PICNIC07: Future Technology Trends, Alexander Straub
Pixsta: interesting way of looking at images without looking at images themselves: looking at similarities in and closeness between images, and building web applications around these.
Shows demo of shopping site showing handbags similar to the bag you're currently looking at - in an interestingly messy display. Quite pretty actually, a nice way to browse items. A very quick way for human beings to browser 4-500 products in a short time, using the brain for what it's best at - recognising images, finding similarities and matching patterns. Simple but neat. Cool for something like Etsy.
No tagging behind the shopping demo: it's all done via the image data itself.