{"id":13726,"date":"2024-12-12T16:20:22","date_gmt":"2024-12-12T08:20:22","guid":{"rendered":"https:\/\/hfsecurity.cn\/?p=13726"},"modified":"2024-12-12T16:20:23","modified_gmt":"2024-12-12T08:20:23","slug":"optical-fingerprint-scanner-vs-ultrasonic-fingerprint-scanner","status":"publish","type":"post","link":"https:\/\/hfsecurity.cn\/es\/escaner-optico-de-huellas-dactilares-frente-a-escaner-ultrasonico-de-huellas-dactilares\/","title":{"rendered":"Esc\u00e1ner \u00f3ptico de huellas dactilares frente a esc\u00e1ner ultras\u00f3nico de huellas dactilares"},"content":{"rendered":"

Los esc\u00e1neres de huellas dactilares \u00f3pticos y ultras\u00f3nicos son dos formas de verificar la identidad. En este cap\u00edtulo, los presentaremos desde diferentes \u00e1ngulos, como principios, m\u00e9todos de trabajo, comparaci\u00f3n de rendimiento, etc.<\/p>\n\n\n\n

\u00bfQue son?<\/h2>\n\n\n\n

Esc\u00e1ner \u00f3ptico de huellas dactilares<\/h3>\n\n\n\n
La tecnolog\u00eda del esc\u00e1ner \u00f3ptico de huellas dactilares consiste en obtener la imagen de la huella dactilar a trav\u00e9s de un sensor \u00f3ptico, lo que equivale a tomar una fotograf\u00eda de la huella dactilar. El sensor emitir\u00e1 luz sobre la huella dactilar y capturar\u00e1 la imagen de la huella dactilar reflejando la luz y midiendo la superficie.<\/p>\n\n\n\n

Esc\u00e1ner ultras\u00f3nico de huellas dactilares<\/h3>\n\n\n\n
Los esc\u00e1neres de huellas dactilares ultras\u00f3nicos utilizan tecnolog\u00eda ultras\u00f3nica. El sensor emite pulsos ultras\u00f3nicos. Cuando las ondas ultras\u00f3nicas encuentran las l\u00edneas de las yemas de los dedos, se dispersan y se refractan. El sensor recibe la informaci\u00f3n ultras\u00f3nica reflejada y extrae las caracter\u00edsticas de las huellas dactilares analizando los cambios en la se\u00f1al ultras\u00f3nica.<\/p>\n\n\n\n
Marque aqu\u00ed para tipos de esc\u00e1ner de huellas dactilares<\/a><\/p>\n\n\n\n

\u00bfC\u00f3mo funcionan?<\/h2>\n\n\n\n
El principio de funcionamiento del esc\u00e1ner \u00f3ptico de huellas dactilares y del esc\u00e1ner capacitivo ultras\u00f3nico de huellas dactilares es el mismo. Obtienen im\u00e1genes de huellas dactilares, las procesan y forman plantillas de caracter\u00edsticas de imagen para su comparaci\u00f3n o reconocimiento. Sin embargo, los principios son diferentes.<\/p>\n\n\n\n
\n
Adquisici\u00f3n<\/li>\n\n\n\n
An\u00e1lisis de im\u00e1genes<\/li>\n\n\n\n
Plantilla de funci\u00f3n de imagen<\/li>\n\n\n\n
Comparaci\u00f3n<\/li>\n<\/ul>\n\n\n\n
$\"Esc\u00e1ner$
Esc\u00e1ner de huellas dactilares FAP30 Linux<\/figcaption><\/figure>\n\n\n\n
Comparaci\u00f3n de rendimiento<\/h2>\n\n\n\n
Velocidad de escaneo:<\/h3>\n\n\n\n
Velocidad de escaneo:<\/h4>\n\n\n\n
La velocidad de escaneo de un esc\u00e1ner \u00f3ptico de huellas dactilares se puede completar en 1 segundo, porque el esc\u00e1ner comienza a capturar la imagen de la huella dactilar cuando entra en contacto con el sensor;<\/p>\n\n\n\n
El esc\u00e1ner ultras\u00f3nico de huellas dactilares tarda un poco en capturar la huella dactilar, lo que requiere crear una imagen 3D detallada para usted, pero el tiempo se completa b\u00e1sicamente en 1 segundo;<\/p>\n\n\n\n
Velocidad de procesamiento de datos:<\/h4>\n\n\n\n
Cuando el esc\u00e1ner \u00f3ptico de huellas dactilares utiliza un mejor algoritmo, el an\u00e1lisis, la extracci\u00f3n y la comparaci\u00f3n de las huellas dactilares suelen completarse en 1 o 2 segundos.<\/p>\n\n\n\n
El esc\u00e1ner ultras\u00f3nico de huellas dactilares necesita procesar datos 2D y 3D, lo que lleva una cierta cantidad de tiempo para completarse. Con la optimizaci\u00f3n continua de los algoritmos de huellas dactilares, la velocidad de procesamiento de los esc\u00e1neres ultras\u00f3nicos de huellas dactilares tambi\u00e9n puede completarse en 1 ~ 2 segundos.<\/p>\n\n\n\n
\n<\/iframe>\n<\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Precisi\u00f3n y confiabilidad<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Exactitud:<\/h4>\n\n\n\n<p>La precisi\u00f3n de los esc\u00e1neres \u00f3pticos de huellas dactilares depende en gran medida de la calidad de la imagen, las condiciones de iluminaci\u00f3n y la resoluci\u00f3n del sensor. Los factores externos, como que el dedo est\u00e9 en mal estado y est\u00e9 grasiento, manchado de agua o sucio, afectar\u00e1n la precisi\u00f3n de la huella dactilar;<\/p>\n\n\n\n<p>Los ultrasonidos utilizan tecnolog\u00eda ultras\u00f3nica para capturar una imagen 3D m\u00e1s completa e incluso pueden capturar huellas dactilares a trav\u00e9s de ciertos materiales. Por lo tanto, no se ve afectado por factores externos y tiene una mayor precisi\u00f3n que los esc\u00e1neres \u00f3pticos de huellas dactilares;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Fiabilidad:<\/h4>\n\n\n\n<p>Los esc\u00e1neres \u00f3pticos de huellas dactilares suelen ser fiables cuando todos los entornos son adecuados; los esc\u00e1neres ultras\u00f3nicos de huellas dactilares son fiables en cualquier caso y no se ven afectados por ning\u00fan entorno.<\/p>\n\n\n\n<p>Resumen comparativo de precisi\u00f3n y confiabilidad<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Caracter\u00edsticas de seguridad<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><\/td><td>Esc\u00e1ner \u00f3ptico de huellas dactilares<\/td><td>Esc\u00e1ner ultras\u00f3nico de huellas dactilares<\/td><\/tr><tr><td>Exactitud<\/td><td>Afectado por el medio ambiente, mal entorno, baja precisi\u00f3n.<\/td><td>No se ve afectado por el medio ambiente, mayor precisi\u00f3n.<\/td><\/tr><tr><td>Fiabilidad<\/td><td>Afectado por el medio ambiente, mal entorno, baja confiabilidad.<\/td><td>No se ve afectado por el medio ambiente, mayor confiabilidad.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Tiene diferentes opciones para diferentes condiciones y diferentes necesidades.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Caracter\u00edsticas de seguridad<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Captura de imagen:<\/h3>\n\n\n\n<p>Las huellas dactilares recogidas por los esc\u00e1neres \u00f3pticos son im\u00e1genes 2D, por lo que son f\u00e1cilmente enga\u00f1adas por im\u00e1genes de huellas dactilares de alta resoluci\u00f3n o im\u00e1genes impresas;<\/p>\n\n\n\n<p>Los esc\u00e1neres de huellas dactilares ultras\u00f3nicos capturan im\u00e1genes en 3D, que tienen m\u00e1s puntos de caracter\u00edsticas e informaci\u00f3n m\u00e1s detallada, lo que las hace dif\u00edciles de copiar o robar.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Detecci\u00f3n en vivo:<\/h3>\n\n\n\n<p>No todos los esc\u00e1neres \u00f3pticos de huellas dactilares tienen funci\u00f3n de detecci\u00f3n en vivo.<\/p>\n\n\n\n<p>Los esc\u00e1neres de huellas dactilares ultras\u00f3nicos ahora se utilizan ampliamente para la detecci\u00f3n en vivo, lo que puede detectar eficazmente dedos fraudulentos.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><\/td><td>Esc\u00e1ner \u00f3ptico de huellas dactilares<\/td><td>Esc\u00e1ner ultras\u00f3nico de huellas dactilares<\/td><\/tr><tr><td>Captura de imagen<\/td><td>Imagen 2D, f\u00e1cilmente falsificable<\/td><td>Imagen 3D, no se falsifica f\u00e1cilmente<\/td><\/tr><tr><td>Detecci\u00f3n de vitalidad<\/td><td>Limitado, depende de diferentes modelos.<\/td><td>Confiable<\/td><\/tr><tr><td>Detecci\u00f3n de falsificaciones<\/td><td>Enga\u00f1ados con huellas dactilares falsas<\/td><td>No es f\u00e1cil de enga\u00f1ar<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Comparaci\u00f3n de ventajas y desventajas<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Ventajas:<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Esc\u00e1ner \u00f3ptico:<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\">Bajo costo: <\/h5>\n\n\n\n<p>La composici\u00f3n y el hardware de los esc\u00e1neres \u00f3pticos de huellas dactilares son relativamente maduros y completos, y el costo general es menor que el de los esc\u00e1neres ultras\u00f3nicos de huellas dactilares. <\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Ampliamente utilizado: <\/h5>\n\n\n\n<p>Para el reconocimiento de identidad y asistencia com\u00fan, los esc\u00e1neres de huellas dactilares \u00f3pticos se utilizan m\u00e1s ampliamente que los esc\u00e1neres de huellas dactilares ultras\u00f3nicos.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Esc\u00e1ner ultras\u00f3nico de huellas dactilares<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\">Antisuciedad y ara\u00f1azos: <\/h5>\n\n\n\n<p>El esc\u00e1ner ultras\u00f3nico de huellas dactilares utiliza tecnolog\u00eda ultras\u00f3nica y no se ve afectado por la suciedad ambiental.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"> Adaptabilidad: <\/h5>\n\n\n\n<p>No es necesario levantar completamente el sensor, alta sensibilidad de contacto<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Desventajas<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Esc\u00e1ner \u00f3ptico de huellas dactilares:<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\">Contacto: <\/h5>\n\n\n\n<p>Alta sensibilidad de contacto, el dedo debe tocar completamente el sensor para obtener la huella digital.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Ambiente: <\/h5>\n\n\n\n<p>Se ve f\u00e1cilmente afectado por el entorno y el estado de las huellas dactilares.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Falsificaci\u00f3n:<\/h5>\n\n\n\n<p>Detecci\u00f3n de baja vitalidad, f\u00e1cil de falsificar y enga\u00f1ar.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Esc\u00e1ner ultras\u00f3nico de huellas dactilares<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\">Alto costo del equipo:<\/h5>\n\n\n\n<p>El nivel de hardware y el algoritmo de software son relativamente caros;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Normas de los esc\u00e1neres de huellas dactilares<\/h2>\n\n\n\n<p><br>Ya sea un esc\u00e1ner de huellas dactilares ultras\u00f3nico o un esc\u00e1ner de huellas dactilares \u00f3ptico, debe cumplir con el protocolo est\u00e1ndar de huellas dactilares.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>ISO\/IEC 19794-2:<br>Formato de intercambio de datos para im\u00e1genes y plantillas de huellas dactilares;<\/li>\n\n\n\n<li>ISO\/IEC 30107-1<br>Proporciona un marco de evaluaci\u00f3n para que los sistemas biom\u00e9tricos resistan el fraude.<\/li>\n\n\n\n<li>Est\u00e1ndares de la Alianza FIDO<br>Desarrollado por FIDO Alliance, proporciona est\u00e1ndares abiertos para la verificaci\u00f3n de identidad en l\u00ednea.<\/li>\n\n\n\n<li>Normas de pruebas de rendimiento biom\u00e9trico (NIST e ISO)<br>Proporciona requisitos est\u00e1ndar para diversos rendimientos de los dispositivos de esc\u00e1ner de huellas dactilares.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Solicitud<\/h2>\n\n\n\n<p>En la actualidad, el entorno de uso de los esc\u00e1neres de huellas dactilares ultras\u00f3nicos es relativamente peque\u00f1o, adecuado para tel\u00e9fonos inteligentes; el uso de esc\u00e1neres de huellas dactilares \u00f3pticos es m\u00e1s publicitario.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Control de acceso:<\/li>\n\n\n\n<li>Identificar Reconocimiento<\/li>\n\n\n\n<li>Tel\u00e9fono inteligente<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Futuro<\/h2>\n\n\n\n<p>Las barreras t\u00e9cnicas se ir\u00e1n derribando gracias a la mejora de la tecnolog\u00eda. La elecci\u00f3n entre un esc\u00e1ner \u00f3ptico de huellas dactilares o un esc\u00e1ner ultras\u00f3nico de huellas dactilares depende de la aplicaci\u00f3n.<\/p>\n\n\n\n<p>HFSECURIT es un proveedor de soluciones de identificaci\u00f3n biom\u00e9trica con 19 a\u00f1os de experiencia, acompa\u00f1ando la identificaci\u00f3n de su identidad.<\/p>","protected":false},"excerpt":{"rendered":"<p>Los esc\u00e1neres \u00f3pticos de huellas dactilares y los esc\u00e1neres ultras\u00f3nicos de huellas dactilares son una forma de verificar la identidad. Este cap\u00edtulo le presentar\u00e1 desde diferentes \u00e1ngulos, como los principios, los m\u00e9todos de trabajo, la comparaci\u00f3n de prestaciones, etc. Qu\u00e9 son\uff1f Esc\u00e1ner \u00f3ptico de huellas dactilares La tecnolog\u00eda del esc\u00e1ner \u00f3ptico de huellas dactilares consiste en obtener la imagen de la huella dactilar a trav\u00e9s de un sensor \u00f3ptico, lo que equivale a tomar [...]<\/p>","protected":false},"author":1,"featured_media":13729,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[538],"tags":[],"class_list":["post-13726","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry"],"yoast_head":"\n<title>Optical Fingerprint Scanner vs Ultrasonic Fingerprint Scanner - HFSecurity biometric solution<\/title>\n<meta name=\"description\" content=\"Optical fingerprint scanners and ultrasonic fingerprint scanners are both a way to verify identity. 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