Zhang Qinghui

> Hi, could you post your rqt_graph to better identify the problem? Also, did you try this: [object3d_detector/launch/object3d_detector_ol.launch](https://github.com/yzrobot/online_learning/blob/Kinetic/object3d_detector/launch/object3d_detector_ol.launch)? Best Thanks for your reply. At first, I thought that running the...

> Node connection looks ok... could you try to change in Rviz "Fixed Frame" to `base_link` or `odom` to see, or in case of missing tf tree, try > >...

yes,it is amazing. But why the piontcloud is so dense？

Thanks for your reply. I got it. I have try to run your code with my data bag from VLP16.But the result is not so good. What's your human body...

Thanks for your reply.I did not find the parameter in 'hdl_people_tracking_static.launch' or 'hdl_people_tracking.launch' to adjust the lines of velodyne. In addition, I can detect some human body without adjust params,...

Shouldn't the camera projection matrix P be  Excuse me, is it something I ignored？