{"id":279,"date":"2018-10-23T03:57:38","date_gmt":"2018-10-23T03:57:38","guid":{"rendered":"https:\/\/sstrc.chuhai.edu.hk\/?p=279"},"modified":"2019-03-11T06:26:11","modified_gmt":"2019-03-11T06:26:11","slug":"light-field-based-face-spoofing-attack-dataset-lf-sad","status":"publish","type":"post","link":"https:\/\/ssitrc.chuhai.edu.hk\/index.php\/2018\/10\/23\/light-field-based-face-spoofing-attack-dataset-lf-sad\/","title":{"rendered":"Light Field-based Face Spoofing Attack Dataset (LF-SAD)"},"content":{"rendered":"<p style=\"text-align: left;\"><span style=\"color: #339966;\">The LF-SAD dataset was developed to provide a useful dataset for the evaluation of the light field-based face spoofing attack detection. It consists of three spoofing attack types\u2014high definition printed photo, warped printed photo, and a high definition screen displayed photo. All photos in this database were captured by Lytro ILLUM light field camera at Chu Hai College of Higher Education.<\/span><\/p>\n<p><!--more--><\/p>\n<p style=\"text-align: left;\"><span style=\"color: #339966;\">328 real face photos were generated from 50 subjects. 199 for printed photo attack, 198 for warped printed photo attack, and 199 for screen displayed photo attack photos were generated from the real face photo. All raw images have the same size with 625&#215;434 in spatial domain.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"color: #339966;\">If you are interest to our database, please feel free to send an email entitled \u201cLF-SAD dataset request\u201d to hongfu@chuhai.edu.hk.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-280\" src=\"https:\/\/ssitrc.chuhai.edu.hk\/wp-content\/uploads\/2018\/10\/1-300x83.jpg\" alt=\"\" width=\"300\" height=\"83\" srcset=\"https:\/\/ssitrc.chuhai.edu.hk\/wp-content\/uploads\/2018\/10\/1-300x83.jpg 300w, https:\/\/ssitrc.chuhai.edu.hk\/wp-content\/uploads\/2018\/10\/1.jpg 744w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><span style=\"color: #339966;\">Figure 1 Dataset collection<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-281\" src=\"https:\/\/ssitrc.chuhai.edu.hk\/wp-content\/uploads\/2018\/10\/2-300x163.jpg\" alt=\"\" width=\"300\" height=\"163\" srcset=\"https:\/\/ssitrc.chuhai.edu.hk\/wp-content\/uploads\/2018\/10\/2-300x163.jpg 300w, https:\/\/ssitrc.chuhai.edu.hk\/wp-content\/uploads\/2018\/10\/2.jpg 744w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><span style=\"color: #339966;\">Figure 2 Examples of the dataset photo<\/span><\/p>\n<p><span style=\"color: #ff9900;\"><strong>File structure description:<\/strong><\/span><\/p>\n<p><span style=\"color: #339966;\"><em>\u201c.\/real\/\u201d<\/em><\/span><\/p>\n<p><span style=\"color: #339966;\">The directory includes the real face photos.<\/span><\/p>\n<p><span style=\"color: #339966;\"><em>\u201c.\/type1\/\u201d<\/em><\/span><\/p>\n<p><span style=\"color: #339966;\">The directory includes the printed photo attack face photos.<\/span><\/p>\n<p><span style=\"color: #339966;\"><em>\u201c.\/type2\/\u201d<\/em><\/span><\/p>\n<p><span style=\"color: #339966;\">The directory includes the wrapped photo attack face photos.<\/span><\/p>\n<p><span style=\"color: #339966;\"><em>\u201c.\/type3\/\u201d<\/em><\/span><\/p>\n<p><span style=\"color: #339966;\">The directory includes the screen displayed photo attack face photos.<\/span><\/p>\n<p><span style=\"color: #ff9900;\"><strong>File name description:<\/strong><\/span><\/p>\n<p><span style=\"color: #339966;\"><em>\u201cIMG_xxxx.LFR\u201d<\/em><\/span><\/p>\n<p><span style=\"color: #339966;\">The raw light field photo data with a photo index \u201cxxxx\u201d.<\/span><\/p>\n<p><span style=\"color: #339966;\"><em>\u201cIMG_xxxx__Decoded.mat\u201d<\/em><\/span><\/p>\n<p><span style=\"color: #339966;\">The decoded light filed data using the light field toolbox for MATLAB.<\/span><\/p>\n<p><span style=\"color: #339966;\"><em>\u201cIMG_xxxx__Decoded_Thumb.png\u201d<\/em><\/span><\/p>\n<p><span style=\"color: #339966;\">The thumbnail of the decoded plain image.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The LF-SAD dataset was developed to provide a useful dataset for the evaluation of the light field-based face spoofing attack detection. It consists of three spoofing attack types\u2014high definition printed photo, warped printed photo, and a high definition screen displayed photo. All photos in this database were captured by Lytro ILLUM light field camera at &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/ssitrc.chuhai.edu.hk\/index.php\/2018\/10\/23\/light-field-based-face-spoofing-attack-dataset-lf-sad\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Light Field-based Face Spoofing Attack Dataset (LF-SAD)&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-279","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/ssitrc.chuhai.edu.hk\/index.php\/wp-json\/wp\/v2\/posts\/279","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ssitrc.chuhai.edu.hk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ssitrc.chuhai.edu.hk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ssitrc.chuhai.edu.hk\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ssitrc.chuhai.edu.hk\/index.php\/wp-json\/wp\/v2\/comments?post=279"}],"version-history":[{"count":2,"href":"https:\/\/ssitrc.chuhai.edu.hk\/index.php\/wp-json\/wp\/v2\/posts\/279\/revisions"}],"predecessor-version":[{"id":299,"href":"https:\/\/ssitrc.chuhai.edu.hk\/index.php\/wp-json\/wp\/v2\/posts\/279\/revisions\/299"}],"wp:attachment":[{"href":"https:\/\/ssitrc.chuhai.edu.hk\/index.php\/wp-json\/wp\/v2\/media?parent=279"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ssitrc.chuhai.edu.hk\/index.php\/wp-json\/wp\/v2\/categories?post=279"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ssitrc.chuhai.edu.hk\/index.php\/wp-json\/wp\/v2\/tags?post=279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}