Fly a more even grid (I’m flying my Air 2S manually because there’s no automated flight planning tools yet)
Point the camera at -80 or -85 rather than -90 degrees
Fly multiple grids, offset at 20 degrees (I flew one grid)
Adjust the altitude of the drone as I go up/down over areas (the terrain is quite mountainous, I thought I needed to keep a consistent height above sea level, but consistent height above ground might be better?)
But other than improving the flight characteristics, what settings should I mess with to try and get cleaner looking trees in the orthomap?
Also, any tips for mapping hundreds of acres of mountainous forests?
If you fly at a constant altitude above sea level but the height above ground level varies significantly, you’ll end up with areas of smaller GSD but insufficient overlap, and other areas with larger GSD but more overlap.
Trees will look very swirly when it is windy, as they move between images, especially around the outer edges of the foliage.
Yeah, definitely something I’ll keep in mind for next time. In this case, the day was pretty still – not much wind at all. (There was probably some, but I don’t recall having to pay attention to it as my flying position was pretty exposed.)
Will do! I’m pushing into the upper limits of my 40GB of RAM on my box, but maybe I can split and merge (though, when I tried that last time I ended up with a point cloud that had three distinct layers at differing altitudes).