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Invoice image registration method and device, and computer storage medium

An image registration and registration technology, applied in the field of image processing, can solve the problems of limited registration methods, large image differences, and high registration failure rate, and achieve the effect of improving registration efficiency and increasing practicability.

Pending Publication Date: 2020-10-30
ZHEJIANG DAHUA TECH CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this registration method is too limited, only for value-added tax invoices with more commonality, and in the extraction process, multiple common areas need to be extracted, which makes the images more different and the registration failure rate is high

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  • Invoice image registration method and device, and computer storage medium
  • Invoice image registration method and device, and computer storage medium
  • Invoice image registration method and device, and computer storage medium

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0025] This application proposes an invoice image registration method, for details, please refer to figure 1 , figure 1 It is a schematic flowchart of an embodiment of the invoice image registration method provided by this application. The invoice image registration method in this embodiment can be applied to an invoice image registration device, and can also be applied to a server with data processing capabilities. The invoice image registration ...

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Abstract

The invention provides an invoice image registration method and a related device. The method comprises the steps of extracting a to-be-registered feature map of a to-be-registered invoice image and atemplate feature map of a template invoice image; calculating a to-be-registered distance between every two to-be-registered feature points in the to-be-registered feature map; sequentially selectinga first preset number of to-be-registered feature point pairs from small to large according to the to-be-registered distance so as to obtain to-be-registered pixel point pairs in the to-be-registeredinvoice image, the to-be-registered pixel point pairs corresponding to the to-be-registered feature point pairs; calculating a template distance between every two template feature points in the template feature map; sequentially selecting a first preset number of template distances from small to large according to the template distances so as to obtain template pixel point pairs in the template invoice image according to the template feature point pairs corresponding to the first preset number of template distances, the template pixel point pairs corresponding to the template feature point pairs; calculating a conversion relationship between the pixel point pair to be registered and the template pixel point pair; and performing conversion registration on the to-be-registered invoice imageto the template invoice image according to the conversion relationship. According to the invention, the registration rate is improved.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to an invoice image registration method, device and computer storage medium. Background technique [0002] The registration of the invoice image in the prior art extracts the fixed common area in the image to be registered and the template invoice image, and calculates the transformation relationship between the image to be registered and the template invoice image according to the fixed common area. However, this registration method is too limited, only for the value-added tax invoices with more common features, and in the extraction process, multiple common areas need to be extracted, which makes the images more different and the registration failure rate is high. Contents of the invention [0003] This application provides a registration method, device and computer storage medium for an invoice image, and the main technical problem to be solved is how to impr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62
CPCG06V10/751G06F18/253
Inventor 赵诗云陈媛媛
Owner ZHEJIANG DAHUA TECH CO LTD
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