{"id":803,"date":"2013-12-02T17:20:25","date_gmt":"2013-12-02T17:20:25","guid":{"rendered":"http:\/\/lousodrome.net\/blog\/light\/?p=803"},"modified":"2013-12-02T17:20:25","modified_gmt":"2013-12-02T17:20:25","slug":"first-photon-imaging","status":"publish","type":"post","link":"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/first-photon-imaging\/","title":{"rendered":"First-photon imaging"},"content":{"rendered":"<p>The compressive sensing blog <a href=\"http:\/\/nuit-blanche.blogspot.jp\/2013\/12\/first-photon-imaging-implementation.html\">Nuit-Blanche reports<\/a> this publication: <a href=\"http:\/\/www.rle.mit.edu\/first-photon-imaging\/index.html\">First-photon imaging<\/a>. The technique allows to capture depth and (limited) reflectivity information using only a small number of photons (virtually in the dark).<\/p>\n<p><iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/vhLrhsM66SU\" height=\"375\" width=\"500\" allowfullscreen=\"\" frameborder=\"0\"><\/iframe><\/p>\n<p><span style=\"text-decoration: underline;\">Abstract:<\/span><\/p>\n<blockquote>\n<p align=\"justify\">Imagers that use their own illumination can capture 3D structure and reflectivity information. With photon-counting detectors, images can be acquired at extremely low photon fluxes. To suppress the Poisson noise inherent in low-flux operation, such imagers typically require hundreds of detected photons per pixel for accurate range and reflectivity determination. We introduce a low-flux imaging technique, called first-photon imaging, which is a computational imager that exploits spatial correlations found in real-world scenes and the physics of low-flux measurements. Our technique recovers 3D structure and reflectivity from the first detected photon at each pixel. We demonstrate simultaneous acquisition of sub-pulse duration range and 4-bit reflectivity information in the presence of high background noise. First-photon imaging may be of considerable value to both microscopy and remote sensing.<\/p>\n<\/blockquote>\n<p align=\"justify\">\n","protected":false},"excerpt":{"rendered":"<p>The compressive sensing blog Nuit-Blanche reports this publication: First-photon imaging. The technique allows to capture depth and (limited) reflectivity information using only a small number of photons (virtually in the dark). Abstract: Imagers that use their own illumination can capture &hellip; <a href=\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/first-photon-imaging\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[8,20],"tags":[31,30,117,504,322,323],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.13 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>First-photon imaging &ndash; Light is beautiful<\/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:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/first-photon-imaging\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"First-photon imaging &ndash; Light is beautiful\" \/>\n<meta property=\"og:description\" content=\"The compressive sensing blog Nuit-Blanche reports this publication: First-photon imaging. The technique allows to capture depth and (limited) reflectivity information using only a small number of photons (virtually in the dark). Abstract: Imagers that use their own illumination can capture &hellip; Continue reading &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/first-photon-imaging\/\" \/>\n<meta property=\"og:site_name\" content=\"Light is beautiful\" \/>\n<meta property=\"article:published_time\" content=\"2013-12-02T17:20:25+00:00\" \/>\n<meta name=\"author\" content=\"Julien Guertault\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Zavie\" \/>\n<meta name=\"twitter:site\" content=\"@Zavie\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Julien Guertault\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/first-photon-imaging\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/first-photon-imaging\/\"},\"author\":{\"name\":\"Julien Guertault\",\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/#\/schema\/person\/a16a2a69d73eca763ffdf125c49eaa2f\"},\"headline\":\"First-photon imaging\",\"datePublished\":\"2013-12-02T17:20:25+00:00\",\"dateModified\":\"2013-12-02T17:20:25+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/first-photon-imaging\/\"},\"wordCount\":159,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/#\/schema\/person\/a16a2a69d73eca763ffdf125c49eaa2f\"},\"keywords\":[\"experiment\",\"MIT\",\"noise\",\"photon\",\"research\",\"science\"],\"articleSection\":[\"Photo\",\"Science\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/first-photon-imaging\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/first-photon-imaging\/\",\"url\":\"https:\/\/lousodrome.net\/blog\/light\/2013\/12\/02\/first-photon-imaging\/\",\"name\":\"First-photon imaging &ndash; 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