A method and system for automatic invoice verification
An invoice and verification technology, applied in the field of automated invoice verification methods and systems, can solve the problems of inability to accurately determine the type of identification information and low verification efficiency.
Active Publication Date: 2020-11-13
新浪技术(中国)有限公司
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Problems solved by technology
[0010] The existing OCR technology cannot accurately determine the type of identification information, and the determination of the type requires manual intervention, resulting in relatively low verification efficiency
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[0101] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0102] The purpose of the present invention is to provide an automatic invoice verification method, by using a specific mark with a fixed position on the original image as a benchmark, it can accurately determine the four-element subgraph about the invoice code, invoice number, date of invoice and pre-tax amount; Furthermore, the OCR engine is used to perform OCR recognition on the four-element sub-graphs, so that the corresponding four-element information can ...
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An embodiment of the invention provides an automatic invoice authenticity verification method and an automatic invoice authenticity verification system. The automatic invoice authenticity verificationmethod comprises the steps of: acquiring an original image of an invoice to be verified; extracting parameter information of a specific identifier having a fixed position on the original image; performing coarse segmentation on the original image according to the parameter information to obtain an upper right sub-image and a lower right sub-image; performing layout analysis to obtain regional coordinates of four elements of the invoice; intercepting four-element sub-images from the original image according to the regional coordinates; calling an OCR engine, and performing optical character recognition on the four-element sub-images by means of the OCR engine respectively, so as to obtain four-element information; and transmitting the four-element information to a tax interface, and performing authenticity verification on the invoice to be verified. The automatic invoice authenticity verification method and the automatic invoice authenticity verification system can determine the four-element sub-images precisely by taking the specific identifier having the fixed position on the original image as a reference, perform OCR recognition on the four-element sub-images by means of the OCRengine to obtain the corresponding four-element information, and can verify the authenticity of the invoice to be verified through matching the recognition information with types.
Description
technical field [0001] The invention relates to the technical field of invoice identification, in particular to an automatic invoice verification method and system. Background technique [0002] In the process of financial reimbursement by financial personnel, invoice verification is an important link. Through invoice verification, true and false invoices can be effectively identified to avoid financial losses caused by false invoices. For invoice verification, it is necessary to provide the tax agency with the four elements of "invoice code", "invoice number", "pre-tax amount", and "invoice date" (hereinafter referred to as the four elements), which are on the face of the invoice Both are available. [0003] The original authenticity verification method is that the financial personnel manually enter the corresponding content into the authenticity verification interface provided by the tax agency (referred to as the tax interface) for verification. This method is inefficien...
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IPC IPC(8): G07D7/20
CPCG07D7/20G07D7/2016
Inventor 郝双
Owner 新浪技术(中国)有限公司