QQ登录

只需要一步,快速开始

 注册地址  找回密码
查看: 4176|回复: 2
打印 上一主题 下一主题

Biometrics(生物统计学)

[复制链接]
字体大小: 正常 放大
sunstar        

11

主题

2

听众

57

积分

升级  54.74%

该用户从未签到

新人进步奖

跳转到指定楼层
1#
发表于 2005-4-24 17:22 |只看该作者 |倒序浏览
|招呼Ta 关注Ta
<P align=center><B>Biometrics

</B>
<p>
<P>u       <B>Biometrics:</B>
<p>
<p>
<P>Biometrics refers to the automatic identification of a person based on his/her physiological or behavioral characteristics. This method of identification is preferred over traditional methods involving passwords and PIN numbers for various reasons: (i) the person to be identified is required to be physically present at the point-of-identification; (ii) identification based on biometric techniques obviates the need to remember a password or carry a token. With the increased use of computers as vehicles of information technology, it is necessary to restrict access to sensitive/personal data. By replacing PINs, biometric techniques can potentially prevent unauthorized access to or fraudulent use of ATMs, cellular phones, smart cards, desktop PCs, workstations, and computer networks. PINs and passwords may be forgotten, and token based methods of identification like passports and driver\'s licenses may be forged, stolen, or lost. Thus biometric systems of identification are enjoying a renewed interest. Various types of biometric systems are being used for real-time identification, the most popular are based on face recognition and fingerprint matching. However, there are other biometric systems that utilize iris and retinal scan, speech, facial thermograms, and hand geometry.
<p>
<p>
<P>A biometric system is essentially a pattern recognition system which makes a personal identification by determining the authenticity of a specific physiological or behavioral characteristic possessed by the user. An important issue in designing a practical system is to determine how an individual is identified. Depending on the context, a biometric system can be either a verification (authentication) system or an identification system.
<p>
<p>
<P>u       <B>Verification vs Identification:</B>
<p>
<p>
<P>There are two different ways to resolve a person\'s identity: verification and identification. Verification (<I>Am I whom I claim I am?</I>) involves confirming or denying a person\'s <I>claimed identity</I>. In identification, one has to establish a person\'s identity (<I>Who am I?</I>). Each one of these approaches has its own complexities and could probably be solved best by a certain biometric system.
<p>
<p>
<P>u       <B>Applications:</B>
<p>
<p>Biometrics is a rapidly evolving technology which has been widely used in forensics such as criminal identification and prison security. Recent advancements in biometric sensors and matching algorithms have led to the deployment of biometric authentication in a large number of civilian applications. Biometrics can be used to prevent unauthorized access to ATMs, cellular phones, smart cards, desktop PCs, workstations, and computer networks. It can be used during transactions conducted via telephone and Internet (electronic commerce and electronic banking). In automobiles, biometrics can replace keys with key-less entry and key-less ignition.
zan
转播转播0 分享淘帖0 分享分享0 收藏收藏0 支持支持1 反对反对0 微信微信
dianjing        

2

主题

4

听众

230

积分

升级  65%

  • TA的每日心情

    2014-9-20 13:54
  • 签到天数: 56 天

    [LV.5]常住居民I

    回复

    使用道具 举报

    21

    主题

    7

    听众

    2309

    积分

    升级  10.3%

  • TA的每日心情
    奋斗
    2016-5-8 10:42
  • 签到天数: 394 天

    [LV.9]以坛为家II

    新人进步奖

    群组Matlab讨论组

    群组2012第三期美赛培训

    群组第二届数模基础实训

    群组MCM优秀论文解析专题

    回复

    使用道具 举报

    您需要登录后才可以回帖 登录 | 注册地址

    qq
    收缩
    • 电话咨询

    • 04714969085
    fastpost

    关于我们| 联系我们| 诚征英才| 对外合作| 产品服务| QQ

    手机版|Archiver| |繁體中文 手机客户端  

    蒙公网安备 15010502000194号

    Powered by Discuz! X2.5   © 2001-2013 数学建模网-数学中国 ( 蒙ICP备14002410号-3 蒙BBS备-0002号 )     论坛法律顾问:王兆丰

    GMT+8, 2025-7-24 03:27 , Processed in 0.634982 second(s), 63 queries .

    回顶部