| 基于灰度图像的答题卡识别技术 |
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| 引用本文： | 杨青燕,彭延军. 基于灰度图像的答题卡识别技术[J]. 山东科技大学学报(自然科学版), 2009, 28(3): 99-102 |
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| 作者姓名： | 杨青燕 彭延军 |
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| 作者单位： | 山东科技大学,信息科学与工程学院,山东,青岛,266510 |
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| 基金项目： | 山东省教育厅计划项目 |
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| 摘 要： | 针对目前电脑阅卷技术中存在的一些问题，提出了一种基于灰度图像识别技术的答题卡判别方法。首先对答题卡图像进行高斯滤波，依据模板定位填涂区域，然后针对正常填涂、未填涂和涂改等情况做出正确的判断，最后，将答案以及考生信息读入数据库。此系统为不同答题卡定义相应的模板，可应用于各类答题卡的阅卷工作。实验结果表明了此方法的有效性。
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| 关 键 词： | 灰度图像 高斯滤波 图像识别 特征提取 答题卡 |
The Exam Card Reading Technology Based on Grey Image |
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| YANG Qing-yan,PENG Yan-jun. The Exam Card Reading Technology Based on Grey Image[J]. Journal of Shandong Univ of Sci and Technol: Nat Sci, 2009, 28(3): 99-102 |
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| Authors: | YANG Qing-yan PENG Yan-jun |
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| Affiliation: | College of Information Science and Engineering;SUST;Qingdao;Shandong 266510;China |
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| Abstract: | In view of the shortage existed in computer scoring technology nowadays,this paper introduces a new method for exam card judgment based on gray image recognition technology.Firstly,it makes the exam card image be Gaussian filtered to focus on the marked areas based on template;then,it makes the correct judgments upon normal mark,unwritten mark and changed mark,and lastly,it inputs such information as answers and students into the database.This system can define relevant formats upon different exam cards,thu... |
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| Keywords: | gray image Gaussian filter image identification character extracting exam card |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
