Topics

1

General / Elevation Value

« on: March 22, 2018, 02:48:46 AM »

Hello,

I am trying to make a comparison between public LIDAR and UAV + Photoscan elevations. However, even though I made their datums the same on ArcMap, the elevations that Photoscan is giving me is way too far off. Does someone have an idea as to why this is. and how I could fix it?

Thank You

2

General / DEM Compare/Contrast

« on: July 13, 2017, 09:57:31 PM »

Hello,
I am trying to compare two DEMs created through different settings. I know I can import then into ArcMap and subtract them from each other to get an elevation differnce, but could somebody guide me how to get other methods of comparison (RMSE, Standard Deviation, Histogram)?

Thank You!

3

General / Measuring Height of Grassy Vegetation

« on: July 06, 2017, 11:14:44 PM »

Hey all,

Has anyone had experience using Photoscan to measure the height of grassy vegetation? Picture of my study area is attached. If so, exactly how did you go about doing that?

Thank You!

4

General / Wetlands

« on: June 28, 2017, 09:53:03 PM »

Hello,
Does anyone have experience here building a DEM of a marsh or other sort of wetland? If so, did you experience any difficulties with developing the model?
Thank You,

5

General / Analyzing Point Clouds

« on: June 28, 2017, 09:51:10 PM »

Hey All,

What software do use to analyze point clouds. My intention is to compare and contrast two different point clouds.

Thank You