Abstract: A method of transferring video data comprises obtaining a stream of video frames from an video capture device and identifying at least one characteristic in at least one frame of the stream of video frames. Lookup data is generated which associates the at least one characteristic with its at least one identified video frame. At least one video frame in the stream of video frames having a given characteristic is determined and notification or at least one of the determined video frames is transmitted to a client. A video transfer system, video processing device and method of image identification are also described.