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Logistics composite code identification method based on multitask depth learning

A technology of deep learning and identification methods, which is applied in the direction of collaborative operation devices, biological neural network models, and recording carriers used by machines, and can solve problems that do not involve the positioning and identification of logistics composite codes

Active Publication Date: 2018-08-17
ZHEJIANG HANQIANG AUTOMATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, it does not involve the positioning and identification of logistics composite codes

Method used

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  • Logistics composite code identification method based on multitask depth learning
  • Logistics composite code identification method based on multitask depth learning
  • Logistics composite code identification method based on multitask depth learning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0088] refer to Figure 1 to Figure 10 , a logistics composite code recognition system based on multi-task deep learning, such as Figure 10 As shown, the main process is as follows: when the goods to be sorted on the assembly line move to a certain station of the assembly line, the system automatically triggers multiple cameras to take images of the goods from various directions; then, based on the Faster R-CNN goods composite code label detection Positioning to obtain the composite code label image on the cargo image; then, perform affine transformation on the minimum area rectangle of the composite label image; further, segment the image of the composite label after the affine transformation, and segment the label image of the inkjet characters And a one-dimensional barcode image or a two-dimensional barcode image; then, the label image of the obtained inkjet character is used for character recognition based on Faster R-CNN, and the character sequence in the label image of t...

Embodiment approach 2

[0137] The above is similar to Embodiment 1, except that there is no special requirement for the placement of goods on the assembly line.

[0138] Since the face of the composite code label pasted on the goods is not required to face up in this embodiment, it is necessary to adopt a method for obtaining the image of the composite code label in all directions, such as Figure 9 Shown; For express logistics, the goods are on the sorting line, the size of the goods and the position angle of the composite code label pasted on the goods are all uncertain; in order to obtain the image of the composite code label from various angles, in the present invention Five cameras are installed above the assembly line, left, right, front, back, and back, so that images of composite code labels in all directions of the goods can be captured; in addition, in order to ensure accurate reading of the composite code labels pasted on the goods, the present invention stipulates that Paste the composit...

Embodiment approach 3

[0140] The above is similar to Embodiment 1, the difference is the positioning and division of the composite code label. In this embodiment, the Faster R-CNN network is used to locate and segment the label part of the coded characters in the composite code, and then according to the position information of the label part of the coded characters and the label part of the coded characters and the one-dimensional barcode or The positional relationship information of the label portion of the two-dimensional barcode is further positioned to segment the label portion of the one-dimensional barcode or the two-dimensional barcode in the composite code label.

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Abstract

A logistics composite code identification method based on multitask depth learning comprises a method for acquiring logistics composite code images in all directions, a label design scheme convenientfor visually detecting and positioning a spray code character, a design scheme suitable for the character positioning of the label of the spray code character, a segmented character size, a font and an interval among the characters, a composite code design scheme suitable for visual identification, a Faster R-CNN network used for detecting and positioning a composite code, an algorithm module usedfor composite code image rectification and the forward / backward detection of the characters, a multi-task deep convolutional neural network used for deep learning and training identification, a convolutional neural network based on the character identification on the label of the spray code character of deep learning, the algorithm module used for identifying a one-dimensional barcode in the composite code, the algorithm module used for identifying the two-dimensional barcode in the composite code, and a sorting control module used for controlling sorting action according to identified composite code information. In the invention, a problem that a lot of randomly-placed, irregular-shaped, flexible packaging cargos can not be quickly and automatically sorted is effectively solved.

Description

technical field [0001] The invention relates to the application of artificial intelligence, digital image processing, convolutional neural network and computer vision in the identification and sorting of logistics composite code labels, and belongs to the field of intelligent logistics. Background technique [0002] In the current logistics system, the code reading equipment of the system is mainly for any kind of information identification in spray code characters, one-dimensional code, two-dimensional code, and RFID. The way to obtain product and logistics carrier information is to obtain them separately, and then manually assemble the product information on the computer or PAD and bind it with the information of the logistics carrier, so as to ensure the effective management of the goods in the process of transportation and storage. [0003] Because the cost is very low, inkjet characters, one-dimensional barcodes and two-dimensional barcodes have been widely used in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06G06K17/00G06N3/04B07C3/18
CPCG06K17/0022G06K19/06028G06K19/06037B07C3/18G06N3/045
Inventor 盛力峰关亮林宏鋆盛雷雷王路贾宝荣王显杰聂学雯王权
Owner ZHEJIANG HANQIANG AUTOMATION EQUIP
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