论文总字数：17332字

摘 要

在互联网和通讯技术不断发展的今天，网课逐渐流行起来，这种新模式的线上上课方式逐渐呈现出常态化的趋势，只要动动手指，你想学习的内容便能触手可及。再加上突发的疫情把很多人的生活，工作以及学习节奏都打乱了，越来越多的人开始尝试在家里上课、办公，以前大家觉得距离自己十分遥远甚至无法接受的网课，也成为了当下最时髦的学习方式。网课模式是大势所趋，更由于疫情这个加速剂，在未来的几年中，网课将会迅速发展，并逐渐趋于完善，在注重教育课程内容的同时，还会将课堂的互动性作为一个重点方面来发展，让网课可以像线下传统课堂一样能够互动及时，又承袭了线上教育原有的优势，让时间越来越宝贵的学员可以利用碎片时间学习，随时回放。

但相对而言，作为新生事物的线上教学同样也有较多弊端，例如教师无法进行课堂的管理，学生如果不自律也无法纠正，多数成绩不好的学生主要是因为不自律导致，线上教学要靠学生的自律和家长的监督，如果做不到这两点学习的效果就会很不理想

本文旨在针对在校师生的线上学习交互过程量身定制一个考察判定系统，通过对于学生在线上学习的过程中用以视频录制，逐帧截取视频中的学生的听讲画面抽样比对上课前学生的精神面貌，实现个性化的教师与每个学生之间的课堂交互。以数字形式具现出学生在学习过程中的听课专注情况，以便于老师更好的了解学生的线上听讲情况。

本此设计运用了Java语言、动态页面开发技术、B/S结构模式、开发框架技术、eclipse、MySQL数据库等工具及技术；切割视频方面用的是open cv；图像比对方面则是借助了虹软离线人脸识别SDK3.0技术。直观来说，是一款针对线上教学中解决老师无法直观感受学生听课状态的考察判定系统。

关键词： java，B/S结构模式，eclipse，MySQL数据库，虹软SDK3.0，open cv

Design and implementation of College Students' Academic Emotion Analysis System

Abstract

Today, with the continuous development of the Internet and communication technology, online classes are gradually becoming popular. This new mode of online class is gradually showing a trend of normalization. As long as you move your fingers, the content you want to learn will be within reach. In addition, the sudden epidemic has disrupted the lives, work and learning pace of many people. More and more people are beginning to try to teach and work at home. In the past, everyone felt that they were very far away from them and even unacceptable. It has also become the most fashionable way of learning at the moment. The online course model is the general trend, and because of the accelerator of the epidemic, in the next few years, online courses will develop rapidly and gradually become more perfect. While paying attention to the content of education courses, it will also take the interactivity of the classroom as a Focus on development, so that online courses can be interactive and timely like offline traditional classrooms, and inherit the original advantages of online education, so that students who have more and more precious time can use fragmented time to learn and replay at any time.

But relatively speaking, online teaching as a new thing also has many drawbacks. For example, teachers cannot manage classrooms, and students cannot correct them if they do not self-discipline. Most students with poor grades are mainly caused by non-self-discipline. Online teaching It depends on students’ self-discipline and parental supervision. If you fail to do these two points, the effect of learning will be very unsatisfactory

This article aims to tailor an inspection and judgment system for the interactive process of online learning between teachers and students at school. Through the use of video recording during the online learning process of students, the students’ listening pictures in the video are captured frame by frame and compared to the class The mental outlook of the former students, to achieve personalized classroom interaction between the teacher and each student. The student’s concentration in class during the learning process is presented in digital form, so that the teacher can better understand the student’s online listening status.

This design uses Java language, dynamic page development technology, B/S structure mode, development framework technology, eclipse, MySQL database and other tools and technologies; cutting video uses open cv; image comparison uses rainbow Soft offline face recognition SDK3.0 technology. Generally speaking, it is an inspection and judgment system aimed at solving the teacher's inability to intuitively feel the students' listening state in online teaching.

Key words: Java, B / S structure mode, eclipse, MySQL database, software SDK，open cv

目录

摘 要 I

Abstract II

第一章 绪论 1

1.1 选题背景和意义 1

1.1.1选题背景 1

1.1.2选题意义 1

1.2国内外研究现状 1

1.3课题研究内容 2

1.4各章节内容提要 3

第二章 系统开发相关工具及相关技术 3

2.1 系统开发相关工具 3

2.1.1 Eclipse 3

2.1.2 MySQL数据库 3

2.2系统开发相关技术 3

2.2.1 JAVA语言 3

2.2.2动态页面开发技术 3

2.2.3 B/S结构模式 4

2.2.4 开发框架技术 4

第三章 需求分析 6

3.1 系统需求分析 6

3.2 可行性需求分析 6

3.2.1技术可行性 6

3.2.2经济可行性 6

3.2.3法律可行性 7

3.3 性能需求分析 7

3.3.1 硬件性能需求 7

3.3.2 软件性能需求 7

3.4 总结 7

第四章 概要设计 8

4.1总体结构图 8

4.2系统模块功能 8

4.2.1登陆模块 8

4.2.2员工模块 9

4.2.3管理员模块 9

4.3人脸识别流程 10

4.4考勤流程 11

第五章 详细设计 12

5.1关系数据模式设计 12

5.2程序结构图 12

5.3 实体关系图 14

第六章 系统测试 16

6.1登录功能测试 16

6.2管理员功能测试 16

6.3用户功能测试 18

6.4总结 19

第七章 总结 20

致谢 21

参考文献 22

第一章 绪论

1.1 选题背景和意义

1.1.1选题背景

随时时代的发展与进步，线上教学在学生的日常学习生活中占据的比例越来越大，在线上教学中,教师关注每个学生的情绪变化和学习状态来调节教学有效提升教学质量。然而,目前的课堂存在教师精力不足、教学反馈延迟等问题,在一定程度上,影响教学质量的提升,阻碍学生的发展。近年来,随着信息技术的迅猛发展和广泛应用,图像处理、人工智能等新技术为提升教学质量方面的研究带来了新的思路和方法。

1.1.2选题意义

因为线上教学在学生的生活中占据的位置越来越重，所以我们需要深入了解这个全新的教学模式，清晰的明了的分析出线上教学对于学生的学习的优劣，这种全新的教学模式对于师生双方来说好处是显而易见的。线上教育突破了线下教育在地域、时间、成本等方面的局限性，为教育行业打开了一扇天窗，让教育行业可以飞得更高更远，在线教育的优势主要体现在以下几方面：

1、知识获取的便捷性

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