtual Reality

    Background:

    • Conventional mixed reality (MR) systems often require complex setups or pre-computation.
    • Integrating virtual objects seamlessly into dynamic 360-degree video environments presents significant challenges.

    Purpose of the Study:

    • To develop a novel system, MR360, for interactive MR experiences using standard low dynamic range (LDR) 360-degree videos.
    • To enable realistic compositing of 3D virtual objects into live 360-video streams for head-mounted displays (HMDs).

    Main Methods:

    • Utilizes the input 360-video as a lighting source for image-based lighting (IBL) to illuminate virtual objects.
    • Optimizes IBL by detecting salient light regions to reduce light sources and create perceptible shadows.
    • Employs real-time differential rendering to synthesize the illumination of virtual 3D objects into the 360-video.

    Main Results:

    • Achieves perceptually optimized, fast, and believable lighting for virtual objects using LDR 360-video.
    • Generates realistic soft shadows by adjusting shadow penumbra based on detected light areas.
    • Successfully synthesizes interactive MR scenes with high-performance rendering suitable for HMDs.

    Conclusions:

    • MR360 provides a seamless illusion of interaction between virtual 3D objects and live 360-video backgrounds.
    • The system's pipeline requires no pre-computation, enabling real-time interactive MR experiences with live 360-video streams.
    • MR360 offers a viable solution for high-performance, realistic MR experiences on HMDs using conventional 360-video content.