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Google Releases Key Part of Street View Pipeline

Posted by Soulskill on from the now-you-can-map-your-pillow-fort dept.

New submitter drom writes "Google released a key part of their Street View pipeline as open source on Tuesday: Ceres Solver. It's a large-scale nonlinear least squares minimizer. What does that mean? It's a way to fit a model (like expected position of a car) to data (like GPS positions or accelerometers). The library is completely general and works for many problems. It offers state of the art performance for bundle adjustment problems typical in 3D reconstruction, among others."

1 of 44 comments (clear)

  1. Yeah... by IamTheRealMike · · Score: 5, Funny

    From the source code:

    // The reason why the Triggs approximation becomes so poor is
    // because the curvature correction that it applies to the gauss
    // newton hessian goes from being a full rank correction to a rank
    // deficient correction making the inversion of the Hessian fraught
    // with all sorts of misery and suffering.

    Yeah, that's pretty much how maths makes me feel as well ...