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Published on Dec 9, 2010
Christopher Fastie of Middlebury College talks at the first Fine International Conference on Gigapixel Imaging for Science, November 11-13 2010 at Carnegie Mellon University in Pittsburgh, PA.
Common forest inventory technique involves making 360° visual scans within forests and selecting a sample of trees by assessing the horizontal angle subtended by their trunks. These samples allow quick and accurate estimates of forest stand basal area. All of the information required to complete such estimates can be obtained from high-resolution panoramic photographs of forest interiors.The image- based method has great precision and acceptable accuracy when tree trunks are not obscured by other trees or shrubs, when stitching is error free, and when adequate depth of field provides well focused images. This technique may have application using panoramas taken for other purposes, including historical photographs.