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Information identification method of full-filling information card

A technology of information identification and information card, which is applied in the field of information identification of filling information cards, which can solve the problems of inconvenience and lack of original image information, and achieve the effect of low printing requirements

Active Publication Date: 2009-07-15
SHENZHEN SEA SKY LAND TECH
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  • Abstract
  • Description
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Problems solved by technology

[0009] e. There is no original image information, and if an error is found, only the original paper card can be checked, which is extremely inconvenient

Method used

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  • Information identification method of full-filling information card
  • Information identification method of full-filling information card
  • Information identification method of full-filling information card

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Embodiment Construction

[0023] The present invention takes the objective question answer sheet as an example to illustrate the information recognition method of filling in the information card, which is mainly to scan the answer sheet into an image through a scanner, and then perform symbol recognition on the image to obtain the filling information of the examinee, which is called IMR (ImageMark Recognise, image symbol recognition).

[0024] The production requirements of the answer sheet using the information identification method of filling in the information card of the present invention are as follows: Compared with OMR, the requirements of IMR for answer sheet printing are greatly reduced, (OMR answer sheet such as figure 1 As shown), IMR requires a horizontal / vertical sync header to be printed on the answer sheet (such as figure 2 (Shown), the synchronization heads of these two orientations are used to determine the grid coordinates of the entire answer sheet; all areas that can be filled by stud...

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PUM

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Abstract

The invention discloses an information identification method for filling an information card, which comprises the following steps: scanning the information card, establishing an index for the scanned image and recording it into a warehouse, and making an electronic template of the information card; The image is recognized and processed. The specific method is: first find the center coordinate position of each synchronization head of the information card according to the template synchronization head information, and then locate the coordinates of each recognition area according to the template, and then take the information of each recognition area. The gray level and density information of the area determine the choice of the answer, and finally format the output result. The method of the present invention is widely used in examination papers, has low printing requirements for answer sheets, can truly reflect the willingness of some candidates to answer questions that have been mistakenly painted, and can call the original image for comparison during verification, and can also restore recognition on the image again Therefore, it is beneficial for the user to have evidence when adjusting the identification parameters.

Description

Technical field [0001] The invention relates to an information recognition method for filling in an information card, in particular to an information recognition method for an objective question answer sheet. Background technique [0002] The optical mark reader (OMR) is a fast entry device for computers. It integrates mechanical, optical and electrical technologies, and is widely used in standardized examinations and various statistics with its fast and reliable performance. OMR first appeared in the 1960s, and now the system is widely used in information processing systems such as examination scoring, scoring, statistics and even horse racing at home and abroad. [0003] The optical mark reader is a device that uses the principle of photoelectric conversion to convert the optical information symbols on the information card in a prescribed format into an electrical signal that can be processed by a computer. The information card is usually a piece of paper. There are rectangular...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/62
Inventor 刘彦刘新平陈小林
Owner SHENZHEN SEA SKY LAND TECH
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