With the increase of distance learning, in general, and e-learning, in particular, having a system capable of determining the engagement of students is of primordial importance, and one of the biggest challenges, both for teachers, researchers and policy makers. Here, we present a system to detect the engagement level of the students. It uses only information provided by the typical built-in web-camera present in a laptop computer, and was designed to work in real time. We combine information about the movements of the eyes and head, and facial emotions to produce a concentration index with three classes of engagement: "very engaged", "nominally engaged" and "not engaged at all". The system was tested in a typical e-learning scenario, and the results show that it correctly identifies each period of time where students were "very engaged", "nominally engaged" and "not engaged at all". Additionally, the results also show that the students with best scores also have higher concentration indexes.
翻译:随着远程学习和电子学习的增加,听取学生的参与度水平成为教师,研究人员和政策制定者面临的最大挑战之一。本文介绍了一种通过使用笔记本电脑内置摄像头提供的信息来检测学生参与度水平的系统,具有实时性。我们结合眼球和头部运动以及面部表情的信息来产生一个具有“非常参与”,“名义上参与”和“完全未参与”三个类别的专注度指数。系统在一个典型的电子学习场景中进行了测试,结果表明它能够正确识别学生“非常参与”,“名义上参与”和“完全未参与”的每个时间段。此外,结果还表明,得分最好的学生也具有更高的专注度指数。