On Reproducibility & Performance: an Addendum to Symmetry and Orbit Detection via Lie-Algebra Voting
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چکیده
2. Analysis. A local frame is constructed for each point pi ∈ P based on local (C(pi)) estimation of normal, principal curvatures (λmin, λmax), and principal curvature directions. 3. Sample pruning. A sample for which λmin = λmax is invariant under rotations around its normal, thus a point pair containing such a sample can not define a unique transformation. We reject this kind of samples by using a threshold θ on the ratios of curvatures by requiring | λmin λmax | < θ, where θ is set to 0.9 by default (instead of 0.75 in [Mitra et al., 2006]). The remaining set of samples forms the set P̄ .
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تاریخ انتشار 2016