A Recognition Method Based on One-Dimensional Barcode Image

Abstract

The invention discloses a recognition method based on a one-dimensional bar code image. The recognition method includes the following steps that: S1, a user photographs the one-dimensional bar code image through a mobile electronic device; S2, angle correction is performed on the photographed one-dimensional bar code image; S3, arbitrary two to three rows of the one-dimensional bar code image are chosen to be subjected to vertical projection, such that a one-dimensional bar code projection curve can be obtained; S4, the positions of initial / terminal extreme value points can be obtained based on the one-dimensional bar code projection curve; S5, the positions of 59 extreme value points in the barcode projection curve are further located; S6, a bar code edge pixel value region can be obtained through using a bar code edge pixel region algorithm, such that a bar code black / white strip width vector set can be obtained; S7, based on the bar code black / white strip width vector set, decoding can be executed through using global and local Euclidean distance algorithms; and S8, decoded bar code characters are tested. The recognition method of the invention has the advantage of flexibility, real-time property, convenience, stability, high accuracy in recognition and the like.

Description

technical field [0001] The invention relates to the field of computer vision, in particular to a recognition method based on a one-dimensional barcode image. Background technique [0002] With the rapid development of the economy and the advancement of science and technology, people's consumption concepts are gradually improving. If you can keep abreast of the authenticity, sales price or information of related products in various supermarkets when consuming, it will bring great benefits to buyers. convenience. However, at present, the identification of barcodes is mainly carried out by barcode laser scanning equipment, and the laser code readers commonly used in the market are expensive and inconvenient to carry, so we hope that by using the camera function of our mobile phones and other electronic devices, Take photos of the barcodes on the products; then, use the mobile phone network or the free wireless network to keep abreast of the relevant information of the required...

AI Technical Summary

Problems solved by technology

However, at present, the identification of barcodes is mainly carried out by barcode laser scanning equipment, and the laser code readers commonly used in the market are expensive and inconvenient to carry, so we hope that by using the camera function of our mobile phones and other electronic devices, Take photos of the barcodes on the products; then, use the mobile phone network or the free wireless network to keep abreast of the relevant information of the required products

Images