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“刷掌(zhǎng)支付”上线:六大生物识别技(jì)术还有哪些你不(bú)知道的优缺点?
来源(yuán): | 作(zuò)者:energy-448 | 发布时(shí)间: 760天(tiān)前 | 945 次浏览 | 分享到:
当前单一的生物识别技术(shù)各有优缺(quē)点,在应(yīng)用上难免会出现一些问题,需要配(pèi)合(hé)人脸识(shí)别,指静脉,指(zhǐ)纹(wén)等识别方式共用。

近期“微信刷掌”产品正式(shì)落地北京,乘(chéng)客在大兴(xìng)机场线可以(yǐ)体验刷掌过闸乘车(chē)。刷(shuā)掌支付采用(yòng)的是“掌纹(wén)+掌静脉(mò)”识别技术,在促进效(xiào)率提(tí)升的同时,也极大地简化(huà)了用户操(cāo)作。

生(shēng)物识别技术是目前最为方便与安全的识别技术,利用生(shēng)物识别技(jì)术进行身份认定,安全、可靠、准确。金融科技已进入合规发展关键时期,数(shù)字化创新持(chí)续推进,人工智能、生物识别等新兴技(jì)术(shù)在第(dì)三方支付领域的应(yīng)用(yòng)更(gèng)为广泛。随着移动支付、信息安全及智能设备的快速(sù)发展,生物(wù)识别技术(shù)的发展(zhǎn)前景更为广阔。在提升支付安全性的同(tóng)时,也(yě)为现金、银(yín)行卡、手机支付之外带来了另(lìng)一种支付方式,或成为未来金融科技发展(zhǎn)的新风口。

近年来,生物(wù)识别技术日趋成熟(shú),应用(yòng)场(chǎng)景(jǐng)不(bú)断拓展,市场规模持续(xù)扩张。在市场需求和技术发展的双重推(tuī)动下,生物识别技术在全(quán)球范围取得(dé)了快速的(de)发展(zhǎn),全球生物(wù)识别市场规模(mó)从(cóng)2016年的126亿(yì)美(měi)元上升至2021年的286亿美元,年均复合增长率为17.8%。《2022-2026年生物识(shí)别技术行业发展研究报告》显示(shì),在未(wèi)来(lái)五年(2022-2026年),生物识别(bié)设备的综合性年增长将率将达到21.3%,生物(wù)识别市场正处在(zài)快速(sù)增长当中。

中国(guó)电(diàn)子银行(háng)网盘点了目前最为常见(jiàn)的生物识别(bié)技术:指(zhǐ)纹(wén)识(shí)别(bié)、人脸(liǎn)识别(bié)、掌(zhǎng)纹(wén)识别、语音(声纹(wén))识别和静脉识别等,带你简单了解6大生物识别技术的(de)优缺点。

指纹识别:最(zuì)早(zǎo)发展,技术成(chéng)熟

我国生物特征识别行业最早发(fā)展的是(shì)指(zhǐ)纹(wén)识别技术(shù),基本与国外同步,早在80年代初(chū)就(jiù)开始了研(yán)究,并掌握(wò)了核心(xīn)技术(shù),产业发展相对比较成熟。

资料显示,每个指(zhǐ)纹都有几个(gè)独(dú)一无二可(kě)测量的特征点,每个特征点都有大约七个特征,人们(men)的十个手指产生最少4900个独立(lì)可测量的特征。指纹识别(bié)技术通过分(fèn)析指纹可(kě)测量的特征点,从中抽取特(tè)征(zhēng)值,然后进行认证(zhèng)。虽(suī)然每个人的指纹识别都是独一无二(èr)的,但并不适(shì)用于(yú)每一(yī)个行业、每一(yī)个(gè)人(rén)。例如,双手长期徒手作(zuò)业的人们便会为指纹识别而烦恼,他们的手指(zhǐ)若有丝(sī)毫破损或干湿环(huán)境里、沾有异物则指纹识别(bié)功(gōng)能要失效了。另(lìng)外(wài)对于(yú)在严寒区域或者严寒气候下,亦或者人们需要长(zhǎng)时(shí)间戴手套(tào)的环境当中(zhōng),这也(yě)将使得指纹识别变得不那么便(biàn)利(lì)。

人脸(liǎn)识别(bié):应(yīng)用最广(guǎng)泛,使用最便捷

人脸(liǎn)识别是基于人的脸部特征信息进行身份识别的一(yī)种生物识别技术。用摄像机(jī)或摄像(xiàng)头(tóu)采集含有人脸的图像或(huò)视(shì)频流,并自动在图像中检测和跟踪人脸,进(jìn)而(ér)对(duì)检测到(dào)的人脸进行脸部的一系列相(xiàng)关(guān)技(jì)术。人(rén)脸识(shí)别的优势主要体现在四方面:

1、自然性。所谓的自然(rán)性(xìng)是指通(tōng)过观察(chá)就可以比较(jiào)人脸来区分和确认身(shēn)份;

2、非(fēi)强(qiáng)制(zhì)性。被识(shí)别的人脸(liǎn)图像信(xìn)息可以主(zhǔ)动获取而不被被测个体(tǐ)察觉,对(duì)个体是隐蔽的;

3、非接触性。相比较(jiào)其他生物识别技术(shù)而言,人脸识(shí)别是非接触的(de),用户不需要和设备直接接触;

4、并发(fā)性(xìng)。在实际应用场景中,人脸识(shí)别技(jì)术(shù)可以(yǐ)进行多个人(rén)脸的分(fèn)拣、判断(duàn)及识别。

人脸识别虽然具有较高的便利性,但是其安全性也相(xiàng)对较弱一些。其识(shí)别准确率比如会(huì)受到环境的光线、识别距离等(děng)多方面因素影响。

值得一提的(de)是,全国(guó)信息(xī)安全标准化技(jì)术委员会秘书处(chù)在5月下旬发布了《网络(luò)安全标准(zhǔn)实践指(zhǐ)南(nán)——人脸识别(bié)支付场景个人信息保(bǎo)护安(ān)全要求(征求意见稿)》,正(zhèng)式(shì)对外公开征求意见,对人(rén)脸识别支付场景(jǐng)、个人信息保(bǎo)护(hù)和人脸识别数据收集(jí)都提出了相应的要求。

掌纹识别:类似指纹识别,但不适合移动设备

掌(zhǎng)纹是指手腕与手(shǒu)指(zhǐ)之间的(de)手(shǒu)掌(zhǎng)表面上的各种纹(wén)线特征,如(rú)主线、皱纹、细小的纹理、脊末梢、分叉点等。掌(zhǎng)纹的形态由遗传基因(yīn)控制,即使由于某种原(yuán)因表皮剥落(luò),新(xīn)生的掌纹纹(wén)线仍保持(chí)着原来(lái)的结构。每(měi)个人的掌纹纹线都不一样,即使是孪生同胞(bāo),他们(men)的(de)掌纹(wén)也只(zhī)是比较相似(sì),而不会(huì)完全一样。并且在低分辨率(lǜ)和低质量(liàng)的图像(xiàng)中仍能够清晰(xī)辨认。

掌纹识别与指纹识别非常类似,其有着与指纹类似的优缺点。相对于指(zhǐ)纹识别(bié)来(lái)说,掌纹识别所(suǒ)需的设备体(tǐ)积要更大,所以(yǐ)并不适合移动设备。

虹膜识别:安全性最高(gāo),普及度较低

虹膜识别技术被认(rèn)为是生物识别技术中最精确的(de)技术(shù)之一。虹膜识别还具(jù)有唯一性、稳定(dìng)性、不可(kě)复制性、活体检测等特(tè)点,综合安全性能(néng)上(shàng)占据绝对(duì)优势(shì),安(ān)全等级来说是目前最(zuì)高(gāo)的(de)。

虹(hóng)膜识别(bié)技(jì)术有几个特点:第一,独特性(xìng),每个人的(de)虹膜都是独特的,甚至(zhì)双(shuāng)胞(bāo)胎(tāi)都不一样;第(dì)二是(shì)稳定(dìng)性,其特征在整个生命过程中保(bǎo)持不变,不易受外部因素改变(biàn)。第三,它是非接(jiē)触性的,可以(yǐ)在没(méi)有接(jiē)触和(hé)一定距离(lí)的情况下被识别。在疫情期间,非接(jiē)触式的识别(bié)方式也更为安全、便捷。

目前,虹(hóng)膜识别(bié)技术以其显著的优势已经广泛应用于国内安防(fáng)、金融、服务等领域。

虽然(rán)虹膜识(shí)别(bié)有很多的优势,但其(qí)对于(yú)识别(bié)距离的要求比较高,同时(shí)虹膜(mó)识别的应(yīng)用(yòng)成(chéng)本也与其技术难度成正比(bǐ),相比(bǐ)其他的识别技术,成本要更高一些。这也在一定程度上阻碍其进入普通(tōng)消(xiāo)费类市场。

语音(声纹识别(bié):接受度高(gāo),已(yǐ)有(yǒu)银行布(bù)局

声纹识别又称为说话人(rén)识别,是从说话人(rén)发出的声音频谱图(tú)中(zhōng)提取身份特征信息和声纹特征,再把声信(xìn)号转换成电信号,用计算(suàn)机通过相关算法进(jìn)行比对(duì)识别的技术。与人脸、指纹(wén)和(hé)虹(hóng)膜识别相比,声(shēng)纹识别有着诸多优(yōu)势,比如声(shēng)纹语料(liào)收集方式自然,无须(xū)进行眨眼、摆(bǎi)动(dòng)脸部等特定动作,不受光线或隐私(sī)等特定场景的约束(shù),人们接受度更高;声纹识别(bié)可以随(suí)机改变朗读内容,即便曾在网上或其他地方留下语音信息,也不易(yì)被复制或盗用。

据(jù)报道,声纹(wén)识(shí)别已经在部分银行开始使(shǐ)用:登录(lù)手(shǒu)机银行APP,开启声纹验证,用户(hù)只要准确说出(chū)随机动态码,系统录(lù)制(zhì)语音信息、验证声纹及随机动态(tài)码后,就能进行转账、支付等交(jiāo)易。

静脉识(shí)别:速度(dù)快、产品难(nán)以小(xiǎo)型化使得市场运用低

静脉(mò)识别(bié)即使用近红外(wài)线读取(qǔ)静脉模式,再与存储的(de)静(jìng)脉模式进行比较,从而对个人进行身份(fèn)鉴定。静脉识别又分为指静脉识别和(hé)掌静脉识(shí)别,前者反应(yīng)速度快,后者安全系数更高(gāo),但二者都具备精确(què)度高(gāo)、活体识别的优势。

由(yóu)于静脉隐藏于(yú)皮(pí)肤内部,并且只有流动中的(de)血液才可吸收特定波长光线、形成清晰的图像,所以,假(jiǎ)手模型(xíng)或手(shǒu)部图像是无(wú)法通(tōng)过(guò)静脉识别的(de)。可以说,静脉(mò)识(shí)别是“指纹识别2.0”,不仅克服了传统指纹识别速度慢的缺点,也不受手部表(biǎo)皮状(zhuàng)态影响,还无需接触。目前,静脉识别主(zhǔ)要应用于门禁和安防系统。

虽然静脉识别具有高(gāo)度防(fáng)伪(wěi)、简便易用(yòng)、快速识别(bié)及高度准确四大特点,但其缺点也较为(wéi)突出,受限(xiàn)于模块体积大、功耗(hào)高等(děng)不(bú)足无法大规模商用。

随着(zhe)时代(dài)发展和技术(shù)不断进步,生物识别技术将(jiāng)迎来新的变化和需(xū)求,生物(wù)识(shí)别技术与互联网、物联网的交集将(jiāng)成为各行业的着力点。当前单一的生(shēng)物识别技(jì)术各有优缺点,在(zài)应用(yòng)上难免会出现一些问题。

所以,在一些安全(quán)等级要求较高的(de)应用场景当中,往(wǎng)往会(huì)采用两种(zhǒng)甚至两种以上的生(shēng)物识别技(jì)术进行验(yàn)证。物联网时(shí)代,越来(lái)越多的(de)事物(wù)正在或(huò)将要被纳入数字网络中。在享受(shòu)便利(lì)的同时,我们也要珍惜自己的“身体密码”,保护好属于自己的生(shēng)物特征数据。

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