{"id":161192,"date":"2016-05-19T10:30:08","date_gmt":"2016-05-19T14:30:08","guid":{"rendered":"http:\/\/www.rochester.edu\/newscenter\/?p=161192"},"modified":"2022-12-06T14:38:02","modified_gmt":"2022-12-06T19:38:02","slug":"a-digital-rochester-cloak-to-fit-all-sizes-161192","status":"publish","type":"post","link":"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/","title":{"rendered":"A digital &#8216;Rochester Cloak&#8217; to fit all sizes"},"content":{"rendered":"<div class=\"embed-container\"><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/QF8qkoIWH64\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/div>\n<p>Using the same mathematical framework as the <strong><a href=\"https:\/\/www.rochester.edu\/newscenter\/watch-rochester-cloak-uses-ordinary-lenses-to-hide-objects-across-continuous-range-of-angles-70592\/\" target=\"_blank\" rel=\"noopener\">Rochester Cloak<\/a><\/strong>, researchers at the URochester have been able to use flat screen displays to extend the range of angles that can be hidden from view. Their method lays out how cloaks of arbitrary shapes, that work from multiple viewpoints, may be practically realized in the near future using commercially available digital devices.<\/p>\n<p>The Rochester researchers have shown a proof-of-concept demonstration for such a setup, which is still much lower resolution than the nearly perfect imaging achieved by the Rochester Cloak lenses. But with increasingly higher resolution displays becoming available, the \u201cdigital integral cloak\u201d they describe in their new <a href=\"https:\/\/www.osapublishing.org\/optica\/fulltext.cfm?uri=optica-3-5-536&amp;id=340798\"><em><strong>Optica<\/strong><\/em> paper<\/a> will continue to improve.<\/p>\n<p>While the Rochester Cloak offered a simple way of cloaking, it was limited by the cloaking working only over small angles, and cloaking large objects would require large, expensive lenses.<\/p>\n<p>By breaking up the information into distinct pieces, it becomes possible to use currently available digital cameras and digital displays. The Rochester researchers use a camera to scan a background and then encode the information in such a way that every pixel on a screen offers a unique view of a given point on the background for a given position of a viewer. By doing this for many views and using lenticular lenses \u2013 a sheet of plastic with an array of thin, parallel semicylindrical lenses \u2013 they can recreate multiple images of the background, each corresponding to a viewer at a different position. So if the viewer moves from side to side, every part of the background moves accordingly as if the screen was not there, \u201ccloaking\u201d anything in the space between the screen and the background.<\/p>\n<p>In the current system, it takes PhD student Joseph Choi and his advisor Professor of Physics John Howell several minutes to scan, process and update the image on the screen, i.e. to update the background. But Choi explains they are hoping soon to be able to do this in real-time, even if at lower resolution.<\/p>\n<div class=\"embed-container\"><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/WOU83eRS3Lc\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/div>\n<p>Their mathematical framework and their proof-of-concept setup also demonstrates how any object of a fixed size can be cloaked, even when in motion \u2013 so long as the shape of the object remains fixed and does not deform. To do this one side of the object would be covered in an array of sensors \u2013 effectively cameras \u2013 and the other side in pixels with tiny lenses over them. Choi\u2019s and Howell\u2019s approach could then be used to identify which sensors need to feed into which pixels so as to show the background as if an object wasn\u2019t there. A similar trick has been used in advertising, but for one viewing angle only. However, by using the Rochester group\u2019s setup, a car, for example, could be made invisible to viewers from multiple positions, not just to a person at a predetermined position.<\/p>\n<p>The Rochester Digital Cloak is patent pending. For business inquiries please read this <strong><a href=\"http:\/\/www.rochester.edu\/ventures\/wp-content\/uploads\/2016\/05\/Digital-Optical-Cloaking-URV-1-15045.pdf\" target=\"_blank\" rel=\"noopener\">information sheet from UR Ventures<\/a>.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Using the same mathematical framework as the <a href=\"\/\/www.rochester.edu\/newscenter\/watch-rochester-cloak-uses-ordinary-lenses-to-hide-objects-across-continuous-range-of-angles-70592\/\"><strong>Rochester Cloak<\/strong><\/a>, researchers have been able to use flat screen displays to extend the range of angles that can be hidden from view. Their method lays out how cloaks of arbitrary shapes, that work from multiple viewpoints, may be practically realized in the near future using commercially available digital devices.<\/p>\n","protected":false},"author":6,"featured_media":161682,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[116],"tags":[18662,29502,18652,18572],"class_list":["post-161192","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sci-tech","tag-department-of-physics-and-astronomy","tag-featured-post-side","tag-institute-of-optics","tag-research-finding"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A digital &#039;Rochester Cloak&#039; to fit all sizes<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A digital &#039;Rochester Cloak&#039; to fit all sizes\" \/>\n<meta property=\"og:description\" content=\"Using the same mathematical framework as the Rochester Cloak, researchers have been able to use flat screen displays to extend the range of angles that can be hidden from view. Their method lays out how cloaks of arbitrary shapes, that work from multiple viewpoints, may be practically realized in the near future using commercially available digital devices.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/\" \/>\n<meta property=\"og:site_name\" content=\"News Center\" \/>\n<meta property=\"article:published_time\" content=\"2016-05-19T14:30:08+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-12-06T19:38:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2016\/05\/fea-digital-rochester-cloak-illustration.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Leonor Sierra\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@leonor_sierra\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Leonor Sierra\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/a-digital-rochester-cloak-to-fit-all-sizes-161192\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/a-digital-rochester-cloak-to-fit-all-sizes-161192\\\/\"},\"author\":{\"name\":\"Leonor Sierra\",\"@id\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/#\\\/schema\\\/person\\\/b7147819f5697bc51d79e734e5a9efcf\"},\"headline\":\"A digital &#8216;Rochester Cloak&#8217; to fit all sizes\",\"datePublished\":\"2016-05-19T14:30:08+00:00\",\"dateModified\":\"2022-12-06T19:38:02+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/a-digital-rochester-cloak-to-fit-all-sizes-161192\\\/\"},\"wordCount\":505,\"image\":{\"@id\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/a-digital-rochester-cloak-to-fit-all-sizes-161192\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/wp-content\\\/uploads\\\/2016\\\/05\\\/fea-digital-rochester-cloak-illustration.jpg\",\"keywords\":[\"Department of Physics and Astronomy\",\"featured-post-side\",\"Institute of Optics\",\"research finding\"],\"articleSection\":[\"Science &amp; Technology\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/a-digital-rochester-cloak-to-fit-all-sizes-161192\\\/\",\"url\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/a-digital-rochester-cloak-to-fit-all-sizes-161192\\\/\",\"name\":\"A digital 'Rochester Cloak' to fit all sizes\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/a-digital-rochester-cloak-to-fit-all-sizes-161192\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/a-digital-rochester-cloak-to-fit-all-sizes-161192\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/wp-content\\\/uploads\\\/2016\\\/05\\\/fea-digital-rochester-cloak-illustration.jpg\",\"datePublished\":\"2016-05-19T14:30:08+00:00\",\"dateModified\":\"2022-12-06T19:38:02+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/#\\\/schema\\\/person\\\/b7147819f5697bc51d79e734e5a9efcf\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/a-digital-rochester-cloak-to-fit-all-sizes-161192\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/a-digital-rochester-cloak-to-fit-all-sizes-161192\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/a-digital-rochester-cloak-to-fit-all-sizes-161192\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/wp-content\\\/uploads\\\/2016\\\/05\\\/fea-digital-rochester-cloak-illustration.jpg\",\"contentUrl\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/wp-content\\\/uploads\\\/2016\\\/05\\\/fea-digital-rochester-cloak-illustration.jpg\",\"width\":1000,\"height\":600,\"caption\":\"Light rays redirected by the \\\"Rochester Digital Cloak.\\\" This graphic shows how light rays reflecting off of different colored wooden blocks are redirected around an obstruction through scanning, processing, and digital display with optics, effectively cloaking the area behind the display. (University illustration \\\/ Michael Osadciw)\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/a-digital-rochester-cloak-to-fit-all-sizes-161192\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"A digital &#8216;Rochester Cloak&#8217; to fit all sizes\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/#website\",\"url\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/\",\"name\":\"News Center\",\"description\":\"Ä¢¹½´«Ã½\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/#\\\/schema\\\/person\\\/b7147819f5697bc51d79e734e5a9efcf\",\"name\":\"Leonor Sierra\",\"description\":\"Leonor Sierra is press officer for science and engineering. She covers computer science, electrical and computer engineering, laboratory for laser energetics, optics, mechanical engineering, physics and astronomy, and the Office of the Dean of Engineering and Applied Sciences.\",\"sameAs\":[\"https:\\\/\\\/x.com\\\/leonor_sierra\"],\"url\":\"https:\\\/\\\/www.rochester.edu\\\/newscenter\\\/author\\\/lsierra\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"A digital 'Rochester Cloak' to fit all sizes","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/","og_locale":"en_US","og_type":"article","og_title":"A digital 'Rochester Cloak' to fit all sizes","og_description":"Using the same mathematical framework as the Rochester Cloak, researchers have been able to use flat screen displays to extend the range of angles that can be hidden from view. Their method lays out how cloaks of arbitrary shapes, that work from multiple viewpoints, may be practically realized in the near future using commercially available digital devices.","og_url":"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/","og_site_name":"News Center","article_published_time":"2016-05-19T14:30:08+00:00","article_modified_time":"2022-12-06T19:38:02+00:00","og_image":[{"url":"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2016\/05\/fea-digital-rochester-cloak-illustration.jpg","width":1000,"height":600,"type":"image\/jpeg"}],"author":"Leonor Sierra","twitter_card":"summary_large_image","twitter_creator":"@leonor_sierra","twitter_misc":{"Written by":"Leonor Sierra","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/#article","isPartOf":{"@id":"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/"},"author":{"name":"Leonor Sierra","@id":"https:\/\/www.rochester.edu\/newscenter\/#\/schema\/person\/b7147819f5697bc51d79e734e5a9efcf"},"headline":"A digital &#8216;Rochester Cloak&#8217; to fit all sizes","datePublished":"2016-05-19T14:30:08+00:00","dateModified":"2022-12-06T19:38:02+00:00","mainEntityOfPage":{"@id":"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/"},"wordCount":505,"image":{"@id":"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/#primaryimage"},"thumbnailUrl":"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2016\/05\/fea-digital-rochester-cloak-illustration.jpg","keywords":["Department of Physics and Astronomy","featured-post-side","Institute of Optics","research finding"],"articleSection":["Science &amp; Technology"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/","url":"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/","name":"A digital 'Rochester Cloak' to fit all sizes","isPartOf":{"@id":"https:\/\/www.rochester.edu\/newscenter\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/#primaryimage"},"image":{"@id":"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/#primaryimage"},"thumbnailUrl":"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2016\/05\/fea-digital-rochester-cloak-illustration.jpg","datePublished":"2016-05-19T14:30:08+00:00","dateModified":"2022-12-06T19:38:02+00:00","author":{"@id":"https:\/\/www.rochester.edu\/newscenter\/#\/schema\/person\/b7147819f5697bc51d79e734e5a9efcf"},"breadcrumb":{"@id":"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/#primaryimage","url":"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2016\/05\/fea-digital-rochester-cloak-illustration.jpg","contentUrl":"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2016\/05\/fea-digital-rochester-cloak-illustration.jpg","width":1000,"height":600,"caption":"Light rays redirected by the \"Rochester Digital Cloak.\" This graphic shows how light rays reflecting off of different colored wooden blocks are redirected around an obstruction through scanning, processing, and digital display with optics, effectively cloaking the area behind the display. (University illustration \/ Michael Osadciw)"},{"@type":"BreadcrumbList","@id":"https:\/\/www.rochester.edu\/newscenter\/a-digital-rochester-cloak-to-fit-all-sizes-161192\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.rochester.edu\/newscenter\/"},{"@type":"ListItem","position":2,"name":"A digital &#8216;Rochester Cloak&#8217; to fit all sizes"}]},{"@type":"WebSite","@id":"https:\/\/www.rochester.edu\/newscenter\/#website","url":"https:\/\/www.rochester.edu\/newscenter\/","name":"News Center","description":"Ä¢¹½´«Ã½","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.rochester.edu\/newscenter\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/www.rochester.edu\/newscenter\/#\/schema\/person\/b7147819f5697bc51d79e734e5a9efcf","name":"Leonor Sierra","description":"Leonor Sierra is press officer for science and engineering. She covers computer science, electrical and computer engineering, laboratory for laser energetics, optics, mechanical engineering, physics and astronomy, and the Office of the Dean of Engineering and Applied Sciences.","sameAs":["https:\/\/x.com\/leonor_sierra"],"url":"https:\/\/www.rochester.edu\/newscenter\/author\/lsierra\/"}]}},"_links":{"self":[{"href":"https:\/\/www.rochester.edu\/newscenter\/wp-json\/wp\/v2\/posts\/161192","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rochester.edu\/newscenter\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rochester.edu\/newscenter\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rochester.edu\/newscenter\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rochester.edu\/newscenter\/wp-json\/wp\/v2\/comments?post=161192"}],"version-history":[{"count":14,"href":"https:\/\/www.rochester.edu\/newscenter\/wp-json\/wp\/v2\/posts\/161192\/revisions"}],"predecessor-version":[{"id":543822,"href":"https:\/\/www.rochester.edu\/newscenter\/wp-json\/wp\/v2\/posts\/161192\/revisions\/543822"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.rochester.edu\/newscenter\/wp-json\/wp\/v2\/media\/161682"}],"wp:attachment":[{"href":"https:\/\/www.rochester.edu\/newscenter\/wp-json\/wp\/v2\/media?parent=161192"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rochester.edu\/newscenter\/wp-json\/wp\/v2\/categories?post=161192"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rochester.edu\/newscenter\/wp-json\/wp\/v2\/tags?post=161192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}