Tomnod Team Thoughts

Using algorithms and Tomnod to create the most complete and accurate populations maps

Numerous parts of the world are still affected by infectious but curable diseases, and nongovernmental organizations (NGOs) are fighting it by large-scale vaccination campaigns. To efficiently plan these campaigns over large areas (often spanning 200,000 km2; that’s half the size of California) and maximize the success of vaccine distribution, accurate...
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Simplifying PostgreSQL queries in Node.js using promises

Node.js is a fast-growing server framework that is based in Javascript. Its most exciting new capabilities come from the asynchronous nature of Node.js’ Javascript base, which results in drastically improved server performance due to handling individual requests in a non-blocking fashion. For example, while one request is waiting on a...
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Protecting Cocos Island marine life

DigitalGlobe’s crowdsourcing platform Tomnod has formed a partnership with ocean and marine conservation non-profit Turtle Island Restoration Network to create the first crowdsourced digital patrol of the Cocos Island Marine Protected Area in order to defend one of the Pacific Ocean’s most vibrant marine life habitats. Located 340 miles off...
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Labeling at scale with smart feature prioritization

Our latest effort to map remote population centers in various parts of Asia was of an unprecedented scale. More than 14,000 of our own Tomnod crowd took up the challenge to label as containing buildings or not close to 1,000,000 polygons provided by DigitalGlobe’s automatic image mining algorithm. A fine...
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DigitalGlobe satellites IKONOS and QuickBird-2 retire after years of service

We recently celebrated the “retirement” of two DigitalGlobe satellites, IKONOS and QuickBird-2. They had impressive runs and made thousands of orbits around the Earth collecting imagery of some fascinating events, both natural and man-made. IKONOS IKONOS was born September 24, 1999 in Longmont, Colorado, weighing 817 kilograms and 1.83 meters...
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