Colorful lattice point code picture and three-dimensional bar code coding method thereof

Abstract

The invention discloses a colorful lattice point code picture and a three-dimensional bar code coding method thereof. Two kinds of unit code pictures with different sizes and shapes, namely color lattices and color points, are organically combined, and a corresponding coding method is combined to achieve the functions of colorful lattice data coding and colorful point data coding, data capacity is remarkably increased, and reliability and usability are improved. Besides data correction, data check and geometrical technologies of the existing code technology, the method further adopts brightness correction, noise correction and color correction and the like in CGP code, and is capable of effectively correcting brightness change and heterogeneity, color change and heterogeneity, code picture noise and the like. A geometrical correction method with higher density is adopted to improve anti-distortion capability. The unit code pictures of the existing two-dimensional and three-dimensional bar codes are most of one kind. The CGP code adopts two kinds of unit code pictures which are remarkably different in shape and size, and recognition in decoding process is convenient.

Description

technical field [0001] The invention relates to the technical field of barcodes, in particular to a color grid point code map and a three-dimensional barcode encoding method thereof. Background technique [0002] Bar code technology is an emerging technology that integrates coding, printing, collection, decoding and processing, developed on the basis of information coding, data encryption and image processing. Barcode technology has the advantages of speed, accuracy, low cost, and high reliability. It has been widely used in many fields such as commodity sales, library information, warehouse management, medical and health care, postal logistics, transportation, and production management. Bar code technology has greatly improved the speed of data collection and information processing, significantly improved work efficiency, and made important contributions to the scientific, standardized and modernized management. At present, bar code technology has been widely used in the w...

AI Technical Summary

Problems solved by technology

One-dimensional barcodes have the advantages of convenient printing, simple recognition and good reliability, but there are also certain shortcomings: small information capacity, data capacity of about 10 numbers or letters; no vertical direction information, low data density; simple numbers or Alphabets mark the goods, and cannot describe the goods in detail, and need to rely on pre-established databases or connection networks; it is difficult to represent information such as Chinese characters or even images; check characters can be used for error checking, but there is no error correction capability

[0010] Compared with two-dimensional barcodes, three-dimensional barcodes increase the data capacity through multiple colors, but there are still some shortcomings: it is difficult to locate and identify the unit code map; the anti-distortion ability of the code map is relatively low; relatively high requirements

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