Distinctive Image Features from Scale-Invariant Keypoints
International Journal of Computer Vision
Photo tourism: exploring photo collections in 3D
ACM SIGGRAPH 2006 Papers
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We propose a framework for three-dimensional (3D) model reconstruction using structure-from-motion (SfM). Our primary application is scanning forest canopies for ecological research (as shown in Figure 1) using photos taken from a radio-controlled helicopter, although the methods apply to any series of photographs taken along a path with the camera pointing perpendicular to the path.