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详细推导张正友标定法

详细推导方法见代码中的paper,原文后面有我详细的一些注释,代码里面也是分模块写的,希望对大家的学习有帮助。

自己也写了一个blog,大家有需要可以去看看https://blog.csdn.net/qq_38650944/article/details/128714256?spm=1001.2014.3001.5502

结果对比

参数 zhang(我们) opencv
相机内参 fx=589.9421322083375
fy=589.0314402379594
u0=323.830691209651
v0=240.716451101392
fx=589.9534727708858
fy=589.043571094065
u0=323.8345405252027
v0=240.7136136327917
畸变系数 k1=0.08908862963423921
k2=-0.0927595079832754
k1=0.08907964252174579
k2=-0.09266222570771097
重投影误差 0.275026 0.274992

可以发现内参和重投影误差的差距都在0.01以内,差距很小

Reference

论文: "A Flexible New Technique for Camera Calibration" (2000).

参考:
https://github.com/zhiyuanyou/Calibration-ZhangZhengyou-Method https://github.com/SHU-FLYMAN/ZhangZhengYou

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张正友内参标定,内含详细推导

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