{"id":16,"date":"2005-12-25T15:12:55","date_gmt":"2005-12-25T20:12:55","guid":{"rendered":"http:\/\/photondetector.com\/blog\/?p=16"},"modified":"2006-02-27T23:11:02","modified_gmt":"2006-02-28T04:11:02","slug":"digitally-refocusable-photographs","status":"publish","type":"post","link":"https:\/\/photondetector.com\/blog\/2005\/12\/25\/digitally-refocusable-photographs\/","title":{"rendered":"Digitally refocusable photographs: light field photography with a hand-held plenoptic camera"},"content":{"rendered":"<div id=\"fb-root\"><\/div>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/blog\/blogimg\/1620051235ren_ng_plenoptic_cam_sample.jpg\" width=\"474\" height=\"150\" alt=\"Plenoptic Camera Sample\" \/><\/p>\n<p><a href=\"http:\/\/graphics.stanford.edu\/~renng\/\">Ren Ng<\/a>, a Ph.D student in the Computer Science department at Stanford says, &#8220;For my dissertation I&#8217;ve been working on ways of capturing more information about the light inside a camera for enhanced digital photography. My work has spanned both practical and theoretical elements of the problem. On the practical side, we&#8217;ve written <a href=\"http:\/\/graphics.stanford.edu\/papers\/lfcamera\/lfcamera-150dpi.pdf\">a paper<\/a> about a camera that samples the full 4D light field inside the camera in a single photographic exposure. We show that you can use such data to refocus the acquired photograph at different depths after the exposure. The images above, which are focused at different depths, were computed from a single exposure of a prototype camera that we built.  We&#8217;ve used the prototype to shoot hundreds of light fields. My collaborators on this project were <a href=\"http:\/\/graphics.stanford.edu\/~bredif\/\">Mathieu Br\u00c3\u00a9dif<\/a>, Gene Duval, and Professors <a href=\"http:\/\/graphics.stanford.edu\/~levoy\/\">Marc Levoy<\/a>, <a href=\"http:\/\/www-flash.stanford.edu\/~horowitz\/\">Mark Horowitz<\/a> and <a href=\"http:\/\/graphics.stanford.edu\/~hanrahan\/\">Pat Hanrahan<\/a>.&#8221;<\/p>\n<p>Read <a href=\"http:\/\/graphics.stanford.edu\/papers\/lfcamera\/lfcamera-150dpi.pdf\">their paper<\/a> and see more sample images at the <a href=\"http:\/\/graphics.stanford.edu\/papers\/lfcamera\/\">project home page<\/a>. Don&#8217;t miss his <a href=\"http:\/\/graphics.stanford.edu\/papers\/fourierphoto\/\">paper on Fourier Slice Photography<\/a>, either!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ren Ng, a Ph.D student in the Computer Science department at Stanford says, &#8220;For my dissertation I&#8217;ve been working on ways of capturing more information about the light inside a camera for enhanced digital photography. My work has spanned both practical and theoretical elements of the problem. On the practical side, we&#8217;ve written a paper [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,3],"tags":[1937,1936,1935],"class_list":["post-16","post","type-post","status-publish","format-standard","hentry","category-extra-geeky","category-kit","tag-plenoptic","tag-post-processing","tag-ren-ng"],"_links":{"self":[{"href":"https:\/\/photondetector.com\/blog\/wp-json\/wp\/v2\/posts\/16","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/photondetector.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/photondetector.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/photondetector.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/photondetector.com\/blog\/wp-json\/wp\/v2\/comments?post=16"}],"version-history":[{"count":0,"href":"https:\/\/photondetector.com\/blog\/wp-json\/wp\/v2\/posts\/16\/revisions"}],"wp:attachment":[{"href":"https:\/\/photondetector.com\/blog\/wp-json\/wp\/v2\/media?parent=16"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/photondetector.com\/blog\/wp-json\/wp\/v2\/categories?post=16"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/photondetector.com\/blog\/wp-json\/wp\/v2\/tags?post=16"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<!-- WP Super Cache is installed but broken. The constant WPCACHEHOME must be set in the file wp-config.php and point at the WP Super Cache plugin directory. -->