1、 毕毕 业业 论论 文文 论文题目 人像识别与认证图像的采集 导师姓名 作者姓名 准考证号 作者单位 完成时间 2012 年 08 月 21 日 摘 要 当今社会和经济的快速发展，使得安全、快速并准确地进行身份识别变得越来越重 要。传统的身份验证方法多采用密码，这种方法存在两个缺点：密码容易忘记；密码存 在被别人盗用的危险。由于生物特征是人体的内在属性，具有很强的自身稳定性和个体 差异性，所以人体的生物特征是进行身份识别最理想的依据。使用人体生物特征识别技 术进行身份验证，克服了使用密码的缺点。基于人像的身份认证是生物特征身份认证的 一种方式，在抗干扰性、精确度、代价和性能等指标上要优于其它生
2、物特征身份认证方 式。 利用计算机分析人脸图像,进而从中提取出有效的识别信息,用来“辨认”身份。其 应用领域广泛,近年来,人脸和面部表情识别已经吸引了更多科研人员的注意。 本系统功能包括：摄像头软件驱动、人像抓拍、图像文件存取，简单比较功能。采 用 Visual C+ 6.0 作为开发工具，运行环境为 Window XP。 系统通过调试 DirectShow 实现对视频设备的驱动，并对瞬时视频实现捕捉，然后 依据BMP文件格式，将捕获的人像图片保存为BMP位图文件，并存在指定目录中。采用 欧氏距离的算法实现两张人像的比较，再将比较的结果输出到界面上。其中界面的构 建完全基于 VC 开发，具有直
3、观性。 关键词: : 人像识别；DirectShow；BMP 位图文件；VC+ Abstract Nowadays, the rapid development of society and economy makes safe, fast and accurate identity becomes increasingly important. Traditional authentication method often uses a password, but this approach has two disadvantages: the password easy to forget
4、 and dangers of piracy to others. Because the biometric is the intrinsic property of the human body, with strong own stability and individual differences, the bodys biometric identity is the ideal basis of authentication. Using human biometric technology for authentication overcome the shortcoming o
5、f using a password. Authentication based on the portrait is one of the biometric authentication, as far as indicators, such as immunity, accuracy, cost and performance and so on, is concerned, it is better than other biometric authentication mode. We use a computer to analyze the human face and then
6、 extract valid identification information, aiming to “recognize“ identity. Its application areas are wide and in recent years, the face and facial expression recognition have attracted more attention from researchers. This system features include: the camera software driven, portrait shoot, image and file access, simple comparison capabilities. It use Visual C+ 6.0 as its development tool and its running environment is Wi
