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Label identification method and device

A label recognition and labeling technology, which is applied in the field of image processing, can solve problems such as recognition errors and great influence on the accuracy of recognition results, and achieve the effect of overcoming the influence of shape distortion and accurate data information

Active Publication Date: 2016-08-10
JIANGSU MUMENG INTELLIGENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason for the misrecognition results may be due to the influence of external factors
After research, it is found that different lighting conditions, different shooting or scanning angles often have a greater impact on the accuracy of recognition results.

Method used

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  • Label identification method and device
  • Label identification method and device

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Experimental program
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Embodiment Construction

[0055] figure 1 It is a flow chart of Embodiment 1 of the label identification method of the present invention, such as figure 1 As shown, the method includes the following steps:

[0056]Step 101, acquiring an actual label image.

[0057] In this embodiment, the name of the actual label image is to distinguish it from subsequent standard label images, wherein the actual label image refers to the label image actually captured by the user using the label recognition device. The standard label image mentioned later is only an image showing the size and shape of the label, the size and shape of the cell that constitutes the smallest coding unit, and does not represent any data information, that is, the actual label image represents specific data information, such as The identified cup information.

[0058] In addition, the tags in the embodiments of the present invention are not limited to specific types. However, a general structural description of the label can be described...

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Abstract

The invention provides a label identification method and device. The method includes the following steps that: an actual label image is obtained; binarization processing is performed on the actual label image; contour region images contained in the binarized actual label image are identified; contour region images, the number of the contour vertexes of which, satisfies the requirement of a preset vertex number, are filtered out from the contour region images, and therefore, contour region images, the number of the contour vertexes of which, satisfies the requirement of the preset vertex number, are obtain to form a valid image data set; shape correction processing is performed on the contour region images in the valid image data set according to the coordinates of the vertexes of the preset contour of a standard label image; and data information corresponding to the actual label image which has been subjected to the shape correction processing is identified. Since the shape of the actual label image is corrected, shape distortion influence on the label image, caused by different shooting angles, can be eliminated, and the identified data information is more accurate and reliable.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a label recognition method and device. Background technique [0002] In recent years, various types of labels, such as two-dimensional code labels, have been widely used in people's lives, such as for identifying objects, payment and so on. [0003] Take the use of a QR code label to identify an object in a shopping mall as an example. In practical applications, a QR code label for uniquely identifying the object can be generated according to certain label generation rules, and the QR code label can be pasted on the on the surface of the object. When the user purchases the object and pays, the settlement personnel can scan the QR code label with a scanner, thereby identifying and reading the data information corresponding to the label, and completing settlement and other processing. [0004] When identifying the label, you may encounter such a problem. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/36G06K9/46
CPCG06V10/247G06V10/20G06V10/44
Inventor 蒋化冰孙斌吴礼银康力方李小山张干赵亮邹武林徐浩明廖凯齐鹏举方园李兰米万珠舒剑吴琨管伟罗璇罗承雄张海建
Owner JIANGSU MUMENG INTELLIGENT TECH
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