1. A video surveillance system, comprising: a non-volatile memory configured to store a video, an object ID code, and a location of an object of interest corresponding to the object ID code; and at least one processor configured to process video stored in the non-volatile memory, the at least one processor comprising a video receiving unit configured to receive the video, the object ID code, and the location of the object of interest corresponding to the object ID code from at least one IP camera, and to store the video, the object ID code, and the location of the object of interest corresponding to the object ID code from the at least one IP camera in the non-volatile memory, a video request receiving unit configured to receive, from a user terminal, a video request of the object of interest corresponding to the object ID code, a camera searching unit configured to search for an IP camera that is capturing the video which is requested by the user terminal, a video processing unit configured to process uninteresting objects, excluding the object of interest, in the video which is captured by the searched IP camera so as to make the uninteresting objects indistinguishable, and a video providing unit configured to provide the video, which is processed by the video processing unit, to the user terminal which requests the video, wherein the object ID code and the location of the object of interest corresponding to the object ID code are transmitted by an object ID code transmitter that is installed in the object of interest.