PTZ method of controlling object tracking of PTZ camera by use of syntax data in compressed video

摘要

The present invention generally relates to a technique for effectively tracking a moving object using a PTZ camera in a CCTV control system. More specifically, the present invention provides a syntax (eg, motion vector, coding type) obtained by parsing compressed image data instead of tracking and controlling an PTZ camera by identifying an object through complex image processing as in the prior art. The present invention relates to a technology capable of controlling object tracking of a PTZ camera by extracting an area where a significant motion in an image exists, that is, a moving object area and following the moving object area. According to the present invention, an object tracking control of a PTZ camera can be performed by identifying a moving object region from a CCTV compressed image without performing complicated processing such as decoding, downscale resizing, difference image acquisition, image analysis, and the like. In particular, the object tracking control of the PTZ camera is possible even with a calculation amount of about 1/20 compared with the prior art, and thus, there is an advantage in that the number of PTZ camera accommodation channels of the CCTV control system can be greatly increased without large-scale investment.