{"id":2317,"date":"2020-04-07T06:27:33","date_gmt":"2020-04-07T13:27:33","guid":{"rendered":"https:\/\/melindaozel.com\/?p=2317"},"modified":"2025-02-25T14:38:09","modified_gmt":"2025-02-25T19:38:09","slug":"bypassing-vr-headset-occlusion-in-face-tracking","status":"publish","type":"post","link":"https:\/\/melindaozel.com\/sv\/bypassing-vr-headset-occlusion-in-face-tracking\/","title":{"rendered":"Ocklusion i VR-headset vid ansiktssp\u00e5rning"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2317\" class=\"elementor elementor-2317\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6da80560 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6da80560\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2724d854\" data-id=\"2724d854\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7d11bd1c elementor-widget elementor-widget-text-editor\" data-id=\"7d11bd1c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2><span style=\"font-weight: 500;\">Sp\u00e5rning av det du inte kan se<\/span><\/h2><p><div id='gallery-1' class='gallery galleryid-2317 gallery-columns-4 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/melindaozel.com\/sv\/bypassing-vr-headset-occlusion-in-face-tracking\/f3890bc6-9e9d-4b37-9b06-22ad9a97eaaf\/#main'><img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/F3890BC6-9E9D-4B37-9B06-22AD9A97EAAF.jpg?resize=150%2C150&amp;ssl=1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/F3890BC6-9E9D-4B37-9B06-22AD9A97EAAF.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/F3890BC6-9E9D-4B37-9B06-22AD9A97EAAF.jpg?zoom=2&amp;resize=150%2C150&amp;ssl=1 300w, https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/F3890BC6-9E9D-4B37-9B06-22AD9A97EAAF.jpg?zoom=3&amp;resize=150%2C150&amp;ssl=1 450w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/melindaozel.com\/sv\/bypassing-vr-headset-occlusion-in-face-tracking\/da7a6e86-16c6-4b5e-b4ad-89b9ef84dd12\/#main'><img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/DA7A6E86-16C6-4B5E-B4AD-89B9EF84DD12.jpg?resize=150%2C150&amp;ssl=1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/DA7A6E86-16C6-4B5E-B4AD-89B9EF84DD12.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/DA7A6E86-16C6-4B5E-B4AD-89B9EF84DD12.jpg?zoom=2&amp;resize=150%2C150&amp;ssl=1 300w, https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/DA7A6E86-16C6-4B5E-B4AD-89B9EF84DD12.jpg?zoom=3&amp;resize=150%2C150&amp;ssl=1 450w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/melindaozel.com\/sv\/bypassing-vr-headset-occlusion-in-face-tracking\/efd31615-cbfa-48e4-b548-439f0983198b\/#main'><img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/EFD31615-CBFA-48E4-B548-439F0983198B.jpg?resize=150%2C150&amp;ssl=1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/EFD31615-CBFA-48E4-B548-439F0983198B.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/EFD31615-CBFA-48E4-B548-439F0983198B.jpg?zoom=2&amp;resize=150%2C150&amp;ssl=1 300w, https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/EFD31615-CBFA-48E4-B548-439F0983198B.jpg?zoom=3&amp;resize=150%2C150&amp;ssl=1 450w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/melindaozel.com\/sv\/bypassing-vr-headset-occlusion-in-face-tracking\/8a0ec850-7579-4cfb-a2a9-af86bb491395\/#main'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/8A0EC850-7579-4CFB-A2A9-AF86BB491395.jpg?resize=150%2C150&amp;ssl=1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/8A0EC850-7579-4CFB-A2A9-AF86BB491395.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/8A0EC850-7579-4CFB-A2A9-AF86BB491395.jpg?zoom=2&amp;resize=150%2C150&amp;ssl=1 300w, https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/04\/8A0EC850-7579-4CFB-A2A9-AF86BB491395.jpg?zoom=3&amp;resize=150%2C150&amp;ssl=1 450w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<\/p><p><span style=\"font-weight: 300;\">Under alla de \u00e5r som jag har arbetat med ansiktssp\u00e5rning har jag observerat en \u00f6vertro bland ingenj\u00f6rer och forskare p\u00e5 att det inte g\u00e5r att sp\u00e5ra ansiktsmark\u00f6rer (funktioner som \u00f6gonbryn, \u00f6gon och mun) n\u00e4r de ligger utanf\u00f6r kamerans synf\u00e4lt. Denna tro \u00e4r inte helt sann. Du beh\u00f6ver inte se ett \u00f6gonbryn f\u00f6r att veta om det h\u00f6js eller rynkas, och du beh\u00f6ver inte se n\u00e4san f\u00f6r att veta n\u00e4r den rynkar.<\/span><\/p><p><span style=\"font-weight: 300;\">V\u00e5ra ansikten b\u00f6ljar, str\u00e4cker sig och rynkar sig p\u00e5 ett unikt s\u00e4tt med varje ansiktsr\u00f6relse. Jag har anv\u00e4nt dessa f\u00f6r\u00e4ndringar f\u00f6r att tr\u00e4na etiketterare att k\u00e4nna igen och korrekt klassificera diskreta uttryck enbart utifr\u00e5n hudens r\u00f6relser. Med v\u00e4lriktad dokumentation, en omfattande upps\u00e4ttning exempel och en h\u00f6gkvalitativ kamera kan man extrapolera m\u00e4ngder av information med en begr\u00e4nsad FOV.<\/span><\/p><p><span style=\"font-weight: 300;\">Den minimala FOV som kr\u00e4vs f\u00f6r \u00f6gonsp\u00e5rning r\u00e4cker ofta f\u00f6r att sp\u00e5ra en handfull \u00e5tg\u00e4rder. Vy A (i bildupps\u00e4ttningen nedan) \u00e5terspeglar b\u00e4st hur en blickbaserad sp\u00e5rningsvy kan se ut. \u00c4ven om huvudm\u00e5let f\u00f6r \u00f6gonsp\u00e5rningskameror \u00e4r att t\u00e4cka precis tillr\u00e4ckligt mycket av \u00f6gat f\u00f6r att observera f\u00f6r\u00e4ndringar i blicken, \u00e4r potentialen mycket st\u00f6rre. \u00c4ven med denna koncentrerade vy kan du fortfarande uppt\u00e4cka <\/span><i><span style=\"font-weight: 300;\">\u00d6vre \u00f6gonlocket h\u00f6jer sig. <\/span><\/i><span style=\"font-weight: 300;\">(AU5), <\/span><i><span style=\"font-weight: 300;\">k\u00e4pph\u00f6jning <\/span><\/i><span style=\"font-weight: 300;\">(AU6), och <\/span><i><span style=\"font-weight: 300;\">lockstramare<\/span><\/i><span style=\"font-weight: 300;\"> (AU7) med relativt h\u00f6g grad av s\u00e4kerhet. Dessa \u00e5tg\u00e4rder \u00e4r anv\u00e4ndbara f\u00f6r att m\u00e4ta uppm\u00e4rksamhet, reaktioner och engagemang, men de \u00e4r ocks\u00e5 viktiga signaler i kommunikationen.<\/span><\/p><p><span style=\"font-weight: 300;\">M\u00e5nga m\u00e4nniskor blir blockerade av namn p\u00e5 handlingsenheter som <\/span><i><span style=\"font-weight: 300;\">k\u00e4pph\u00f6jning <\/span><\/i><span style=\"font-weight: 300;\">och antar att \"Vi kan inte sp\u00e5ra <\/span><i><span style=\"font-weight: 300;\">k\u00e4pph\u00f6jning <\/span><\/i><span style=\"font-weight: 300;\">eftersom v\u00e5r FOV inte t\u00e4cker kinden.\" Men <\/span><i><span style=\"font-weight: 300;\">k\u00e4pph\u00f6jning <\/span><\/i><span style=\"font-weight: 300;\">\u00e4r mer \u00e4n vad namnet avsl\u00f6jar; det \u00e4r en \u00e5tg\u00e4rd som orsakas av en sammandragning av orbicularis oculi, en muskel som omger \u00f6gonomr\u00e5det. \u00c4ven om r\u00f6relserna i orbicularis oculi p\u00e5verkar kinderna, sker m\u00e5nga f\u00f6r\u00e4ndringar i sj\u00e4lva verket i omr\u00e5det kring \u00f6gonh\u00e5lan. S\u00e5 l\u00e4nge du har en marginell vy av \u00f6gonvr\u00e5n eller en hudbit under det nedre \u00f6gonlocket kan du avg\u00f6ra om du kan avg\u00f6ra om <\/span><i><span style=\"font-weight: 300;\">k\u00e4pph\u00f6jning<\/span><\/i><span style=\"font-weight: 300;\"> sker. Liknande koncept g\u00e4ller f\u00f6r de andra \u00e5tg\u00e4rder som jag har listat i bilderna nedan.\u00a0<\/span><\/p><h2><span style=\"font-weight: 500;\">Kapaciteter med olika FOV:er<\/span><\/h2><p><span style=\"font-weight: 400;\">Detta diagram visar vilka aktionsenheter (AU) som \u00e4r m\u00f6jliga att uppt\u00e4cka med olika synf\u00e4lt. <\/span><span style=\"font-weight: 300;\">T\u00e4nk p\u00e5 att detta \u00e4r en kortfattad beskrivning av vad som kan vara m\u00f6jligt eller inte med olika FOV:s. (Om du vill veta mer om f\u00f6ruts\u00e4gelser f\u00f6r l\u00e4gre ansikten och kombinationsformer, <span style=\"color: #7b5182;\"><a style=\"color: #7b5182;\" href=\"https:\/\/melindaozel.com\/services\/\">Jag \u00e4r tillg\u00e4nglig f\u00f6r konsultationer<\/a>.<\/span>) F\u00f6rh\u00e5llandena kommer att f\u00f6r\u00e4ndras beroende p\u00e5 ytterligare faktorer, t.ex. kamerans vinkel och hur headsetet vilar p\u00e5 ansiktet. (\u00c4r headsetet tungt? Hur p\u00e5verkar dess vikt och tryck olika delar av ansiktet?).\u00a0<\/span><\/p><p><span style=\"font-weight: 300;\">Om du arbetar med ansiktssp\u00e5rning i headsetet, l\u00e5t inte antaganden begr\u00e4nsa din potential. Ansiktet \u00e4r komplicerat och fullt av ledtr\u00e5dar. Allt du beh\u00f6ver g\u00f6ra \u00e4r att hitta r\u00e4tt ledtr\u00e5dar, och du kan \u00e5stadkomma mycket med lite.\u00a0<\/span><b style=\"color: #000000; font-family: 'Helvetica Neue'; font-size: 20px; background-color: var(--base-3);\"><div class=\"mepr_error\"><p>Det \u00e5terst\u00e5ende inneh\u00e5llet \u00e4r avsett f\u00f6r <a href=\"https:\/\/melindaozel.com\/subscription-options\/\" target=\"_blank\" rel=\"noopener\">Premium-medlemmar<\/a> endast. Om du \u00e4r medlem, <a href=\"https:\/\/melindaozel.com\/login\/\" target=\"_blank\" rel=\"noopener\">skriva in sig<\/a> och g\u00e5 tillbaka till den h\u00e4r sidan :)!<\/p>\n<\/div><\/p>\t\t\t\t\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>","protected":false},"excerpt":{"rendered":"<p>VR:s f\u00f6rm\u00e5ga att f\u00f6rb\u00e4ttra n\u00e4rvaron p\u00e5 distans kan vara viktigare nu \u00e4n n\u00e5gonsin med tanke p\u00e5 de nya sociala begr\u00e4nsningarna till f\u00f6ljd av v\u00e5r nuvarande pandemi.<\/p>","protected":false},"author":60486633,"featured_media":2329,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[676756913,676756994,676757036,676757039,676757037,676756915,676757009,676756993],"tags":[],"class_list":["post-2317","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-action-units","category-ar-vr","category-au6","category-au7","category-cheek-raiser","category-facial-expressions","category-paid","category-tech","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin 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