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Global pose estimation and tracking for RGB-D localization and 3D mapping

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Academic year: 2021

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Figure 2.1: View registration problem example. These images were taken at different viewpoints, times and with a different camera
Figure 2.5: Subsampling example of a dataset. (a) By using strategies as Poisson disk 3D sub- sub-sampling [3D model data, Airbus] or by (b) Harris corner detector, the number of photometric data to be processed is reduced as well as the computational cost
Figure 2.6: kd - tree construction and example on 3D points. The method divides a dataset into nodes with a determined number of points per node, based on the median of each coordinate.
Figure 2.8: Example of matched points by using a multidimensional kd-tree (FLANN library) by considering different features dimensions, where the correspondences are shown in green (a) Exact correspondences when two datasets are aligned
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