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Large environment rendering using plenoptic primitives

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4 Author(s)
Sing Bing Kang ; Microsoft Res., Redmond, WA, USA ; Minsheng Wu ; Yin Li ; Heung-Yeung Shum

One of the most difficult tasks in computer graphics is to enable virtual walkthroughs in very large and complicated environments that are photorealistic, seamless, and in real time. Current image-based rendering techniques, while capable of photorealism and interactive speeds, have failed in practice to extend to visualizations of such environments. We demonstrate an approach that defines a virtual walkthrough experience using plenoptic primitives (PPs). A PP can be any type of local visual experience: 360° static panorama, panoramic video (PV), lumigraph/light field representation, or concentric mosaics (CMs). By combining them judiciously, user experience can be authored with significantly reduced effort while maintaining high-quality user experience. We illustrate our technique on synthetic and real environments using PVs and CMs and show how the problem of achieving smooth transitions among PVs and CMs can be solved by using position-dependent local geometries.

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Circuits and Systems for Video Technology, IEEE Transactions on  (Volume:13 ,  Issue: 11 )