网上阅卷系统中的倾斜检测方法研究  

Research on Skew Detection Method in Online Marking System

作　　者：毛晚堆[1] 刘海敬 孔偌琳 MAO Wan-dui;LIU Hai-jing;KONG Ruo-lin(Shijiazhuang Tiedao University,Shijiazhuang 050043,China;Southwest Guizhou Vocational & Technical College for Nationalities,Xingyi 562400,China;Shijiazhuang Railway Transportation Procuratorate,Shijiazhuang 050031,China)

机构地区：[1]石家庄铁道大学,石家庄050043 [2]黔西南民族职业技术学院,兴义562400 [3]石家庄铁路运输检察院,石家庄050031

出　　处：《价值工程》2018年第35期230-231,共2页Value Engineering

基　　金：河北省高等学校科学技术研究项目(项目编号:ZD2016117)

摘　　要：将考生试卷扫描成图像的过程中,难免会出现试卷图像的倾斜,继而影响后续试卷信息的识别结果的准确度以及识别精度。为提高试卷处理的工作效率,通过对试卷图像进行倾斜校正,以节省返工时间或手动处理时间。为此本文结合具体环境,通过初次检测与深度检测相结合的方法,在确保时间效率的情况下提高检测的准确度,实验表明,该方法能快速准确测量出试卷图像的倾斜角度。In the process of scanning the test paper into images,it is inevitable that the image of the test paper will be tilted,which will affect the accuracy and recognition accuracy of the subsequent information of the test paper.In order to improve the efficiency of paper processing,by tilting the paper image to save rework time or manual processing time.For this reason,in combination with the specific environment and through the combination of initial detection and depth detection,the paper improves the detection accuracy in consideration of the time efficiency.Experiments show that this method can quickly and accurately measure the tilt angle of examination paper images.

关 键 词：倾斜校正 HOUGH变换 网上阅卷 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]