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Published 20 hours ago • verified publisher icon alexandrx

I can't see any images

Open akamob opened this issue 2 years ago • 2 comments

Hi, Thank you for the great work.

I use VLP-16 lidar and record the point cloud as rosbag file. I replay the rosbag file and run your code with this command: roslaunch lidar_cloud_to_image cloud2image.launch sensor_model:="VLP-16" point_type:="XYZI" v_scale:=3.0 output_mode:="SINGLE" 8bpp:=true equalize:=true flip:=true But i can't see any images in ros rviz. The topic shows "No Image received".

May i have your suggestions to fix it? Any help is much appreciated!

akamob avatar Jul 21 '22 06:07 akamob

first check the topics are available like reflectivity, intensity etc. then check the data is available on those topics from rostopic echo. If it's available then run this command on another window: $ rosrun image_view image_view image:=/c2i_reflectence_image It's for the reflectence image.

Shibaditya99 avatar Oct 10 '22 08:10 Shibaditya99

The subscribed topic is "/points_raw", but the published topic is "/velodyne_points", so I don't think it's displayed. In that case, you can display it by adding "cloud_topic:=/velodyne_points" at runtime.

yusuke-y819 avatar Sep 19 '23 08:09 yusuke-y819