CP-Cert certifies outlier-robust pose registration up to 1000x faster than direct SDP solvers

zhenjun_zhao · x · 2026-09-05

From Timothy Barfoot's group, CP-Cert is a certifiable method for non-convex robotics problems whose SDP relaxations are degenerate. Starting from a candidate solution, it perturbs the primal solution into the interior of the PSD cone and converges back along the central path to obtain a global-optimality certificate efficiently via indirect linear algebra, sparsity, and parallelism. Applied to matrix-weighted pose registration and pointcloud data association (with a novel SDP relaxation), it achieves runtimes up to three orders of magnitude faster than state-of-the-art direct solvers.

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