1. An apparatus comprising: an image sensor configured to capture image data, wherein the image sensor captures the image data while the apparatus is worn or attached to a human; an analyzer configured to: analyze the captured image data; determine plural-bit identifiers for one or more objects represented in the captured image data; and correct for distortion in the image data; an output configured to communicate a determined plural-bit identifier to a remotely located network resource; and an input configured to receive advertising information associated with the determined plural-bit identifier.