Eye-based biometric photo watermarking system

Canon has just filed for a patent on Eye-biometric digital photo watermarking. This is pretty cool, and makes great sense, even just for knowing who took the photo within your own family. Digital watermarking is done to hide a piece of info in a photo, so that you can prove ownership in the future, at least thats the primary reason. But in a family where a few people take photos. You register your eyeball with the camera, and then when you take a photo, it gets tagged with your name as the credit. My wife an I look at a lot of our older photos and wonder which one of us took it. Not that it is all that important, but nice to know. For professionals, this will eliminate a significant step in protecting their intellectual property. For consumers, it will allow for vanity credit, as well as protection against illegal use from sites like Flickr. But in the end, the legal protection will be about as effective as DRM and DVD encryption, which is to say, not effective. Via Engadget