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    • 2. 发明申请
    • SYSTEM AND METHOD FOR USING OPTICAL CHARACTER RECOGNITION TO EVALUATE STUDENT WORKSHEETS
    • 使用光学字符识别来评估学生工作表的系统和方法
    • US20120189999A1
    • 2012-07-26
    • US13012359
    • 2011-01-24
    • Todd Maurice UthmanFrank PorterAdam D. Ledgerwood
    • Todd Maurice UthmanFrank PorterAdam D. Ledgerwood
    • G09B7/00
    • G09B7/02
    • A system and method for evaluating worksheets are provided. The method includes accessing by a processor a digitally stored image of a worksheet that was administered to a student, wherein the worksheet includes the presentation of at least one problem for the student to respond to and each problem presentation includes an answer region that the student manually, mechanically, or electronically marked with an answer to the problem using a variety of alphanumeric characters. The method further includes generating expected answer data that provides an expected answer for each answer region; locating each answer region in the image; extracting from each located answer region the student's marks; processing the student's marks extracted from each answer region with character recognition processing; and storing the processed marks as student answer data. The student answer data is evaluated by comparing the student answer data with the expected answer data and generating corresponding evaluation data.
    • 提供了一种用于评估工作表的系统和方法。 该方法包括由处理器访问被管理给学生的工作表的数字存储的图像,其中工作表包括呈现至少一个问题以供学生回答,并且每个问题呈现包括学生手动地回答的答复区域 机械地或以电子方式标记出使用各种字母数字字符的问题的答案。 该方法还包括产生对每个应答区域提供期望答案的预期答案数据; 在图像中定位每个答案区域; 从每个位置的答案区域提取学生的标记; 用字符识别处理处理从每个答案区域提取的学生标记; 并将处理的标记存储为学生回答数据。 通过将学生回答数据与预期答案数据进行比较并生成相应的评估数据来评估学生回答数据。