A sensing system provided with a target detecting unit which applies predetermined processing to data obtained by a detecting device and thereby detects a target object, the sensing system including an augmented-reality-image creating unit which creates an image corresponding to a candidate in a plurality of candidates that appear in the processed data to which the predetermined processing has been applied, a predetermined parameter of the candidate being equal to or greater than a detection threshold, and creates a candidate image corresponding to a candidate in the plurality of candidates, the predetermined parameter of the candidate for the candidate image is less than the detection threshold and equal to or greater than a detection candidate threshold, and a display device that displays the image and the candidate image.