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

摘要

The present invention relates to a technique for effectively tracking a moving object by generally using a PTZ camera in a CCTV control system. More specifically, the present invention relates to a technique capable of controlling object tracking of a PTZ camera with a small calculation by extracting a region having a meaningful motion in an image, that is, a moving object region, and tracking the moving object region by using a syntax (for example, a motion vector and a coding type) obtained by parsing compressed image data, rather than controlling tracking of the PTZ camera by identifying an object through complex image processing as in the related art for a compressed image. According to the present invention, the object tracking control of the PTZ camera can be performed by identifying the moving object region from the CCTV compressed image without complicated processing such as decoding, down-scale resizing, acquiring a differential image, and analyzing an image. In particular, it is possible to control the object tracking of the PTZ camera even with a calculation amount of about 1/20 compared to the related art, and thus, the number of PTZ camera accommodation channels of the CCTV control system can be significantly increased without large-scale cost investment.