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Title:
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COMPARISON OF BILATERAL FILTERING STRATEGIES FOR VIDEO PROCESSING IN COLOR AND DEPTH |
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Author(s):
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Benjamin Langmann, Klaus Hartmann, Otmar Loffeld |
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ISBN:
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978-972-8939-22-9 |
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Editors:
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Yingcai Xiao, Tomaz Amon and Piet Kommers |
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Year:
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2010 |
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Edition:
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Single |
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Keywords:
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Bilateral Filter, Time-of-Flight, PMD, Superresolution. |
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Type:
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Full Paper |
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First Page:
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76 |
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Last Page:
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84 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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For a few years cameras have been available that provide depth values gained from a PMD chip through the Time-of-Flight principle. Recently, cameras combining a normal color chip with such a PMD chip in a monocular setup have been developed. One drawback of these 2D/3D cameras is that the resolution of the depth images is much lower than those of the color images. This is true whenever PMD cameras and normal cameras are used together. However, for certain applications high resolution depth images are desirable. The color images can be utilized to generate high resolution depth images which are closer to the ground truth than a simple upscaling. A common method to fuse the color and depth images is bilateral filtering and this rather general approach is adopted in several methods. In this paper different bilateral filtering strategies are compared in theory as well as in practice and especially the iterative application is addressed. Similar approaches based on a cost volume or on Markov Random Fields are discussed additionally. |
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