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Structure-from-Motion (SfM) methods can be broadly categorized as incremental or global according to their ways to estimate initial camera poses. While incremental system has advanced in robustness and accuracy, the efficiency remains its key challenge. To solve this problem, global reconstruction system simultaneously estimates all camera poses from the epipolar geometry graph, but it is usually...
How to average translations is the single most difficult task in global structure-from-motion (SfM) to fully tap its potentials in terms of reconstruction efficiency and accuracy since usually only noisy translation directions can be factored out from essential matrices due to the inevitable matching outliers. To tackle this problem, this work proposes a two-step strategy. Firstly, a “2-point method”...
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