In this paper, we introduce an efficient image based rendering system for concentric mosaics, which can render stereo pair images of real scene in real time, with improved image qualities. We will mainly focus on related user interface issues and three interpolation algorithms: point sampling, linear interpolation with infinite or constant depth.
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.Index Terms-Concentric mosaics (CMs), image-based rendering, panoramic video (PV), virtual environment walkthrough.
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