Four-dimensional code, image identification system based on four-dimensional code, image identification method, four-dimensional code search system, and four-dimensional code search method

摘要

The invention discloses a pattern recognition system, which comprises a recognition diagram and recognition diagram data corresponding to the recognition diagram, wherein the recognition diagram is divided into three formats: an integral format recognition diagram, a semi-format recognition diagram and a pure image format recognition diagram; the integral format recognition diagram comprises a true color image area, a plurality of correction points, a data image and an ID number, wherein the correction points are arranged on four corners of the image area, the data image is arranged above the image area, and the ID number is arranged below the image area; the semi-format recognition diagram comprises the image area and a plurality of correction points, wherein the correction points are independently arranged on four corners of the image area; and the pure image format recognition diagram only comprises the image area. The pixels of a true color image are compressed and subjected to fault-tolerance processing so as to be converted into data, and the data is converted into the color image in a pixel code way, and the color image is published to an electronic document or a printed manuscript and is recognized into data after the color image is shot through a mobile phone and a computer to retrieve a network database so as to obtain corresponding information.