Problems when I try to fix strip aligment with L1

[Alberto canahuate gonzalez]

Hello Everyone!

My question is the next one. I want to adjust my point cloud that i processed using DJI Terra and L1 sensor. Does anyone knows the way i have to organize the POS file to fix my trajectory adjustment in LIDAR 360?... I think there should be a wat to do it, but i dont know how!

I hope you can help me!

Greetings everyone!

[Alvin Qiu]

Hi Alberto,

Thank you for posting your question on the LiDAR360 forum. 

For strip alignment, you may try the boresight tool and the trajectory adjustment tool in LiDAR360. For DJI L1 data, the required trajectory data is in SBET.OUT format. This format can be directly accepted by LiDAR360, but requires GPS time format conversion to make the GPS time between point clouds and trajectories the same.

Once you import the trajectory file into LiDAR360, a window should pop up and ask you to convert GPS time. The input GPS time should be GPS Week Time, and convert it to Adjusted Standard GPS Time. The survey date can be normally determined by looking at the name of the SBET.OUT trajectory file. Please also confirm the coordinate system of the trajectory is defined as the same as the point cloud. 

If you require further assistance, please contact sup...@greenvalleyintl.com

Best,

Alvin Qiu

Senior Solutions Engineer

GreenValley International