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随着科技的发展,传统的签到方式已经无法满足现代社会对于效率和准确性的要求。本论文设计并实现了一种基于人脸识别技术的智能签到系统,该系统能够有效地提升签到流程的管理效率和安全性。系统采用Python语言开发,利用SQLite作为数据库支持,实现了用户信息的快速录入、人脸特征的采集与存储以及高效的人脸识别算法。通过集成Haar特征级联分类器和LBPH算法,系统能够在各种光照和角度条件下准确识别用户的人脸,确保了签到数据的准确性。系统还提供了友好的用户界面和签到记录的查询管理功能,使得用户和管理员能够轻松地进行日常签到操作和出勤数据的监控。经过一系列系统测试,验证了该签到系统在功能、性能和用户体验方面的可行性和有效性,为教育机构、企业等提供了一种新型的考勤解决方案。 人脸识别;智能签到系统;考勤管理;Haar特征级联分类器;LBPH算法
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I
摘 要
随着科技的发展,传统的签到方式已经无法满足现代社会对于效率和准确性
的要求。本论文设计并实现了一种基于人脸识别技术的智能签到系统,该系统能
够有效地提升签到流程的管理效率和安全性。系统采用 Python 语言开发,利用
SQLite 作为数据库支持,实现了用户信息的快速录入、人脸特征的采集与存储
以及高效的人脸识别算法。通过集成 Haar 特征级联分类器和 LBPH 算法,系统
能够在各种光照和角度条件下准确识别用户的人脸,确保了签到数据的准确性。
系统还提供了友好的用户界面和签到记录的查询管理功能,使得用户和管理员能
够轻松地进行日常签到操作和出勤数据的监控。经过一系列系统测试,验证了该
签到系统在功能、性能和用户体验方面的可行性和有效性,为教育机构、企业等
提供了一种新型的考勤解决方案。
关键词:人脸识别;智能签到系统;考勤管理;Haar 特征级联分类器;LBPH
算法
II
Abstract
With the advancement of technology, traditional sign-in methods can no longer
meet the modern society's demands for efficiency and accuracy. This thesis designs and
implements an intelligent attendance system based on facial recognition technology,
which effectively enhances the management efficiency and security of the sign-in
process. The system is developed using the Python language and supported by the
SQLite database, enabling rapid entry of user information, collection and storage of
facial features, and efficient facial recognition algorithms. By integrating Haar feature-
based cascade classifiers and Local Binary Patterns Histograms (LBPH) algorithms, the
system can accurately recognize users' faces under various lighting and angle
conditions, ensuring the accuracy of sign-in data. The system also provides a user-
friendly interface and functions for querying and managing sign-in records, making it
easy for users and administrators to perform daily sign-in operations and monitor
attendance data. A series of system tests have verified the feasibility and effectiveness
of the attendance system in terms of functionality, performance, and user experience,
offering a new type of attendance solution for educational institutions, enterprises, and
beyond.
Keywords:Facial Recognition;Intelligent Sign-In System;Attendance
Management;Haar Feature-based Cascade Classifiers;Local Binary Patterns
Histograms
目录
摘 要 .......................................................................................................................................................................I
Abstract ................................................................................................................................................................II
1 绪论....................................................................................................................................................................1
1.1 研究背景..............................................................................................................................................1
1.2 研究的目的及意义............................................................................................................................1
1.3 研究内容..............................................................................................................................................2
2 系统相关技术 .................................................................................................................................................3
2.1 Python ...................................................................................................................................................3
2.2 SQLite ...................................................................................................................................................3
2.3 系统使用的算法 ................................................................................................................................3
2.3.1 Haar 特征级联分类器 .........................................................................................................3
2.4.2 LBPH 算法 ..............................................................................................................................4
3 系统分析 ..........................................................................................................................................................6
3.1 系统概述..............................................................................................................................................6
3.2 功能需求分析.....................................................................................................................................6
3.3 可行性分析 .........................................................................................................................................7
3.3.1 技术可行性.............................................................................................................................7
3.3.2 操作可行性.............................................................................................................................7
3.3.3 经济可行性.............................................................................................................................7
4 系统详细设计 .................................................................................................................................................9
4.1 系统架构设计.....................................................................................................................................9
4.2 业务流程设计.....................................................................................................................................9
4.2.1 人员信息录入流程 ................................................................................................................9
4.2.2 人脸采集流程.......................................................................................................................10
4.2.3 人脸识别流程......................................................................................................................11
4.2.4 签到流程...............................................................................................................................12
4.3 详细功能设计 ..................................................................................................................................13
4.3.1 登记信息 ................................................................................................................................13
4.3.2 人脸采集处理训练.............................................................................................................14
4.3.3 签到 ........................................................................................................................................15
4.3.4 查看签到记录......................................................................................................................16
4.3.5 训练 ........................................................................................................................................16
4.3.6 图片处理...............................................................................................................................17
5 设计结果 ........................................................................................................................................................19
5.1 信息登记实现 ..................................................................................................................................19
5.2 采集人脸信息实现 .........................................................................................................................20
5.3 提交训练实现 ..................................................................................................................................21
5.4 签到实现 ...........................................................................................................................................23
5.5 签到记录实现 ..................................................................................................................................24
6 系统测试 ........................................................................................................................................................26
6.1 测试概述 ...........................................................................................................................................26
6.2 用例测试 ...........................................................................................................................................26
6.2.1 新用户信息登记用例测试...............................................................................................26
6.2.2 人脸识别签到用例测试 ...................................................................................................26
6.2.3 查看并导出签到记录用例测试......................................................................................27
7 结论 .................................................................................................................................................................28
7.1 结论.....................................................................................................................................................28
7.2 展望.....................................................................................................................................................28
参考文献.............................................................................................................................................................30
致谢......................................................................................................................................................................31
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