SEARCH DEVICE, SEARCH METHOD, AND SEARCH PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a search device capable of decreasing the number of objects hitting in a search even if many objects similar in external information obtained by witness information are present.SOLUTION: A search device comprises: a tracking unit acquiring positions at a plurality of time points of each of a plurality of moving bodies included in a plurality of images picked up by an imaging device picking up a series of a plurality of images at the plurality of time points at a predetermined location as moving histories; a feature extraction unit extracting physical features of each of the plurality of moving bodies; a witness route acquisition unit identifying moving bodies from the plurality of moving bodies by comparing witnessed physical features of a search target with the physical features of the plurality of moving bodies, and acquiring a witness moving history; a search condition generation unit setting search conditions that the search target is present in a predetermined time zone and in a predetermined region specified by the witness moving history; a candidate acquisition unit acquiring moving bodies satisfying the search conditions as search target candidates; and an output unit outputting the search target candidates.