Image recognition apparatus

摘要

In an image recognition apparatus for identifying an input image such as a character, any other graphic pattern or the like by comparing the input image with a plurality of reference image, an optical image recognition means simultaneously performs image information detection processing of a plurality of optical pattern images of substantially an identical shape obtained by multiplying the input image, thereby detecting a plurality of image information data corresponding to the plurality of optical pattern images and hence identifies the input image. When the input image cannot be identified by the optical image recognition means, an electronic image recognition means performs digital correlation calculations for limited ones of the reference images according to the above image information data. Therefore, image recognition can be performed by an inexpensive apparatus at high speed, and a high throughput can be obtained. In addition, a high recognition rate can be obtained.