1. An informational retrieval system comprising: a terminal device connection configured to receive image data from a terminal device and representative of a scene; and an identification server configured to: obtain the image data via the terminal device connection, derive at least one descriptor from the image data, use the at least one descriptor to recognize at least one symbol represented in the image data as a target object, retrieve target object information corresponding to the target based on the at least one descriptor, and enable a second device to take action based on the target object information.