Let’s clear the air: DigitalGlobe Atmospheric Compensation (AComp), part 2

Since publishing my first blog post on DigitalGlobe Atmospheric Compensation (or AComp), I’ve received a number of questions about the details of our proprietary technique. The improvement DigitalGlobe AComp makes in imagery is clear to see. What’s less obvious, however, is how we achieve a level of improvement that other…

read more

Uncovering hidden intelligence with multispectral imagery

Powerful cameras onboard DigitalGlobe satellites are capable of detecting a much wider spectrum of light than our human eyes can see. The images they produce make it possible for analysts to see a hidden world in which answers to key intelligence questions (KIQ’s) become more readily apparent. Background DigitalGlobe’s WorldView-2…

read more

Named entity recognition for Twitter

In a previous HumanGeo blog post, Denny Decastro and Kyle von Bredow described how to train a classifier to isolate mentions of specific kinds of people, places and things in free-text documents, a task known as Named Entity Recognition (NER). In general, tools such as Stanford CoreNLP can do a…

read more