{"id":11,"date":"2010-07-05T09:35:00","date_gmt":"2010-07-05T09:35:00","guid":{"rendered":"http:\/\/www.renaudpradenc.com\/?p=11"},"modified":"2013-01-17T15:47:49","modified_gmt":"2013-01-17T14:47:49","slug":"la-tele-3d-et-l-impression-de-relief","status":"publish","type":"post","link":"https:\/\/www.renaudpradenc.com\/?p=11","title":{"rendered":"La t\u00e9l\u00e9 3D et l&#8217;impression de relief"},"content":{"rendered":"<p>Dans le cadre de son excellent podcast consacr\u00e9 \u00e0 la photographie, <a href=\"http:\/\/www.declencheur.com\/photo\/emission\/note\/photo-3d-pourquoi-comment\">Beno\u00eet Marchal a interview\u00e9 Michel-Patrick Lauret<\/a>, sp\u00e9cialiste de la st\u00e9r\u00e9ophotographie. Je ne vais pas revenir sur le principe, vous conseillant plut\u00f4t l&#8217;\u00e9coute de l&#8217;\u00e9mission.Ce qui m&#8217;a particuli\u00e8rement int\u00e9ress\u00e9 est le point de vue du photographe sur la t\u00e9l\u00e9vision 3D.<\/p>\n<p>Comme il l&#8217;explique fort justement, la distinction des reliefs \u00e9tant donn\u00e9e par l&#8217;\u00e9cart des yeux, elle ne fonctionne bien que lorsque le sujet observ\u00e9 est proche. D&#8217;o\u00f9 l&#8217;utilisation de focales standard pour r\u00e9v\u00e9ler la profondeur. Dans son exemple d&#8217;un mannequin marchant sur un podium, alors que les autres photographes utiliseront des t\u00e9l\u00e9-objectifs pour photographier le mannequin de loin, lui attendra qu&#8217;il arrive au bout du podium pour \u00eatre le plus pr\u00e8s possible et donner la meilleure sensation de relief.<\/p>\n<p>Or, les conventions du cin\u00e9ma sont plut\u00f4t d&#8217;utiliser des plans serr\u00e9s, qui n\u00e9cessitent l&#8217;utilisation de longue focales. Pareil pour filmer un match de foot: les cam\u00e9ramen se trouvent sur le bord du terrain et utilisent de longs t\u00e9l\u00e9-objectifs. L&#8217;impression de relief est donc minimale.<\/p>\n<p>Tout le propos est que pour g\u00e9n\u00e9raliser la st\u00e9r\u00e9ovision, il faudra aussi repenser la mani\u00e8re de filmer.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dans le cadre de son excellent podcast consacr\u00e9 \u00e0 la photographie, Beno\u00eet Marchal a interview\u00e9 Michel-Patrick Lauret, sp\u00e9cialiste de la st\u00e9r\u00e9ophotographie. Je ne vais pas revenir sur le principe, vous conseillant plut\u00f4t l&#8217;\u00e9coute de l&#8217;\u00e9mission.Ce qui m&#8217;a particuli\u00e8rement int\u00e9ress\u00e9 est le point de vue du photographe sur la t\u00e9l\u00e9vision 3D. Comme il l&#8217;explique fort justement, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[68,70,69],"class_list":["post-11","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-3d","tag-stereoscopie","tag-television"],"_links":{"self":[{"href":"https:\/\/www.renaudpradenc.com\/index.php?rest_route=\/wp\/v2\/posts\/11","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.renaudpradenc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.renaudpradenc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.renaudpradenc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.renaudpradenc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11"}],"version-history":[{"count":4,"href":"https:\/\/www.renaudpradenc.com\/index.php?rest_route=\/wp\/v2\/posts\/11\/revisions"}],"predecessor-version":[{"id":129,"href":"https:\/\/www.renaudpradenc.com\/index.php?rest_route=\/wp\/v2\/posts\/11\/revisions\/129"}],"wp:attachment":[{"href":"https:\/\/www.renaudpradenc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.renaudpradenc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.renaudpradenc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}