Recent content by AMann

Thanks for the input. You are right, a multispectral agricultural camera on any drone would have worked, but I’m just a poor student with a Mavic Pro 2. Also, as I needed to match the 1 meter ground resolution of the pre-fire NAIP imagery, even the M2P’s resolution was way too fine as I had to...

Ardupilot is open source and there are a lot of commercially available flight controllers that are compatible with it. Hope you have a recovery chute on the thing- fly safe!

Hi, and thanks for the good questions! I chose using my Mavic 2 Pro because that’s what I have…. In terms of image resolution, one can use just about any type of drone for this project since the ground resolution had to be limited to 1 meter in order to properly compare the 2025 results to those...

I’ve done it for quite accurate 3D modeling for a historic recordation project, which isn’t really that different from mapping. It was for a CalTrans job at a historic bridge and the shadows hid the internal structure underneath the bridge deck. HDR images allowed us to expose all of it...

If I don’t have corner coordinates and it is just an illustration, I use MS Paint - seriously! If I do have coordinates, I use either QGIS or ArcGIS. And yeah, for the title of the drawing and in the file name for it, I always use the word “approximate”.

You could use HDR (high Dynamic Range) processing. It’ll take longer, but do at least two RAW mode (.dng, not .jpg) images (3 would be best) while parked at a dead stop above each photo point. Make one shot with a shorter exposure set for the sunlit areas and a longer exposure one for the shaded...

The USGS Earth Explorer site has free 1-meter resolution geotiffs that are flown every other year. OP should look into those if all his friend needs is a map of the entire 4sq miles. They are quite good and can be paired with LIDAR data from the same site to make 3D maps.

I just finished this project for my GIS class and wanted to share the results (see attached report). If anyone is interested in doing budget vegetation mapping for habitat analysis, recovery, wetlands delineation, etc., this may be a good low-cost approach for doing it. Note: The Python tool I...

I’m going to get yelled at here for suggesting this on just the low technical quality of the image, but I spliced the entire set of my Dad’s 8mm and his Super 8mm films in chronological order on 2 separate reels, and set up the films to project in a darkened room on a real old style glass bead...

Hi Tony, good job on the 107! I bet it wasn’t anything like what you accomplished with getting your surveyors license though, I looked into what those would take once and realized that it would be a lot of work and time, so congratulations on that as well. Say- I PM’d you on here with some...

Hey, thanks for the information! As I mentioned, I am studying about GIS at school, which uses ESRI’s ArcGIS that can do mapping and NDVI image processing with it. It’s a very pricey program, but we get it with a student license. I like that DJI has a multispectral system, I’ll have to look...

I’m interested in this as well, particularly in multispectral vegetation surveys. Currently using a Mavic 2 Pro that was modified to do multispectral photography, but am interested in the Mavic 3 Multispectral RTK model. Does anyone here use this? If so, what subscription costs are required to...

Haven’t read John’s article yet, just the abstract, and looks like a really good resource. One thing I would consider is using a UAV fixed wing vtol type of aircraft to do this. You could have it follow contours on the mountainsides with a side facing camera or lidar and be able to have it scan...

This may be of some interest- satellite remote sensing for methane: https://data.carbonmapper.org/#6.59/41.94/-82.423

To be honest, it’s going to be hard to do this legally as you do not have any expectation of privacy outside in your yard. If the cameras are on their own property, they can deploy as many as they wish. I’m a little surprised they would have 100s of trail cameras though, what is this place and...