18th February 2009 - Link Blog
Found in space. The Astrometry bot on Flickr (which detects which part of the night sky is contained within your photo and adds notes to some of the more interesting stars) is the most delightful use of the Flickr API I’ve ever seen. This interview provides some background, including a link to a paper on the “scale and rotation invariant hashing algorithm” that is used to build the index.
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