Multi-spectrum two-dimensional code recognition device and method

Abstract

The invention discloses a multi-spectrum two-dimensional code recognition device and method. The device comprises two lenses, two image sensor modules, an image processing module, and a two-dimensional code analysis and output module. The lenses are connected with the image processing module through the image sensor module; the image processing module is connected with the two-dimensional code analysis and output module; and a power supply module is respectively connected with the above modules for power supply. With the two lenses, two two-dimensional code pictures under different spectral ranges are collected simultaneously; image processing is performed on the two collected two-dimensional code pictures, wherein the image processing includes image preprocessing, image positioning processing, image correction processing, and image fusion processing; and the processed two-dimensional code picture is analyzed and information is outputted. The image processing and two-dimensional code identification and outputting can be completed at a PC machine or in an embedded system. Therefore, comprehensive and clear image information can be obtained; the reliability of the image is enhanced;and the recognition efficiency of the two-dimensional code is improved.

Description

technical field [0001] The invention belongs to the technical field of image recognition, in particular to a multispectral two-dimensional code recognition device and method. Background technique [0002] Two-dimensional code, also known as two-dimensional barcode, is a readable barcode extended on the basis of one-dimensional barcode. Commonly used two-dimensional code systems include Data Matrix, Maxi Code, Aztec, QR Code, etc. Among them, the QR Code (QuickResponse Code) matrix code is the most popular code system at present. The QR code is square, black and white, and the square pattern with the word "回" printed on the three corners is its positioning code. Three positioning codes can be used. Locate a QR code. Two-dimensional codes are favored by all walks of life for their advantages of large information capacity, high reliability, expressible information form, strong confidentiality and anti-counterfeiting. For example, in assembly line industrial production, in ord...

AI Technical Summary

Problems solved by technology

Therefore, there are single-camera barcode recognition devices in other spectral bands on the market, such as infrared barcode recognition devices, which have the advantages of strong anti-interference ability and can work around the clock, but their imaging resolution is low, and the probability of error information is relatively high.

Although a few other cameras have the function of capturing images reflected from different spectra and realize the complementary advantages of image information in different spectral segments, they still need to be improved in image processing, QR code analysis and recognition, and the cost is not considerable.

Images