{"id":3365,"date":"2024-08-21T09:28:53","date_gmt":"2024-08-21T09:28:53","guid":{"rendered":"https:\/\/www.flagarde.fr\/wp_fl\/?p=3365"},"modified":"2024-08-22T12:32:35","modified_gmt":"2024-08-22T12:32:35","slug":"comment-voir-en-relief-3d-stereoscopique-generalites","status":"publish","type":"post","link":"https:\/\/www.flagarde.fr\/wp_fl\/comment-voir-en-relief-3d-stereoscopique-generalites\/","title":{"rendered":"Comment voir en relief (3D st\u00e9r\u00e9oscopique) \u2013 g\u00e9n\u00e9ralit\u00e9s"},"content":{"rendered":"\t\t
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Il s\u2019agit de fournir \u00e0 chacun de nos yeux (gauche et droit) une des\u00a0 2 images diff\u00e9rentes enregistr\u00e9es
a) les 2 images sont pr\u00e9sent\u00e9es c\u00f4te \u00e0 c\u00f4te<\/strong> (le couple, SBS) =>
\u2013 chaque c\u00f4t\u00e9 est fourni au bon \u0153il par un syst\u00e8me de lentilles de prismes : st\u00e9r\u00e9oscopes, binocles, \u2026
\u2013 il y a aussi la vision libre \u2026 pour st\u00e9r\u00e9oscopiste entrain\u00e9
Le couple d\u2019images peut \u00eatre compress\u00e9, puis d\u00e9compress\u00e9
Le couple d\u2019images peut aussi \u00eatre transform\u00e9 dans un des modes ci-dessous
b) le 2 images sont fusionn\u00e9es en une seule image <\/strong>et un dispositif les s\u00e9parent. lLe m\u00e9lange peut \u00eatre fait :
\u2013 par les couleurs : les anaglyphes => l\u2019image est vue avec des lunettes rouge et bleue ;\u00a0 c\u2019est bien pour des images N&B (noir et\u00a0 blanc )
\u2013 par des polarisation diff\u00e9rente => lunettes polaris\u00e9es
\u2013 par entrelacement des fines bandes verticales ou horizontales => l\u2019\u00e9cran a des fines bandes faisant loupe (les lenticules)
\u00a0\u00a0 et chaque \u0153il ne voit que les bandes grossies qui correspondent \u00e0 une des images
\u00a0\u00a0 il n\u2019y a pas besoin de lunettes; les \u00e9crans sp\u00e9ciaux sont dit \u201cautost\u00e9r\u00e9oscopiques\u201d\u00a0 pour des smartphone, tablette ou des cartes \u00e0 r\u00e9seau lenticulaire
c) les 2 images sont pr\u00e9sent\u00e9es alternativement<\/strong> de fa\u00e7on tr\u00e8s tr\u00e8s rapide =>\u00a0 on les voit avec des lunettes actives
\u00a0\u00a0\u00a0 ces lunettes, synchronis\u00e9s avec la source, s\u2019ouvrent et se ferment; chaque \u0153il ne voit qu\u2019une image sur deux (.
\u00a0\u00a0\u00a0 la rapidit\u00e9 (souvent 144 fois \/ seconde) fait que l\u2019on ne s\u2019aper\u00e7oit pas de cette alternance<\/p>

Les cin\u00e9mas 3D utilisent divers proc\u00e9d\u00e9s ; le \u201cRealD 3D\u201d,\u00a0 largement utilis\u00e9, combine altern\u00e9 et\u00a0 polaris\u00e9 ; les lunettes sont polaris\u00e9es<\/p>

Les casques\u00a0 dit \u201cde VR\u201d poss\u00e8dent 2 \u00e9crans avec des loupes ; et chaque image du couple est pr\u00e9sent\u00e9e au bon \u0153il<\/p>

Plusieurs syst\u00e8mes informatiques de diffusion des images permettent de choisir entre plusieurs pr\u00e9sentations sur \u00e9cran
C\u2019est le cas de ce site<\/p>

Le site du St\u00e9r\u00e9o-Club Fran\u00e7ais consacre une rubrique \u00e0 cette mati\u00e8rehttps:\/\/www.image-en-relief.org\/stereo\/images-en-3d\/comment-voir-en-relief-3d<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Il s\u2019agit de fournir \u00e0 chacun de nos yeux (gauche et droit) une des\u00a0 2 images diff\u00e9rentes enregistr\u00e9esa) les 2 images sont pr\u00e9sent\u00e9es c\u00f4te \u00e0 c\u00f4te (le couple, SBS) =>\u2013 chaque c\u00f4t\u00e9 est fourni au bon \u0153il par un syst\u00e8me de lentilles de prismes : st\u00e9r\u00e9oscopes, binocles, \u2026\u2013 il y a aussi la vision libre …<\/p>\n

Comment voir en relief (3D st\u00e9r\u00e9oscopique) \u2013 g\u00e9n\u00e9ralit\u00e9s<\/span> Read More »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ngg_post_thumbnail":0,"footnotes":""},"categories":[21,1],"tags":[19],"class_list":["post-3365","post","type-post","status-publish","format-standard","hentry","category-documents-sur-3d-stereo","category-uncategorized","tag-documentation"],"_links":{"self":[{"href":"https:\/\/www.flagarde.fr\/wp_fl\/wp-json\/wp\/v2\/posts\/3365","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.flagarde.fr\/wp_fl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.flagarde.fr\/wp_fl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.flagarde.fr\/wp_fl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.flagarde.fr\/wp_fl\/wp-json\/wp\/v2\/comments?post=3365"}],"version-history":[{"count":4,"href":"https:\/\/www.flagarde.fr\/wp_fl\/wp-json\/wp\/v2\/posts\/3365\/revisions"}],"predecessor-version":[{"id":3369,"href":"https:\/\/www.flagarde.fr\/wp_fl\/wp-json\/wp\/v2\/posts\/3365\/revisions\/3369"}],"wp:attachment":[{"href":"https:\/\/www.flagarde.fr\/wp_fl\/wp-json\/wp\/v2\/media?parent=3365"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.flagarde.fr\/wp_fl\/wp-json\/wp\/v2\/categories?post=3365"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.flagarde.fr\/wp_fl\/wp-json\/wp\/v2\/tags?post=3365"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}