Recognition method of two-dimensional barcode [Buke printing]

Recognition method of two-dimensional barcode [Buke printing]

In terms of recognizing two-dimensional barcodes, two-dimensional barcode scanners are basically the same as one-dimensional barcode scanners. However, when scanning one-dimensional barcodes, a linear CD scanner is used, while when scanning two-dimensional barcodes, a linear CD scanner and a surface CCD scanner can be used

There are two methods for recognizing barcodes: ① decoding by scanning layer by layer through a line scanner; ② Decoding two-dimensional barcodes through photographic image processing. For stacked two-dimensional barcodes, the above two methods can be used for recognition, but for the vast majority of matrix two-dimensional barcodes, photographic and image processing methods must be used for recognition (such as using a face type CCD scanner for recognition)

Recognition method of two-dimensional barcode [Buke printing]