Scanning recognition method and device for automatic question number recognition

The invention provides a scanning recognition method and device for question number automatic recognition, and relates to the field of automatic paper marking. A manufacturing method comprises the following steps: establishing an identification template library of numeric characters 0-9, and storing...

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Bibliographic Details
Main Authors CHEN CHAOHONG, LONG MINGWEI, XIONG ZHIWEI, YANG YOUKE, FENG GUOLIANG, KE WEIHAI, WANG LIJUAN
Format Patent
LanguageChinese
English
Published 21.12.2021
Subjects
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary:The invention provides a scanning recognition method and device for question number automatic recognition, and relates to the field of automatic paper marking. A manufacturing method comprises the following steps: establishing an identification template library of numeric characters 0-9, and storing a template feature component of each numeric character; scanning the blank answer examinee answer sheet to obtain an examinee answer sheet image, and storing the examinee answer sheet image; performing gray processing on the examinee answer sheet image, converting the examinee answer sheet image into a gray-scale map, and performing binarization processing on the gray-scale map; selecting continuously read objective question information from the examinee answer sheet image by using a rectangular frame; cutting the image in the rectangular frame, identifying the category and position of each element in the image in the rectangular frame, and identifying the numerical values of all question number elements; and dete
Bibliography:Application Number: CN202111076066