Software to automatically tag images

bignickel writes: Researchers at Penn State have applied for a patent on software that automatically recognizes objects in photos and tags them accordingly. The "Automatic Linguistic Indexing of Pictures Real-Time" software (catchy name) trained a database using tens of thousands of images, and new images have 15 tags suggested based on comparisons with objects or concepts in the database. Not sure how you identify a "concept", and they're only talking about having one correct tag in the top 15, but still cool.