Publication: A new reconstruction filter for undersampled light fields
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Date
2003
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Eurographics Association/ Association for Computing Machinery
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Citation
Stewart, Jason, Jingyi Yu, Steven J. Gortler, and Leonard McMillan. 2003. A new reconstruction filter for undersampled light fields. In Eurographics Symposium on Rendering: 14th Eurographics Workshop on Rendering, June 25 - 27, 2003, Leuven, Belgium (EGWR 2003), ed. Christensen, Per H., Daniel Cohen-Or, Philip Dutré, and Frank Suykens, 150-156. New York, NY: Association for Computing Machinery. Also published in ACM International Conference Proceeding Series 44: 150-156.
Abstract
This paper builds on previous research in the light field area of image-based rendering. We present a new reconstruction filter that significantly reduces the "ghosting" artifacts seen in undersampled light fields, while preserving important high-fidelity features such as sharp object boundaries and view-dependent reflectance. By improving the rendering quality achievable from undersampled light fields, our method allows acceptable images to be generated from smaller image sets. We present both frequency and spatial domain justifications for our techniques. We also present a practical framework for implementing the reconstruction filter in multiple rendering passes.
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Keywords
image-based rendering, light field, aliasing, sampling, lumigraph, reconstruction, multipass rendering
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