Re:LiDAR scans are finding hidden Roman roads and cutting crime
by jadavies on Saturday March 17, 2018 @06:26AM
(#16606301)
That's very nice!
I started doing something similar when the Welsh LiDAR data was released ( details in https://theretiredengineer.wordpress.com/category/lidar/ ). I had written some code to manipulate PLY files when I was trying to create 3D models of standing stones using photogrammetry. It was then fairly easy to modify that code to create PLY models using the LiDAR data. However I found two problems for the area that I was interested in ( parts of south west Wales )
1. The LiDAR data coverage was a bit patchy
2. There were gaps in the data files which resulted in holes in the model
There was nothing I could do about #1 but it should be fairly easy to fix #2. The other option would be to use a GIS of some sort to process the data.
I started doing something similar when the Welsh LiDAR data was released ( details in https://theretiredengineer.wordpress.com/category/lidar/ ). I had written some code to manipulate PLY files when I was trying to create 3D models of standing stones using photogrammetry. It was then fairly easy to modify that code to create PLY models using the LiDAR data. However I found two problems for the area that I was interested in ( parts of south west Wales )
There was nothing I could do about #1 but it should be fairly easy to fix #2. The other option would be to use a GIS of some sort to process the data.