Occassional thoughts about orienteering

Thursday, April 03, 2008

More Lidar...


Oh yeah, that's "unsharp-masked filtered (high-pass) data. That is, the slowly varying elevation is removed and sharp features are enhanced...., so you can see buildings and trees in that one."

The image came to me in my email from an orienteer who downloaded some of the Kansas Lidar data and did some magic to the raw data.

I know very little about computers and much less about Lidar data. But, I think I might try to learn a bit more.

After a few more minutes poking around the internet to learn about Lidar, I discovered how easy it is to create a contour map at 1 meter interval. The example below is an area near Perry Lake (north of Lawrence). It shows a lot of contour detail in the major reentrants. I'm guessing (hoping) that is shows enough detail to easily fieldcheck the stream bed.

Back to okansas.blogspot.com.

posted by Michael | 7:50 PM


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