基于人脸识别的课堂考勤系统设计与实现-控制工程专业论文.docx
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Abstract
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The classroom is the main place for student studying and obtaining knowledge. It is also a main channel for student to improve their abilities. A scientific classroom attendance system can ensure that various teaching programs are implemented effectively.The effective classroom attendance system can create a good atmosphere for learning and a good class style for enhancing student’s organization and discipline. And the effective classroom attendance system is also one of important measures for ensuring the stability of the teaching order, improving the quality of teaching and learning activities.
This study researches on classroom attendance system based on face recognition. By using of information technology and face recognition, abandon artificial statistical management completely and overcome the nonstandard behavior in the traditional classroom attendance system, a novel classroom attendance system is proposed. It can solve the problem in school attendance management work, and provide scientific basis for implementing the schools classroom attendance regulation
The main work and innovation can be shown as follows:
(1)A novel face recognition algorithm based on sparse representation and neural network is proposed. Aim to improve the speed in face recognition process, according to compressed sensing theory, wavelet transform is used to sparsing image, then a BP artificial neural network is used to train face image. A fewer elements can express the original face image, not only to reduce the dimension of face image, and filter out the local light, expression details and other facial high-frequency information. as a result, a low-dimensional and suitable face image is obtained, and the experiment has shown that the face recognition speed is improved. (2)A complete student classroom attendance system based on face recognition is designed. By collecting face images through a camera, and face image preprocessing, a human f
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