An image monitoring system including a surveillance camera is provided. The surveillance camera includes: an image analyzer configured to analyze an input image; a sound source analyzer configured to analyze a sound source in the image or a sound source that is input separately; and a determiner configured to determine whether an abnormal image and an abnormal sound source exist, and when the abnormal image and the abnormal sound source are obtained, according to a result of the image analysis and the sound source analysis, to generate metadata and alarm information based on a result of the determination, wherein the abnormal image and the abnormal sound source are predefined.