pixel brightness rankings

Lang and Schölkopf blew me away today by suggesting that we combine heterogenous images not by co-adding them but rather by inferring a consistent brightness ranking for the pixels. There are lots of real-world issues (think registration and pixellization and bad data), but there are also lots of reasons that a brightness ranking analysis might be far more robust than a co-adding procedure for finding very faint structure. We set the scope of a fast project to kick this off and Lang started on the dirty work, which involves scraping the web for images (recall our Comet Holmes project?) and running everything through Astrometry.net.

No comments:

Post a Comment