1. A method for providing information on a product, the method comprising the steps of: (a) determining a posture of a person included in image data; (b) determining candidate regions having probabilities of including images of products by referring to the posture of the person said probabilities being over a predetermined threshold value and then displaying the candidate regions on a terminal; and (c) upon receiving selection of one of the candidate regions, requesting to a server product information related to a product included in the selected candidate region.