{"id":37451,"date":"2015-06-30T17:14:08","date_gmt":"2015-06-30T17:14:08","guid":{"rendered":"http:\/\/www.labri.fr\/perso\/barla\/blog\/?p=37451"},"modified":"2015-06-30T17:15:27","modified_gmt":"2015-06-30T17:15:27","slug":"ei-2015","status":"publish","type":"post","link":"https:\/\/www.labri.fr\/perso\/barla\/blog\/?p=37451","title":{"rendered":"EI 2015"},"content":{"rendered":"<p id=\"top\" \/>Roland Fleming<\/p>\n<ul>\n<li>Is there any difference between implicit and explicit internal representations? The latter has to be costructed and used for prediction, while the former merely needs to be checked against.<\/li>\n<li>&#8220;Constructing perceptual categories&#8221; by Jacob Feldman, reminds of Bongaard diagrams and simplicity in Arnheim, which is exactly what is targeted in expressive rendering\/compositing.<\/li>\n<li>Lighting distqnce seems to be conveyed by the (conjoint?) distribution of highlights and cast shadows for globally convex shapes.<\/li>\n<li>Rougher surfaces produce over-estimation of light-distance ; how might this be related to highlights\/shadows?<\/li>\n<li>How much is the effect invariant to light intensity? Could this be predicted by highlight\/shadow statistics?<\/li>\n<\/ul>\n<p>Holy Rushmeier<\/p>\n<ul>\n<li>Reddy et al ECCV2012, Wu et al IJCV2014: optical separation of light paths.<\/li>\n<li>Use vision techniques to separate single from multiple scattering in material patches.<\/li>\n<\/ul>\n<p>Heinz Steinhauser<\/p>\n<ul>\n<li>Pan and shalan 2013: normal map capture from simple scanners<\/li>\n<li>Why using a full BTF representation when &#8220;distant&#8221; interactions are actually quite local?<\/li>\n<\/ul>\n<p>Ga\u00ebl Obein<\/p>\n<ul>\n<li>In BRDF measurement systems, the choice of outgoing solid angle has a significant impact on the resulting BRDF, for specular as well as glossy BRDFs<\/li>\n<li>A BRDF should thus come with the measurement apertures (solid angle AND areas), so that it may be adequately evaluated with effective simulation apertures !!!<\/li>\n<\/ul>\n<p>Sylvia Pont<\/p>\n<ul>\n<li>The concave\/convex ambiguity is not only influenced by lighting from above, but also by assumed perspective distortions<\/li>\n<li>Would be interesting to come up with images producing conflicting cues regarding these ambiguities, even when rotated 180\u00b0 !<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Roland Fleming Is there any difference between implicit and explicit internal representations? The latter has to be costructed and used for prediction, while the former merely needs to be checked against. &#8220;Constructing perceptual categories&#8221; by Jacob Feldman, reminds of Bongaard diagrams and simplicity in Arnheim, which is exactly what is targeted in expressive rendering\/compositing. Lighting &#8230; <a title=\"EI 2015\" class=\"read-more\" href=\"https:\/\/www.labri.fr\/perso\/barla\/blog\/?p=37451\" aria-label=\"Read more about EI 2015\">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":[81],"tags":[],"class_list":["post-37451","post","type-post","status-publish","format-standard","hentry","category-talks"],"_links":{"self":[{"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=\/wp\/v2\/posts\/37451","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=37451"}],"version-history":[{"count":3,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=\/wp\/v2\/posts\/37451\/revisions"}],"predecessor-version":[{"id":37471,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=\/wp\/v2\/posts\/37451\/revisions\/37471"}],"wp:attachment":[{"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=37451"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=37451"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.labri.fr\/perso\/barla\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=37451"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}