Depth-of-Field Rendering by Pyramidal Image Processing |
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Authors: | M Kraus M Strengert |
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Affiliation: | Computer Graphics and Visualization Group, Informatik 15, Technische Universität München, Germany;Visualization and Interactive Systems Group, Institut VIS, Universität Stuttgart, Germany |
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Abstract: | We present an image-based algorithm for interactive rendering depth-of-field effects in images with depth maps. While previously published methods for interactive depth-of-field rendering suffer from various rendering artifacts such as color bleeding and sharpened or darkened silhouettes, our algorithm achieves a significantly improved image quality by employing recently proposed GPU-based pyramid methods for image blurring and pixel disocclusion. Due to the same reason, our algorithm offers an interactive rendering performance on modern GPUs and is suitable for real-time rendering for small circles of confusion. We validate the image quality provided by our algorithm by side-by-side comparisons with results obtained by distributed ray tracing. |
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Keywords: | I 3 3 [Computer Graphics]: Picture/Image Generation I 3 7 [Computer Graphics]: Three-Dimensional Graphics and Realism |
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