hybrid SFM fail

[QinZiwen]

When I use TheiaSFM's hybrid model, some errors like:

F1019 11:35:54.712178 2421343104 map_util.h:96] Check failed: it != collection.end() Map key not found: 46
*** Check failure stack trace: ***
    @        0x105360efd  google::LogMessage::SendToLog()
    @        0x105361677  google::LogMessage::Flush()
    @        0x105364bf7  google::LogMessageFatal::~LogMessageFatal()
    @        0x105361f89  google::LogMessageFatal::~LogMessageFatal()
    @        0x1045f29b4  theia::RobustRotationEstimator::EstimateRotations()
    @        0x104604a56  theia::HybridReconstructionEstimator::Estimate()
    @        0x10467ba1d  theia::R

[QinZiwen]

And I want to know the difference between incremental and hybrid, is hybrid model can get better result of reconstruction? Thanks!

[sweeneychris]

Hybrid is a combination of global and incremental -- rotations are estimated with the global method and the positions are estimated incrementally. It's pretty robust and fast but may not be tuned super well