{"id":5377,"date":"2022-04-02T21:55:23","date_gmt":"2022-04-02T18:55:23","guid":{"rendered":"https:\/\/kutaybilen.com.tr\/?p=5377"},"modified":"2022-04-02T21:55:23","modified_gmt":"2022-04-02T18:55:23","slug":"akilli-telefon-kameralarindaki-quad-bayer-filtresi-nedir","status":"publish","type":"post","link":"https:\/\/kutaybilen.com.tr\/?p=5377","title":{"rendered":"Ak\u0131ll\u0131 Telefon Kameralar\u0131ndaki ‘Quad Bayer Filtresi’ Nedir?"},"content":{"rendered":"

Birinci 48 MP kameral\u0131 ak\u0131ll\u0131 telefon Aral\u0131k 2018\u2019de \u00e7\u0131k\u0131\u015f yapt\u0131. \u0130\u015fin farkl\u0131 yan\u0131 ise bu ayg\u0131tlar\u0131n b\u00fcy\u00fc k\u0131sm\u0131n\u0131n\u00a0orta segment telefonlar olmas\u0131. Amiral gemisi ak\u0131ll\u0131 telefonlar\u0131n 12 MP\u2019lik sens\u00f6rleri kullanmas\u0131yd\u0131. Bu t\u00fcrl\u00fc bir durumun ortaya \u00e7\u0131kmas\u0131n\u0131n sebebiyse Quad Bayer filtresi.<\/p>\n

Nedir bu Bayer filtresi?<\/strong><\/b><\/p>\n

<\/p>\n

Temelden alacak olursak Bayer filtresi, dijital sens\u00f6rlerin renkli foto\u011fraflar \u00e7ekmesini sa\u011flayan k\u0131rm\u0131z\u0131, ye\u015fil ve mavi filtrelerden olu\u015fan bir renk mozai\u011fi. Yar\u0131 iletken pikseller rengi g\u00f6rmedi\u011fi ve yaln\u0131zca \u00e7arpan \u0131\u015f\u0131\u011f\u0131 g\u00f6rd\u00fckleri i\u00e7in, yaln\u0131zca siyah beyaz foto\u011fraflar \u00e7ekebilirler. Yani Bayer filtresi \u0131\u015f\u0131\u011f\u0131n, bu \u00fc\u00e7 renkteki her bir piksele ula\u015fmas\u0131n\u0131 sa\u011fl\u0131yor.<\/p>\n

12 MP\u2019lik sens\u00f6r\u00fcn \u00e7al\u0131\u015fma haline bakacak olursak, ye\u015fil toplamda 6 milyon piksel g\u00f6r\u00fcrken k\u0131rm\u0131z\u0131 ve mavinin her biri \u00fc\u00e7er milyon piksel g\u00f6r\u00fcyor. Ye\u015filin daha \u00e7ok piksele sahip olmas\u0131n\u0131n sebebi insan g\u00f6z\u00fcn\u00fcn en \u00e7ok bu renge hassas olmas\u0131. Tam bir 12 MP\u2019lik \u00e7\u00f6z\u00fcn\u00fcrl\u00fc\u011f\u00fc interpole etmek i\u00e7in \u201cdemosaicing\u201d ismi verilen bir algoritma kullan\u0131l\u0131yor.<\/p>\n

Quad Bayer filtresi bir yanl\u0131\u015f isimlendirme. Asl\u0131nda ola\u011fan Bayer filtresiyle epeyce misal. Ortadaki fark, filtreden de\u011fil gerisindeki sens\u00f6rden kaynaklan\u0131yor. Yeni sens\u00f6rler, d\u00f6rt pikseli her bir renk kutusunun ard\u0131na koyuyor. Yani 48 MP Quad Bayer sens\u00f6rler 12 MP\u2019lik sens\u00f6rlerden \u00e7ok da fazla ayr\u0131nt\u0131 sunmuyor.<\/p>\n

Quad Bayer filtresini nerede bulabilirsiniz?<\/strong><\/b><\/p>\n

<\/p>\n

Huawei\u2019nin P20 Pro, Mate 20 Pro ve Mate 20 X ayg\u0131tlar\u0131ndaki 40 MP\u2019lik sens\u00f6rlerle ba\u015flayan 48 MP sens\u00f6r trendi bug\u00fcn art\u0131k bir\u00e7ok ayg\u0131tta bulunuyor. \u00c7inli ak\u0131ll\u0131 telefon \u00fcreticisi P30 ve P30 Pro ayg\u0131tlar\u0131nda K\u0131rm\u0131z\u0131, Ye\u015fil, Ye\u015fil, Mavi yerine K\u0131rm\u0131z\u0131, Sar\u0131, Sar\u0131, Mavi kullanarak bunun farkl\u0131 bir s\u00fcr\u00fcm\u00fcn\u00fc kullansa da \u00e7al\u0131\u015fma prensibi birebir.<\/p>\n

Ayr\u0131yeten Vivo V15 Pro ve Samsung Galaxy A70 \u00fczere Quad Bayer filtreli 32 MP\u2019lik selfie kameras\u0131 olan bir\u00e7ok telefon da bulunuyor. Bunlar, t\u0131pk\u0131 piksel geni\u015fli\u011fine sahip olsa da (0,8 um) fizik\u00ee olarak k\u00fc\u00e7\u00fck olduklar\u0131 i\u00e7in daha d\u00fc\u015f\u00fck \u00e7\u00f6z\u00fcn\u00fcrl\u00fc\u011fe sahipler.<\/p>\n

Samsung, son olarak 64 MP Quad Bayer sens\u00f6rlerini duyurmu\u015ftu. Burada piksel boyutu birebir kalsa da sens\u00f6rlerin boyutunda de\u011fi\u015fikli\u011fe gidildi.<\/p>\n

Quad Bayer sens\u00f6r neler yapabilir?<\/strong><\/b><\/p>\n

<\/p>\n

\u015eu an bir\u00e7ok ayg\u0131tta ak\u0131ll\u0131 telefonlara konulmu\u015f olan en b\u00fcy\u00fck sens\u00f6rler bulunuyor. Mesela Sony\u2019nin 8 mm diyagonal \u00f6l\u00e7\u00fclere sahip olan ve en tan\u0131nan 48 MP\u2019lik sens\u00f6rlerden olan IMX 586\u2019s\u0131. Bir oburu yeniden Sony\u2019nin Pixel 3\u2019lerde kullan\u0131lan 7,06 mm diyagonal \u00f6l\u00e7\u00fclere sahip IMX363\u2019\u00fc. Bir oburu Samsung\u2019\u0131n S10\u2019larda kulland\u0131\u011f\u0131 7,06 mm diyagonal \u00f6l\u00e7\u00fclere sahip olan S5K2L4\u2019\u00fc. T\u00fcm bunlar y\u00fczey alan\u0131ndan %30\u2019luk kazan\u0131m sa\u011fl\u0131yor.<\/p>\n

G\u00fcn\u00fcm\u00fczde \u201c1,6 um\u201d bilhassa \u015firketlerin pazarlama departmanlar\u0131 \u00f6v\u00fcnmek i\u00e7in hayli s\u0131k kullan\u0131l\u0131yor lakin d\u00fc\u015f\u00fck \u0131\u015f\u0131k performans\u0131 konusundaki t\u00fcm \u00f6vg\u00fcy\u00fc bu almamal\u0131. Kumlanma epey rastlant\u0131sal bir s\u00fcre\u00e7 ve \u015fayet ki klasik sens\u00f6rlerin b\u00fcy\u00fck pikselleri bir sinyal yerine kumlanma yakalarsa geriye yapacak \u00e7ok az \u015fey kal\u0131r.<\/p>\n

\u015eayet ki Quad Bayer sens\u00f6rlerindeki d\u00f6rt pikselden bir tanesi kumlanma yakalarsa, bu yaln\u0131zca %25\u2019lik bir bilgi kayb\u0131 manas\u0131na gelir ve manzaran\u0131n sertli\u011fini etkilemiyor.<\/p>\n

<\/p>\n

Alternatif olarak sens\u00f6r ikiye b\u00f6l\u00fcnebiliyor ve bir tanesi k\u0131sa pozlamalar yakalarken oburu uzun pozlamalar yakalar. Bu da g\u00fcnd\u00fcz \u0131\u015f\u0131\u011f\u0131nda ger\u00e7ek vakitli HDR imajlar\u0131 yakalamak i\u00e7in kullan\u0131l\u0131r.<\/p>\n

Quad Bayer filtresinin ne yapt\u0131\u011f\u0131n\u0131 en kolay manas\u0131yla d\u00fc\u015f\u00fcnecek olursak kamera yaz\u0131l\u0131m\u0131n\u0131n birebir anda iki foto\u011fraf \u00e7ekmesine m\u00fcsaade veriyor ve bu da imaj i\u015flenmesine imkan sa\u011fl\u0131yor. \u0130\u015fte bu y\u00fczden \u00e7a\u011fda\u015f ak\u0131ll\u0131 telefonlar donan\u0131m \u00e7ok da fark etmeksizin kaliteli foto\u011fraflar \u00e7ekebiliyor.<\/p>\n

Pekala Quad Bayer ne yapamaz?<\/strong><\/b><\/p>\n

<\/p>\n

(Sol 12 MP, sa\u011f 48 MP)<\/p>\n

Quad Bayer filtrede farkl\u0131 renklerin pikselleri ba\u015fkad\u0131r yani demosaicing daha az tesirlidir. Asl\u0131nda 48 MP\u2019de 12 MP\u2019den 4 kat daha fazla ayr\u0131nt\u0131 yakalayam\u0131yorsunuz.<\/p>\n

Demosaicing algoritmas\u0131n\u0131 i\u015flenmemi\u015f 48 MP data \u00fczerinde \u00e7al\u0131\u015ft\u0131rmak imajlarda daha keskin sonu\u00e7lar elde edilmesini sa\u011flar lakin bu telefondan telefona ve sahneden sahneye de\u011fi\u015fir. \u015eayet ki \u00e7ekilen foto\u011frafta ayr\u0131nt\u0131lar \u00e7ok de\u011ferliyse g\u00fcd\u00fclecek en \u00e2l\u00e2 strateji iki modda da foto\u011fraf\u0131 \u00e7ekip ortas\u0131ndan en g\u00fczel olan\u0131 se\u00e7mek olacakt\u0131r.<\/p>\n

Yani birden fazla vakit 48 MP ile 12 MP\u2019lik sens\u00f6rler t\u0131pk\u0131 imgeleri elde ederken 48 MP\u2019lik sens\u00f6r\u00fcn foto\u011fraflar\u0131 daha b\u00fcy\u00fck olur. M\u00fcnasebetiyle depolama alan\u0131n\u0131zda gereksiz yer kaplar.<\/p>\n

<\/div>\n
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<\/div>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Birinci 48 MP kameral\u0131 ak\u0131ll\u0131 telefon Aral\u0131k 2018\u2019de \u00e7\u0131k\u0131\u015f yapt\u0131. \u0130\u015fin farkl\u0131 yan\u0131 ise bu ayg\u0131tlar\u0131n b\u00fcy\u00fc k\u0131sm\u0131n\u0131n\u00a0orta segment telefonlar olmas\u0131 …<\/p>\n","protected":false},"author":1,"featured_media":5378,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[851],"tags":[607,1063,1270,875,1385],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts\/5377"}],"collection":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5377"}],"version-history":[{"count":1,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts\/5377\/revisions"}],"predecessor-version":[{"id":5379,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts\/5377\/revisions\/5379"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/media\/5378"}],"wp:attachment":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5377"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5377"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}