RoZhong

> color May I ask what your color is? I don't know what this 20Hz is

I have the same proble with zed2 camera

try c++11 to c++14

Because I am afraid of version problems, I am using ORB_slam3-v0.3. There is no problem in running ORB3 alone, but after adding ros_wrapper, there will be an OpenCV error when...

> I just "solved" this issue. It seems to be something to do with some changes that were made to ORB_SLAM3 when going from `v0.3` to `v0.4`, and checking out...

Sorry I didn't experiment until today. The answer is below ，it is still error   

> 一些用户报告在提交后`e21f25992369d39c9abb920259dd8fef3f30d973`遇到了段错误（参见问题#2）。维护者无法重现此问题，因此需要观察未来是否会出现更多用户。由于问题很可能是由线程处理的更正引入的，因此我们创建了一个特殊的分支[nothreadfix](https://github.com/VIS4ROB-lab/covins/tree/versions/nothreadfix)，它与当前的 master 类似，但没有线程处理的更正。 > > 因此，当使用此分支时，程序仍会报告`terminate called without an active exception`终止，可以忽略。 but this time It runs to "wait for back-end response", I looked at the last one and it...

> Some motion excitation is needed to initialize IMU Can you describe it in detail, how do you do it?