Image information extraction method and device

An image information and extraction method technology, applied in the computer field, can solve the problems of incomplete text detection in the gland area, low text recognition accuracy, deviation from real bills, etc., and achieves improved integrity and accuracy, high real-time performance, and simple implementation. Effect

Pending Publication Date: 2020-03-20
TAIKANG LIFE INSURANCE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to different printing methods and different image acquisition methods, the manually set color information often seriously deviates from the real bill, resulting in poor elimination of bill interference information, incomplete text detection in the gland area, and low text recognition accuracy.

Method used

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  • Image information extraction method and device
  • Image information extraction method and device
  • Image information extraction method and device

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Experimental program
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Effect test

Embodiment 2

[0043] In the second embodiment, the preprinted character template is preset to complete the extraction of the color and position of the preprinted character in the receipt image, and then extract the printed character information in the overlapping area of ​​the preprinted character information and the printed character information. The above method replaces the traditional method of using bill image templates, which not only saves system storage space, but also simplifies system calculation complexity, and has strong applicability. The specific implementation process is as follows.

[0044] figure 2 is a schematic flowchart of the main flow of the image information extraction method according to Embodiment 2 of the present invention. Such as figure 2 As shown, the image information extraction method in the second embodiment of the present invention mainly includes the following steps:

[0045] Step S201: Obtain the color channel of the receipt image, so as to make stati...

Embodiment 3

[0054] Embodiment 3 adopts the idea of ​​image color layering, divides the bill image into four categories: seal, pre-printed character information, printed character information, and image background, extracts the seal color information of the bill image through the ellipse detection algorithm, and uses the pre-printed character template and The image segmentation algorithm extracts the color information of pre-printed characters, and then replaces the stamp and pre-printed character information with the image background color, so that it can detect and recognize all the printed character information of the bill image, and improve the accuracy of the formatted output of the entire bill data . The specific implementation process is as follows.

[0055] Figure 4 is a schematic flowchart of the main flow of the image information extraction method according to Embodiment 3 of the present invention. Such as Figure 4 As shown, the image information extraction method of the thi...

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Abstract

The invention discloses an image information extraction method and device, and relates to the technical field of computers. A specific embodiment of the method comprises the steps of performing text detection and recognition on a target image to obtain a text line of the target image and character information of the text line; matching the character information with a set pre-printed character template to determine the position of the pre-printed character information in the text line; performing image segmentation on the text line image corresponding to the position of the pre-printed character information to locate the pixel position of the pre-printed character information, and extracting pre-printed character color information at the pixel position; and using the background color information of the target image to replace the pre-printed character color information, and performing character detection and recognition on the target image after color replacement to obtain printed character information. According to the method, the pre-printed character color information is extracted, after the background color is used for replacing the pre-printed character color information, character detection and recognition are carried out, the printed character information is obtained, and the integrity and accuracy of gland area information recognition are improved.

Description

technical field [0001] The invention relates to the field of computers, in particular to an image information extraction method and device. Background technique [0002] Bill recognition OCR (Optical Character Recognition, optical character recognition) system is a general-purpose data batch collection software, which is suitable for information extraction of forms, questionnaires, documents, insurance policies, etc. with form characteristics. Specifically, through scanning, image processing, automatic classification, and OCR technology, the system can accurately, quickly, and truly extract and save data information in table images, and can export data results into standard data formats, such as Excel tables, It can be seamlessly integrated with ERP (Enterprise Resource Planning, enterprise resource planning), CRM (Customer Relationship Management, customer relationship management) and other systems. [0003] There is a common phenomenon on the face of various bills, that i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/34
CPCG06V10/267
Inventor 马文伟刘设伟王亚领闫永泽
Owner TAIKANG LIFE INSURANCE CO LTD
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