面部识别技术正越来越多地被应用于各个领域。现在，一种被称为面部检测的技术正在进入一个新的领域：广告业务。面部识别技术是用来识别特定个体的，而面部检测系统的目的是检测个人的存在，并试图预测有关个人的一些信息。在美国，目前这种系统正在一些商店进行测试。
　　Facial recognition technology is increasingly being used today in many places in the United States and overseas. Such systems use machine?learning tools to scan faces in an attempt to recognize particular individuals.
　　Many police agencies across the world have long used facial recognition technology to search for and help catch criminals. The technology has also been used at some US airports to help confirm the identity of passengers. It is also used to unlock phones or other electronic devices， and in some cases， even cars. Some robots use facial recognition to recognize the people they are communicating with.
　　Now， a similar technology—known as facial detection—is entering a new field： the business of advertising. Facial recognition technology is meant to identify a specific individual. Facial detection systems aim to detect the presence of a person and try to predict some facts about him or her. In the United States， such systems are currently being tested in a small number of stores.
　　Businesses use cameras set up inside the stores or public area. The cameras scan the faces of individuals and predict their age and sex. Some systems are also designed to judge a persons emotions. That information can then be used to target people with real?time advertisements on video screens during their visit to the store.
　　One facial detection system， developed by a company called Mood Media， aims to judge a persons “happiness” or “fear” level. Businesses could use such information to get real?time reactions from people as they look at products or video ads in the store. Such a system could also be used as part of a companys efforts to test the popularity of specific products.
　　Another company， Cineplex Digital Media， showed off a camera?powered system designed for use in retail businesses， on the street or at bus stops. The company says its product can detect things like whether someone is wearing eyeglasses or has facial hair. That information could then be used to target those people with ads for new glasses or shaving equipment.
　　Some privacy groups have criticized the use of such facial detection systems while supporters of the technology say it could improve the buyers experience by drawing attention to products they might like or by offering them special deals.
　　Reading Check 　　1.What does the second paragraph mainly tell us？
　　A.The use of facial recognition technology.
　　B.The origin of facial recognition technology.
　　C.The advantages of facial recognition technology.
　　D.The process of using facial recognition technology.
　　2.What can the facial detection system developed by Mood Media do？
　　A.Recognize whether a persons hair is real.
　　B.Test the popularity of facial detection system.
　　C.Detect whether someone is wearing eyeglasses.
　　D.Judge how a person reacts to the products or video ads.
　　Language Study
　　Ⅰ.Important vocabulary in the text
　　1.recognition n. 识别;辨认
　　2.individual n. 个人
　　3.confirm v. 确认
　　4.similar adj. 相似的
　　5.detection n. 探测
　　6.reaction n. 反应
　　7.popularity n. 受欢迎;普及
　　8.privacy n. 隐私;私密
　　9.criticize v. 批评
　　Ⅱ.Difficult sentence
　　Some privacy groups have criticized the use of such facial detection systems while supporters of the technology say it could improve the buyers experience by drawing attention to products they might like or by offering them special deals.一些隱私保护组织批评了这种面部检测系统的使用，而该技术的支持者表示，该技术可以通过吸引人们对他们可能喜欢的产品的关注，或者通过提供特惠来改善买家的体验。
　　【点石成金】本句总体上是while引导的并列句。Some privacy groups have criticized...是第一个分句，supporters of the technology say...是第二个分句，it could improve...是宾语从句，
　　they might like是限制性定语从句。