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Author Topic: Calculate DEM resolution  (Read 1863 times)

tuffi

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Calculate DEM resolution
« on: November 29, 2017, 12:24:03 PM »
Hi,

i am looking for a way to calculate the possible  output DEM resolution before perform dense cloud generation. So I can decide the dense cloud quality relative to me DEM requirement and save more time possible in the generation of the dense cloud.

Someone can help me?

Thanks

Emanuele

stihl

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Re: Calculate DEM resolution
« Reply #1 on: November 29, 2017, 01:34:09 PM »
Hi Emanuele,

That's quite simple. If you have your aligned project, simply go to File > Generate Report and save this pdf file. Open it and go to page 2. Look at the value behind the Ground resolution.

If it for instance gives you a value of 2.0 cm/pix you can calculate the native DEM resolution by multiplying the dense cloud quality levels with the ground resolution.

Ultra high  = 1 * 2.0 = DEM resolution of 2 cm
High          = 2 * 2.0 = DEM resolution of 4 cm
Medium    = 4 * 2.0 = DEM resolution of 8 cm
Low          = 8 * 2.0 = DEM resolution of 16 cm
Lowest     = 16 * 2.0 = DEM resolution of 32 cm