The present disclosure relates to image capture and identification of captured imagery. One claim recites an apparatus comprising: an image sensor configured for capturing image data, said apparatus to be worn or attached on a human so that said image sensor captures image data while said apparatus is worn or attached on the human; an analyzer configured for analyzing captured image data and to determine plural-bit identifiers for one or more objects represented in the captured image data, said analyzer is also configured for correcting for distortion in the image data; an output for communicating a determined plural-bit identifier to a remotely located network resource; and an input for receiving advertizing information associated with the determined plural-bit identifier. Of course, other claims are provided too.