A multimedia object retrieval and annotation system integrates an annotation process with object retrieval and relevance feedback processes. The human facial identification method includes: driving a group of infrared lamps by a high frequency pulse signal to generate infrared backlight, collecting identified human facial features in irradiation of the infrared backlight, comparing the collected identified human facial features with a human facial template to complete the human facial identification. The web print server is operable to download a print job from the cloud storage server to the web print server. When a chirograph is received, the chirograph is provided to the primary recognizer whereby a code point corresponding thereto is received. A limit value EVM for an error in the transmission signal is matched to transmission conditions for the transmission signal, according to demand, in such a way that a maximum signal to interface ration is achieved at a receiver. The cuts may be made, for example, by punching elongated slots along the bend line in a blank being formed into the bracket.