Method, device and computer storage medium for removing invoice stamp

A seal and invoice technology, which is applied in the field of invoice recognition preprocessing, can solve problems such as the inability to effectively eliminate stamps, and achieve the effects of improved text detection accuracy, improved accuracy, and good applicability

Active Publication Date: 2021-11-16
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the recognition task of invoice stamps, the invoice image may contain multiple stamps of different colors, the color of the stamps is uneven, and other fonts with the same color as the stamps, etc., such methods cannot effectively eliminate the stamps

Method used

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  • Method, device and computer storage medium for removing invoice stamp
  • Method, device and computer storage medium for removing invoice stamp
  • Method, device and computer storage medium for removing invoice stamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Embodiment one, as Figure 1-3 as shown, figure 1 It is a schematic flow chart of a method for eliminating an invoice stamp of the present invention, figure 2 It is a schematic illustration of the application of a method for eliminating invoice stamps of the present invention Figure 1 , image 3 It is a schematic illustration of the application of a method for eliminating invoice stamps of the present invention Figure II .

[0069] Such as figure 1 Shown, a kind of invoice stamp elimination method comprises the following steps:

[0070] S1: Collect invoice image samples containing stamp patterns to make a data set, and train the data set to obtain a trained detection model;

[0071] S2: Use the trained detection model to detect the image of the invoice whose seal is to be removed, extract the image of the seal area in the image of the invoice, and determine the color of the stamp pattern;

[0072] S3: Eliminate the stamp pattern according to the color of the s...

Embodiment 2

[0091] Embodiment two, such as Figure 4 as shown, Figure 4 It is the structural representation of a kind of invoice stamp elimination device of the present invention Figure 1 .

[0092] A device for eliminating invoice stamps, comprising a collection unit 10, a data set production unit 20, a training unit 30, a detection unit 40, an elimination unit 50 and a fusion unit 60;

[0093] The collection unit 10 is used to collect an invoice image sample containing a seal pattern;

[0094] The data set making unit 20 is configured to make the invoice image sample into a data set;

[0095] The training unit 30 is configured to train the data set to obtain a trained detection model;

[0096] The detection unit 40 is configured to use the trained detection model to detect the invoice image of the stamp to be eliminated, extract the stamp area image in the invoice image, and determine the color of the stamp pattern;

[0097] The elimination unit 50 is configured to eliminate the ...

Embodiment 3

[0111] Embodiment 3, based on Embodiment 1 and Embodiment 2, the present invention also discloses a device for removing invoice stamps, such as Image 6 as shown, Image 6 It is a schematic structural diagram of another device for eliminating invoice stamps of the present invention, including collection equipment 100 and processing equipment 200;

[0112] The collection device 100 is used to collect image samples of invoices containing seals;

[0113] The processing device 200 includes: a processor 201, a memory 202, and a computer program 203 stored in the memory 202 and operable on the processor 200. When the computer program 203 runs, the figure 1 The following steps are shown:

[0114] S1: collecting invoice image samples containing seal patterns to make a data set, and training the data set to obtain a trained detection model;

[0115] S2: Use the trained detection model to detect the image of the invoice whose seal is to be removed, extract the image of the seal area ...

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Abstract

The present invention relates to a method, a device and a computer storage medium for eliminating an invoice seal. The method includes collecting an invoice image sample containing a seal pattern, making a data set, and training the data set to obtain a trained detection model; using the training Good described detection model detects the invoice image to be eliminated stamp, extracts the seal area image in the invoice image, and determines the color of the seal pattern; The stamp is eliminated to obtain a background image of the stamp area; the background image of the stamp area is fused with the invoice image extracted from the image of the stamp area to obtain a target invoice image for stamp erasure. The method for eliminating the invoice seal of the present invention can better eliminate the seal, avoid affecting the identification of other text information in the invoice, can significantly improve the accuracy of invoice identification, and improve the work efficiency of invoice identification.

Description

technical field [0001] The invention relates to the technical field of invoice identification preprocessing, in particular to a method, device and computer storage medium for eliminating an invoice stamp. Background technique [0002] In recent years, with the rapid development of my country's social economy, economic activities have become increasingly frequent, and both ordinary consumers and various types of enterprises have become more and more aware of the fact that consumption must be invoiced and reimbursed by the ticket. At present, hundreds of millions of invoices are used for reimbursement in my country every year, and the types of invoices are also increasing. If these invoices are manually processed, on the one hand, it will consume a lot of manpower and material resources, increase the workload of the financial personnel responsible for reimbursement, and take up a lot of extra energy for the reimbursement person. On the other hand, manual processing of invoice...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/34G06K9/00G06K9/46G06K9/62
CPCG06V30/40G06V10/273G06V10/56G06F18/251
Inventor 刘军李威
Owner WUHAN INSTITUTE OF TECHNOLOGY
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