Method for positioning and extracting characters in customs declaration sheet image

A technology in images and customs declarations, applied in character and pattern recognition, instruments, biological neural network models, etc., can solve problems such as high error rate and heavy workload

Pending Publication Date: 2019-09-06
SHANGHAI MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing customs declaration forms are usually obtained by manually sorting out various data and information of the goods one by one by the personnel inside the enterprise. During this period, various data need to be checked, the workload is heavy, and the error rate is high.

Method used

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  • Method for positioning and extracting characters in customs declaration sheet image
  • Method for positioning and extracting characters in customs declaration sheet image
  • Method for positioning and extracting characters in customs declaration sheet image

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with accompanying drawing and embodiment:

[0019] figure 1 It is a flow chart of the method for character positioning and extraction in the customs declaration image of the present invention, please refer to figure 1 , the invention discloses a method for locating and extracting characters in an image of a customs declaration form, wherein image binarization is performed on the picture to be recognized; straight lines are obtained using Hough transform, and the image is divided into blocks; blocks to be recognized are projected Calculate and obtain the text information in the block image; import the text information into the recognition network for recognition; export the recognition result.

[0020] Specifically, after the present invention divides the image into blocks, the customs declaration information with distinguishable features such as the waybill number, sender, recipient, commodity name, a...

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Abstract

The invention discloses a method for positioning and extracting characters in a declaration sheet image, which comprises the following steps of carrying out image binaryzation on a to-be-identified image; obtaining straight lines through Hough transform, and partitioning the image; carrying out projection calculation on the blocks needing to be identified to obtain text information in the block images; importing the text information into a recognition network for recognition; deriving identification results. According to the method, after the image is processed, the straight line is searched through Hough transform, so that the required area block can be extracted according to setting. A VGG network is utilized to train the recognition of Chinese characters and English, a recognition result is input into an excel table, and an editable file is generated.

Description

technical field [0001] The invention relates to a character extraction method, in particular to a method for locating and extracting characters in a customs declaration image. Background technique [0002] Customs declaration refers to the process in which consignees and consignors of import and export goods, persons in charge of inbound and outbound means of transport, owners of inbound and outbound goods, or their agents handle the entry and exit procedures of goods, articles or means of transport and related customs affairs with the customs, including reporting to the customs Declare, fill in the customs declaration form and submit the documents for inspection, and accept the supervision and inspection of the customs. [0003] However, the existing customs declaration forms are usually obtained by manually sorting out various data and information of the goods one by one by the personnel inside the enterprise. During this period, various data need to be checked, with a hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/32G06K9/34G06K9/38G06K9/40G06N3/04
CPCG06V30/412G06V10/243G06V30/158G06V30/153G06V10/28G06V10/30G06N3/045
Inventor 刘晋杨一何田小琥栾翠菊
Owner SHANGHAI MARITIME UNIVERSITY
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