双目标定

可参考：
https://blog.csdn.net/weixin_41586393/article/details/99306237
https://blog.csdn.net/u010056641/article/details/105665309

报错：Cameras are not connected through mutual observations, please check the dataset. Maybe adjust the approx. sync. tolerance.
双目不同步问题，参考：
https://www.it610.com/article/1288094620634361856.htm

报错：

采图有问题，重新采图
https://github.com/ethz-asl/kalibr/issues/301

imu标定

https://blog.csdn.net/weixin_30449453/article/details/95558882
https://blog.csdn.net/fang794735225/article/details/92804030

双目和imu联合标定

https://blog.csdn.net/weixin_41586393/article/details/99306237

报错可试一下：在标定命令最后添加 --timeoffset-padding 0.1
https://blog.csdn.net/u011178262/article/details/83316968
https://blog.csdn.net/GuoBen_/article/details/107079364