{"id":40874,"date":"2023-06-03T10:57:28","date_gmt":"2023-06-03T10:57:28","guid":{"rendered":"https:\/\/www.labri.fr\/perso\/barla\/blog\/?p=40874"},"modified":"2023-06-08T10:39:29","modified_gmt":"2023-06-08T10:39:29","slug":"specular-image-structure","status":"publish","type":"post","link":"https:\/\/www.labri.fr\/perso\/barla\/blog\/?p=40874","title":{"rendered":"Potential image structure"},"content":{"rendered":"<p id=\"top\" \/>\n<p><strong><em><em><strong>\u2794<\/strong><\/em><\/em><\/strong> <strong><em>How is an image structured in both space and time, and what does it potentially convey about observed objects shape, material and motion?<\/em><\/strong><\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Specular rotoscoping<\/h3>\n\n\n\n<p>Paint (potential?) specular highlights at a given frame, and advect them forward or backward using specular flow for a given sequence.<\/p>\n\n\n\n<p>Deal with singularities, stretching, and try out different abstractions of these potential cues.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Optical signatures<\/h3>\n\n\n\n<p>Importance maps: Spectral patterns as a function of viewing direction and distance, looking like animated caustics (separate for multiple object parts)<\/p>\n\n\n\n<p>Various lighting environments implemented as complex panoramic emmitters.<\/p>\n\n\n\n<p><em>\u2192<\/em>&nbsp;<em>How can we find discrimination metrics (contrast, flicker, etc) and compare them to peripheral\/foveal animal vision properties<\/em>?<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Specular image structure<\/h3>\n\n\n\n<p>Deformation of reflections due to surface or tangential curvatures<\/p>\n\n\n\n<p>Relationships to diffuse\/textured\/iridescent image components<\/p>\n\n\n\n<p>Invariants related to surface shape and motion properties.<\/p>\n\n\n\n<p><em>\u2192 How are these invariants picked up and exploited by humans in different tasks?<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u2794 How is an image structured in both space and time, and what does it potentially convey about observed objects shape, material and motion? Specular rotoscoping Paint (potential?) specular highlights at a given frame, and advect them forward or backward using specular flow for a given sequence. Deal with singularities, stretching, and try out different &#8230; <a title=\"Potential image structure\" class=\"read-more\" href=\"https:\/\/www.labri.fr\/perso\/barla\/blog\/?p=40874\" aria-label=\"Read more about Potential image structure\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[774],"tags":[],"class_list":["post-40874","post","type-post","status-publish","format-standard","hentry","category-projects"],"_links":{"self":[{"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=\/wp\/v2\/posts\/40874","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=40874"}],"version-history":[{"count":7,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=\/wp\/v2\/posts\/40874\/revisions"}],"predecessor-version":[{"id":40978,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=\/wp\/v2\/posts\/40874\/revisions\/40978"}],"wp:attachment":[{"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=40874"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=40874"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=40874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}