An object of the present invention is to record the information for measuring the rebar while reducing the load on the user. An information recording apparatus 100 includes an obtaining unit 110, a detection unit 120, the recording control unit 130. Acquisition unit 110 acquires a plurality of images rebar group taken while moving the imaging area so as to intersect with Haisuji been rebar groups capturing order. Detector 120 detects a tracking target from the first peripheral portion reinforcing bar group a peripheral portion in the image of the image acquisition unit 110 has acquired a peripheral portion of the moving direction is a direction of movement. Recording control unit 130, when the detection unit 120 detects a tracking target from the first peripheral portion, in the newly captured rebar group image after detection of the detected image or tracked is an image tracking target is detected substitute information generated on the basis of a certain captured image or detected image or photographic image, the recording unit 140 in association with identification information identifying the rebar that exist within a specified range from the target object to a reinforcing bar which constitutes the reinforcing bar group Record. .FIELD 1