As an embodiment of the present invention, there is provided an information terminal comprising: an input/output part for performing input and output with respect to an image storage device for storing image information captured by an imaging terminal; a storage part for associating and storing image identification information for identifying the image information, summary image information that includes less information than the image information, and device identification information for identifying the image storage device; and a display part; wherein the device identification information stored in the storage part is displayed by the display part, the summary image information that is associated with device identification information selected from the device identification information displayed by the display part is displayed by the display part, and the image information associated with the summary image information selected from the summary image information displayed by the display part is displayed by the display part.