OCR system evaluation method, device and equipment and a readable storage medium

A technology for evaluating indicators and storing images, which is applied in the field of optical character recognition, and can solve problems such as difficult to reflect the overall performance of the OCR system

Active Publication Date: 2020-12-18
ONE CONNECT SMART TECH CO LTD SHENZHEN
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AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide an OCR system evaluation method, device, equipment and readable storage medium, aiming to solve the technical problem that the existing OCR system evaluation technology is difficult to reflect the overall performance of the OCR system

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  • OCR system evaluation method, device and equipment and a readable storage medium
  • OCR system evaluation method, device and equipment and a readable storage medium
  • OCR system evaluation method, device and equipment and a readable storage medium

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no. 1 example

[0091] Based on the first embodiment, the second embodiment of the evaluation method of the OCR system of the present invention is proposed, referring to image 3 , in this embodiment, step S10 includes:

[0092] Step S11, input the training image into the first deep learning model, and obtain the corresponding text detection model after training the first deep learning model;

[0093] Step S12, train a second deep learning model based on the character detection model, and obtain the corresponding character recognition model after the training of the second deep learning model is completed.

[0094] In this embodiment, the first deep learning model in the initial OCR system is first trained, the text detection model is obtained after the first deep learning model is completed, and then the text detection model and the second deep learning model are jointly trained. Wherein, the OCR system includes a character detection model and a character recognition model. Specifically, t...

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Abstract

The invention discloses an OCR system evaluation method, device and equipment and a readable storage medium, and the method comprises the steps: obtaining a training image, inputting the training image into an initial OCR system, so as to train the initial OCR system, and obtaining a corresponding OCR system after the training of the initial OCR system is completed; inputting the to-be-recognizedimage into an OCR system to determine a character recognition result corresponding to the to-be-recognized image based on the OCR system; and determining a character recall rate corresponding to the OCR system and a character recognition accuracy rate corresponding to the OCR system based on the character recognition result and the actual annotation data corresponding to the to-be-recognized image, and calculating an evaluation index of the OCR system based on the character recall rate and the character recognition accuracy rate so as to evaluate the performance of the OCR system based on theevaluation index. The problem that in the prior art, character detection and character recognition are separately and independently evaluated, and consequently evaluation indexes cannot objectively reflect the overall performance of the OCR system is solved.

Description

technical field [0001] The invention relates to the technical field of optical character recognition, in particular to an evaluation method, device, equipment and a readable storage medium of an OCR system. Background technique [0002] OCR (Optical Character Recognition) technology can convert the printed text in the image into a text format that can be processed by the computer. The entry and verification in OCR technology are widely used in data comparison and other scenarios, and become the informatization and digitization of various industries in the national economy. critical part of the application. With the continuous development of big data and deep learning technology, OCR technology has made a breakthrough, and OCR technology is widely used in the application of printed document scan recognition. [0003] At present, the evaluation of the recognition accuracy of the OCR system usually includes two links: text detection and text recognition. In the prior art, tex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/583G06F16/55G06T11/60G06N3/04G06N3/08
CPCG06F16/5846G06F16/55G06T11/60G06N3/08G06N3/045
Inventor 高超徐国强
Owner ONE CONNECT SMART TECH CO LTD SHENZHEN
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