1. A video surveillance system comprising: a plurality of cameras that capture images; a monitoring apparatus that displays the images captured by the cameras; an information generating apparatus that generates information for searching the images captured by the cameras; and a search apparatus that searches the images captured by the cameras, wherein the information generating apparatus acquires the images captured by the cameras, generates retrieval data from the acquired images, and transmits the generated retrieval data to the search apparatus, and wherein the search apparatus stores the retrieval data received from the information generating apparatus in a storage device, and transmits the stored retrieval data to the monitoring apparatus.