Agisoft Metashape

Agisoft Metashape => General => Topic started by: tuffi on November 29, 2017, 12:24:03 PM

Title: Calculate DEM resolution
Post by: tuffi 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
Title: Re: Calculate DEM resolution
Post by: stihl 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