Video search device and network surveillance camera system including same

A video receiving/search device configured to photograph a plurality of surveillance areas to acquire video information for the respective surveillance areas, connected via a network to a plurality of cameras configured to transmit the acquired video information of the respective surveillance areas to each channel to receive the video information from the cameras, and configured to search for the transmitted multi-channel video information, the device comprising:

• a metadata receiver receiving metadata generated by the plurality of cameras for each of the channels;
• a still image receiver receiving a still image generated by the plurality of cameras for each of the channels;
• a thumbnail image generator generating a thumbnail image representing an event of the metadata from the received still image;
• a metadata tag generator generating a metadata tag implemented with text that expresses an event of the metadata from the received metadata;
• a video search viewer displaying the generated thumbnail image and metadata tag on a screen and providing a search function for the transmitted multi-channel video information;
• wherein the plurality of thumbnail images corresponding to events generated for each channel are listed and displayed in floating form on the screen provided by the video search viewer, and
• text-type metadata tags indicative of characteristics of an event corresponding to the respective thumbnail images is systematically displayed together around the respective thumbnail images;
• and
• wherein a first thumbnail image corresponding to video data transmitted from a channel with a higher frequency of event occurrence among the respective thumbnail images is displayed further forward based on the depth direction of the screen.