Transmitting and receiving method of remote surveillant images through object recognition and system at the same of

The present invention, image data transfer relates to a video data transmission method and system that can dramatically reduce the amount of data that is sent. To this end, the present invention provides for the step of extracting and separating the image data that is input to the object data and the background data, and a step and the encoded data which are encoded in different way with respect to the object data and the background data extracting the separated It provides a video data transmission method and system, each of which includes the step of transmitting to a receiving side the other cycle.