Digital Geography

Geotagging Basics with ExifTool

  Why Geotagging? In a recent post, I discussed the new drone that I got for the holidays and a bit about how I was using it for developing map products.  I do this using structure from motion algorithms and when working with a lot of images it is a great help if there is a good initial estimate of the image location.  This is where geotagging comes in. If you have a smartphone, then you are familiar with geotagging.  Most iPhone and Android devices tag their images when they are collected.  That is great if you are uploading to Facebook or Pinterest,…

A Drone for the Holidays

So, by now some of you have opened a holiday gift and it turned out to be a drone.  I was fortunate enough this year to get a 3DR IRIS+ in my stocking.  After a few flights I wanted to put together a quick note comparing this with another popular consumer drone, the DJI Phantom 2 Vision+ (P2V+).  I have a P2V+ that I use at work and put quite a bit of thought into what I would get for personal use.  Hopefully this will be of use to readers who may be considering the purchase of a drone this year.  Allow me to…