Method of video monitor object automatic detection and system thereof

The invention discloses a method of video monitor object automatic detection and a system thereof. Combined with object motion information and form information in a video, based on a Gentle AdaBoost algorithm and an expanded Harr characteristic, a classifier is trained and object detection in the video is carried out automatically, a return value is determined after employing a training sample window to pass through each layer of a cascade classifier, when the return value is a positive number, an object is searched in real time in video monitoring and is highlighted, and a problem of low inquire efficiency of mass video data in the prior art is solved. The method and the system have the characteristics of simple design, fast detection speed, high precision and strong robustness, efficiency of extracting a characteristic in the video is raised, and the method and the system can be widely used for pedestrian detection and tracking in the video retrieval field.