Change SVD algorithm in covariance computation. Switch from JacobiSVD to BDCSVD in ComputeCovarianceValuesUsingDenseSVD. This should increase the performance for larger covariance matrices. See https://eigen.tuxfamily.org/dox/classEigen_1_1BDCSVD.html Change-Id: Icde4dec89f506b638b0f9f1aee3b7cfc9e4d72fc
Ceres Solver is an open source C++ library for modeling and solving large, complicated optimization problems. It is a feature rich, mature and performant library which has been used in production at Google since 2010. Ceres Solver can solve two kinds of problems.
Please see ceres-solver.org for more information.