INFORMATION PROCESSING APPARATUS, REBAR COUNTING APPARATUS, AND METHOD

An apparatus includes a memory and a processor connected to the memory, wherein the processor acquires a plurality of images of an installed rebar group that have been captured while an image capturing region is being moved in a direction intersecting the rebar group, detects a tracking target from a first edge portion, and correlates, when the processor has detected the tracking target from the first edge portion, either of a detection image that is an image of the detected tracking target or a captured image captured after the detection or alternative information generated on the basis of the detection image or the captured image with identification information for identifying a rebar belonging to the rebar group and located within a predetermined range from the tracking target, and records the image, or alternative information correlated with the identification information in a recording apparatus.