Laboratory-sheet identification method based on image processing

A recognition method and image processing technology, which are used in character recognition, electrical digital data processing, character and pattern recognition, etc., to achieve the effect of improving accuracy and recognition accuracy.

Inactive Publication Date: 2017-12-19
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, people want to know the physical conditions reflected by the various indicators of the examination after undergoing routine examinations in the hospital, but there is no authoritative doctor and medical team to interpret the test sheets; It is a strong demand in the current market

Method used

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  • Laboratory-sheet identification method based on image processing
  • Laboratory-sheet identification method based on image processing
  • Laboratory-sheet identification method based on image processing

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Embodiment Construction

[0047] In order to describe the present invention more specifically, the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0048] Such as figure 1 with figure 2 As shown, the image processing-based test sheet recognition method of the present invention includes the following steps:

[0049] (1) Test single edge recognition.

[0050] After obtaining the picture of the test sheet taken by the mobile phone, the main body of the test sheet must be identified from the environmental background and separated from the background. This process depends on the accurate detection of the boundary of the test sheet. In this embodiment, through the steps of resampling, preprocessing and edge detection, line detection, intersection point calculation and quadrilateral detection in sequence, the task of detecting the boundaries around the test sheet is completed. The specific steps are as fol...

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Abstract

The invention discloses a laboratory-sheet identification method based on image processing. According to the method, a set of algorithms which can accurately divide each area of a laboratory sheet and carry out effective cleaning are designed through investigation and analysis on a laboratory-sheet structure, how to process a laboratory-sheet photograph, which is shot by a mobile phone, step by step to finally obtain a clear image is standardized and subdivided, and a mature open-source OCR engine is used for identification; in each stage of a laboratory-sheet image processing process, the method makes thorough consideration, optimizes the performance, and improves the efficiency of image processing; and after identification, a laboratory-sheet item lexicon established by utilizing a laboratory test item information database by the method realizes automatic selection for identification engine modes and intelligent error correction for an identification result, and improves the accuracy of the laboratory-sheet identification result.

Description

technical field [0001] The invention belongs to the technical field of medical OCR, and in particular relates to an image processing-based identification method for a test sheet. Background technique [0002] OCR (Optical Character Recognition, Optical Character Recognition) refers to the process of analyzing and recognizing image files of text data to obtain text and layout feature information; it uses optical technology and computer technology to read the text in the image, and Convert it into a format that computers can understand; OCR technology is a key technology to achieve high-speed text entry. [0003] China's research work on OCR technology started relatively late. It was only in the 1970s that it began to study the recognition technology of numbers, English letters and symbols, and it began to study Chinese character recognition in the late 1970s. Since the 1970s, optical character recognition technology has been widely used in news, printing, publishing, librari...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46G06K9/32G06K9/34G06K9/62G06F17/30
CPCG06F16/245G06V30/412G06V10/255G06V10/243G06V10/267G06V10/44G06V10/48G06V30/10G06F18/28G06F18/24
Inventor 尹建伟岑超赵景晨邓水光李莹吴健吴朝晖
Owner ZHEJIANG UNIV
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