{"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\/fi\/bypassing-vr-headset-occlusion-in-face-tracking\/","title":{"rendered":"VR-kuulokkeiden peitt\u00e4vyyden ohittaminen kasvojen seurannassa"},"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;\">Seuraa sit\u00e4, mit\u00e4 et n\u00e4e<\/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\/fi\/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\/fi\/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\/fi\/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\/fi\/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;\">Ty\u00f6skennelless\u00e4ni kasvojen seurannan parissa olen havainnut insin\u00f6\u00f6rien ja tutkijoiden keskuudessa taikauskon, jonka mukaan kasvojen kiintopisteit\u00e4 (esimerkiksi kulmakarvoja, silmi\u00e4 ja suuta) ei voi seurata, kun ne ovat kameran\u00e4kym\u00e4n ulkopuolella. T\u00e4m\u00e4 uskomus ei ole t\u00e4ysin totta. Sinun ei tarvitse n\u00e4hd\u00e4 kulmakarvoja tiet\u00e4\u00e4ksesi, kohoavatko ne vai rypistyv\u00e4tk\u00f6 ne, eik\u00e4 sinun tarvitse n\u00e4hd\u00e4 nen\u00e4\u00e4si tiet\u00e4\u00e4ksesi, milloin se rypistyy.<\/span><\/p><p><span style=\"font-weight: 300;\">Kasvomme pullistuvat, venyv\u00e4t ja rypistyv\u00e4t ainutlaatuisesti jokaisen kasvotoimen my\u00f6t\u00e4. Olen k\u00e4ytt\u00e4nyt n\u00e4it\u00e4 muutoksia kouluttaakseni merkint\u00e4laitteita tunnistamaan ja luokittelemaan tarkasti erillisi\u00e4 ilmeit\u00e4 pelk\u00e4n ihon liikkeen perusteella. Hyvin suunnatulla dokumentaatiolla, kattavalla esimerkkijoukolla ja laadukkaalla kameralla voit ekstrapoloida rajallisen m\u00e4\u00e4r\u00e4n tietoa rajallisella FOV:ll\u00e4.<\/span><\/p><p><span style=\"font-weight: 300;\">Katseenseurantaan tarvittava minimaalinen FOV-ala riitt\u00e4\u00e4 usein vain muutaman toiminnon seurantaan. N\u00e4kym\u00e4 A (alla olevassa kuvasarjassa) kuvastaa parhaiten sit\u00e4, milt\u00e4 katseenseurantaan perustuva n\u00e4kym\u00e4 voi n\u00e4ytt\u00e4\u00e4. Vaikka katseenseurantakameroiden p\u00e4\u00e4tavoitteena on kattaa juuri ja juuri riitt\u00e4v\u00e4sti silm\u00e4\u00e4 katseen muutosten havainnoimiseksi, sen mahdollisuudet ovat paljon suuremmat. Jopa t\u00e4ll\u00e4 keskitetyll\u00e4 n\u00e4kym\u00e4ll\u00e4 voidaan havaita viel\u00e4 <\/span><i><span style=\"font-weight: 300;\">yl\u00e4kannen korottaja <\/span><\/i><span style=\"font-weight: 300;\">(AU5), <\/span><i><span style=\"font-weight: 300;\">posken kohottaja <\/span><\/i><span style=\"font-weight: 300;\">(AU6) ja <\/span><i><span style=\"font-weight: 300;\">kannen kiristin<\/span><\/i><span style=\"font-weight: 300;\"> (AU7) suhteellisen suurella varmuudella. N\u00e4m\u00e4 toimet ovat hy\u00f6dyllisi\u00e4, koska niit\u00e4 voidaan k\u00e4ytt\u00e4\u00e4 huomion, reaktioiden ja sitoutumisen mittaamiseen; ne ovat my\u00f6s keskeisi\u00e4 signaaleja viestinn\u00e4ss\u00e4.<\/span><\/p><p><span style=\"font-weight: 300;\">Monet ihmiset saavat esteit\u00e4 toimintayksik\u00f6n nimist\u00e4, kuten <\/span><i><span style=\"font-weight: 300;\">posken kohottaja <\/span><\/i><span style=\"font-weight: 300;\">ja olettaa: \"Emme voi seurata <\/span><i><span style=\"font-weight: 300;\">posken kohottaja <\/span><\/i><span style=\"font-weight: 300;\">koska meid\u00e4n FOV ei kata posken aluetta.\" Mutta <\/span><i><span style=\"font-weight: 300;\">posken kohottaja <\/span><\/i><span style=\"font-weight: 300;\">on enemm\u00e4n kuin sen nimi paljastaa; se on silm\u00e4nymp\u00e4rysihoa ymp\u00e4r\u00f6iv\u00e4n lihaksen, orbicularis oculi, supistumisen aiheuttama toiminto. Vaikka orbicularis oculi -lihaksen liikkeet vaikuttavatkin poskiin, monet muutokset tapahtuvat silm\u00e4nymp\u00e4rysihon alueella. Kunhan sinulla on marginaalinen n\u00e4kym\u00e4 silm\u00e4nkulmiin tai ihon pala alaluomen alla, voit m\u00e4\u00e4ritt\u00e4\u00e4, onko <\/span><i><span style=\"font-weight: 300;\">posken kohottaja<\/span><\/i><span style=\"font-weight: 300;\"> tapahtuu. Samanlaisia k\u00e4sitteit\u00e4 sovelletaan my\u00f6s muihin alla olevissa kuvissa lueteltuihin toimiin.\u00a0<\/span><\/p><h2><span style=\"font-weight: 500;\">Kyvyt eri FOV:ien kanssa<\/span><\/h2><p><span style=\"font-weight: 400;\">T\u00e4m\u00e4 kaavio osoittaa, mitk\u00e4 toimintayksik\u00f6t (AU) on mahdollista havaita eri n\u00e4k\u00f6kentill\u00e4. <\/span><span style=\"font-weight: 300;\">Pid\u00e4 mieless\u00e4, ett\u00e4 t\u00e4m\u00e4 on lyhennetty erittely siit\u00e4, mik\u00e4 voi olla mahdollista eri FOV:ien kanssa ja mik\u00e4 ei. (Jos haluat oppia ennusteita alempien kasvojen ja yhdistelm\u00e4muotojen osalta, <span style=\"color: #7b5182;\"><a style=\"color: #7b5182;\" href=\"https:\/\/melindaozel.com\/services\/\">Olen k\u00e4ytett\u00e4viss\u00e4 konsultaatiota varten<\/a>.<\/span>) Olosuhteet muuttuvat muiden tekij\u00f6iden, kuten kamerakulman ja kuulokkeiden asennon perusteella. (Onko kuuloke painava? Miten sen paino ja paine vaikuttavat kasvojen eri alueisiin?).\u00a0<\/span><\/p><p><span style=\"font-weight: 300;\">Jos ty\u00f6skentelet kuulokkeen sis\u00e4isen kasvojenseurannan parissa, \u00e4l\u00e4 anna oletusten rajoittaa mahdollisuuksiasi. Kasvot ovat monimutkaiset ja t\u00e4ynn\u00e4 vihjeit\u00e4. Sinun on vain l\u00f6ydett\u00e4v\u00e4 oikeat vihjeet, ja voit saada paljon aikaan pienest\u00e4.\u00a0<\/span><b style=\"color: #000000; font-family: 'Helvetica Neue'; font-size: 20px; background-color: var(--base-3);\"><div class=\"mepr_error\"><p>Loput sis\u00e4ll\u00f6st\u00e4 on tarkoitettu <a href=\"https:\/\/melindaozel.com\/subscription-options\/\" target=\"_blank\" rel=\"noopener\">Premium-j\u00e4senet<\/a> vain. Jos olet j\u00e4sen, <a href=\"https:\/\/melindaozel.com\/login\/\" target=\"_blank\" rel=\"noopener\">kirjaudu sis\u00e4\u00e4n<\/a> ja palaa t\u00e4lle sivulle :)!<\/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:n kyky parantaa et\u00e4l\u00e4sn\u00e4oloa voi olla t\u00e4rke\u00e4mp\u00e4\u00e4 kuin koskaan, kun otetaan huomioon nykyisest\u00e4 pandemiasta johtuvat uudet sosiaaliset rajoitukset.<\/p>","protected":false},"author":60486633,"featured_media":2329,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"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 v27.1 (Yoast SEO v27.1.1) - 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