Dual of Absolute Quadric for camera self calibration

Dual of Absolute Quadric (DAQ)

开发者_开发知识库

Just wondering if someone in this group has worked with accurate estimation of Dual of Absolute Quadric for camera calibration? Any code in Matlab?

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libmv has a C++ implementation of the linear self-calibration technique described in the paper "Visual modeling with a hand-held camera" by Pollefeys et al. I don't know whether that code works, though; libmv seems to still be in the early stages of development.