Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

用百度网盘中的 dataset: Service_Center1.bag 去跑代码,但效果并不理想 #3

Open
LiXiaoQiang123z opened this issue Oct 11, 2022 · 2 comments

Comments

@LiXiaoQiang123z
Copy link

我用的是 electech6/LVI-SAM_detailed_comments 中的代码, branch = master 。 去跑Service_Center1.bag,但效果并不理想。
是因为我拉取的branch不对吗? 那需要拉取哪个分支?
非常感谢

@shuttworth
Copy link
Owner

First, you said the result was not satisfactory, do you mean the map built is unsatified?
Second, because the imu timestamp is not accurate, the effect is not very good. At present, a new batch of equipment has arrived, and will re-record data packets after assembling
Last, you can try M2DGR datasets , branch = M2DGR_branch.

@LiXiaoQiang123z
Copy link
Author

非常感谢回复解答。
针对第一个: First,建图过程中的估计漂移抖动剧烈。 且一直提示
[ERROR] [1665921575.994378461]: VINS big IMU acc bias estimation XXX, restart estimator! [ERROR] [1665921575.994407782]: VINS failure detection! [ERROR] [1665921575.995304465]: VINS system reboot!
rviz中建图结果显示如下:
图片

针对第二个:确实,vins中一直提示IMU的acc值有问题, 可能就是IMU时间戳对齐等的影响吧。
针对第三点:我目前正在下载该M2DGR数据集,非常感谢提示。

需要在占用下您的时间,有个疑问: params_daheng.yaml 文件中的 lidar_to_camry=-0.8 ,是为什么呢?
如果说lidar_to_cam对应的坐标变换是 lidar to imu的话, 平移关系t是一致的,旋转关系ry不应该也是为0吗? 为什么会是 -0.8呢?
还是说lidar_to_cam不完全是lidar to imu ,而是lidar to world , 而这个“world”与imu的坐标系 位置一致,但坐标轴有所不同呢?
还是说是别的原因呢?
非常感谢。

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

2 participants