首页
登录
职称英语
In the wake of 11 September, Visionics, a leading manufacturer, issued a fac
In the wake of 11 September, Visionics, a leading manufacturer, issued a fac
游客
2025-03-29
20
管理
问题
In the wake of 11 September, Visionics, a leading manufacturer, issued a fact sheet explaining how its technology could enhance airport security. They called it " protecting civilization from the faces of terror". The company’s share price skyrocketed, as did the stocks of other face-recognition companies, and airports across the globe began installing the software and running trials.
As the results start to come in, however, the gloss(光滑表面)is wearing off. No matter what you might have heard about face-recognition software, Big Brother it ain’t.
The concern was based largely on an independent assessment of face-recognition systems carried out in 2000 in the U. S. by the Department of Defense. These tests found that to catch 90 percent of suspects at an airport, face-recognition software would have to raise a huge number of false alarms. One in three people would end up being dragged out of the line and that’s assuming everyone looks straight at the camera and makes no effort to disguise himself. Results from the recent airport trials would seem to justify that concern.
Most face-recognition systems use some kind of geometric technique to translate a picture of a face into a set of numbers that capture its characteristics. Once it has identified these boundaries, the software calculates their relative sizes and positions and converts this geometry into what Visionics calls a "faceprint". Feed the software a series of mug-shots(通缉犯), and it’ll calculate their faceprints. Then it can monitor live CCTV images for the faces of known suspects. When it finds a match, it raises an alarm.
Even if the system does manage to capture a face, the problems aren’t over. The trouble is that a suspect’s faceprint taken from live CCTV is unlikely to match the one in the database in every detail. To give themselves the best chance of picking up suspects, operators can set the software so that it doesn’t have to make an exact match before it raises the alarm. But there’s a price to pay: the more potential suspects you pick up, the more false alarms you get. You have to get the balance just right.
Despite the disappointing tests, some people insist that face-recognition technology is good enough to put terrorists off. After all the claims and counter-claims, with no one able to discern(洞察)the truth, the industry may soon have to face up to reality. [br] In the last paragraph, the author points out that______.
选项
A、anyway, the face-recognition technology is good enough to frighten the terrorists
B、the industry will have to recognize the real situation and work hard to improve the technology
C、all the claims are premature
D、we must not expect too much
答案
B
解析
文章最后指出,企业界将不得不面对现实,即努力提高技术,改进产品质量。
转载请注明原文地址:http://tihaiku.com/zcyy/4017758.html
相关试题推荐
TheEuropeanCommissionissueda______decisiononOct.29permittinganalliance
AccordingtoRyle,thetaskofphilosophyistorestate"______misleadingexpres
Thepurchaserofthislorryisprotectedbythemanufacturer’swarrantythathe
Anairof______surroundedtheeventsleadinguptohisresignation.A、mythB、dep
Onlytwoyearsago,areportthattwo-thirdsofleadingAmericanuniversitie
Onlytwoyearsago,areportthattwo-thirdsofleadingAmericanuniversitie
OnehundredandthirteenmillionAmericanshaveatleastonebank-issuedcre
OnehundredandthirteenmillionAmericanshaveatleastonebank-issuedcre
OnehundredandthirteenmillionAmericanshaveatleastonebank-issuedcre
OnehundredandthirteenmillionAmericanshaveatleastonebank-issuedcre
随机试题
准备订单计划到计划完成之间的这段时间被称为()。A.订单接收时间 B.订单
下列叙述中,哪一项是正确的A.残胃癌是指胃癌手术5年后发生的胃癌 B.胃癌根治
对被审计单位在金融机构的有关存款需要予以冻结的,审计机关应当向()提出申请。A
高血压患者的饮食指导正确的说法是A.低盐饮食 B.高脂、高蛋白饮食 C.高胆
产气速率突然增长时须视情况采取必要措施。
无限公司又称为无限责任公司,其特点是()。A:由两个以上无限责任股东出资组成
将一个8厘米×8厘米×1厘米的白色长方体木块的外表面涂上黑色颜料,然后将其切成6
“劳心者治人,劳力者治于人,治于人者食人,治人者食于人。”反映了古代教育的()。
当下山巷道施工工作面遇到积水需要排出时,宜采用( )排水。A.潜水泵 B
某公司承建一座跨河城市桥梁,基础均采用φ1500mm钢筋混凝土钻孔灌注桩,设计为
最新回复
(
0
)