đ? phan gi?i 4K

đ? phan gi?i 4K , con đ??c g?i la 4K , đ? c?p đ?n đ? phan gi?i man hinh ngang kho?ng 4.000 pixel . ^[1] Truy?n hinh k? thu?t s? va quay phim k? thu?t s? th??ng s? d?ng m?t s? đ? phan gi?i 4K khac nhau. Trong truy?n hinh va truy?n thong tieu dung, 3840 × 2160 (4K UHD ) la tieu chu?n 4K th?ng tr?, trong khi nganh cong nghi?p chi?u phim s? d?ng đ? phan gi?i 4096 × 2160 (DCI 4K).

Th? ph?n truy?n hinh 4K t?ng khi gia c?a no gi?m đang k? trong n?m 2014 ^[2] va 2015. đ?n n?m 2020, h?n m?t n?a s? h? gia đinh ? M? d? ki?n s? co TV co kh? n?ng 4K, ^[3] t? l? ch?p nh?n nhanh h?n nhi?u so v?i Full HD ( 1080p ). ^[4]

Tieu chu?n va thu?t ng? 4K [ s?a | s?a ma ngu?n ]

Thu?t ng? "4K" mang tinh chung chung va đ? c?p đ?n b?t k? đ? phan gi?i nao v?i s? đi?m ?nh ngang x?p x? 4.000. ^[5](p2) M?t s? đ? phan gi?i 4K khac nhau đa đ??c cac t? ch?c khac nhau chu?n hoa.

Chu?n k? thu?t h? th?ng r?p chi?u phim k? thu?t s? DCI [ s?a | s?a ma ngu?n ]

N?m 2005, Sang ki?n đi?n ?nh K? thu?t s? (DCI), m?t t? ch?c tieu chu?n n?i b?t trong nganh đi?n ?nh, đa xu?t b?n Thong s? k? thu?t H? th?ng đi?n ?nh K? thu?t s? . Thong s? k? thu?t nay thi?t l?p cac đ?nh d?ng ch?a 2K va 4K đ??c tieu chu?n hoa đ? s?n xu?t r?p chi?u phim k? thu?t s?, v?i đ? phan gi?i 2048 × 1080 va 4096 × 2160 t??ng ?ng. ^[6] (§4.3.1) đ? phan gi?i c?a n?i dung video ben trong tuan theo tieu chu?n SMPTE 428-1, ^[6] (§3.2.1) thi?t l?p cac đ? phan gi?i sau cho phan ph?i 4K: (p6)

4096 × 2160 (full frame, t? l? khung hinh 256: 135 ho?c ?1.90: 1)
3996 × 2160 (flat crop, t? l? khung hinh 1,85: 1)
4096 × 1716 (CinemaScop crop, t? l? khung hinh ?2.39: 1)

Tham kh?o [ s?a | s?a ma ngu?n ]

^ Goulekas, Karen (2001). Visual Effects in a Digital World . Morgan Kaufmann . tr. 587. ISBN 9780080520711 . 4K resolution: A general term referring to any digital image containing an X resolution of approximately 4096 pixels.
^ “First Quarter 2015 4K TV Growth Strong As Overall LCD TV Shipments Slow, IHS Says” . IHS Inc. ngay 8 thang 6 n?m 2015 . Truy c?p ngay 24 thang 11 n?m 2015 .
^ “The exploding 4K market: Nearly 50% of U.S homes to have UHD TVs by 2020 according to new study -” (b?ng ti?ng Anh). B?n g?c l?u tr? ngay 17 thang 8 n?m 2020 . Truy c?p ngay 25 thang 11 n?m 2017 .
^ Mark Hoelzel (ngay 2 thang 9 n?m 2014). “4K TV Shipments Are Ramping Up Much Faster Than HD TV Did In The Past” . Business Insider . Truy c?p ngay 24 thang 11 n?m 2015 .
^ CEA Market Research Report ? Ultra High-Definition: State of the Industry
^ ^a ^b “Digital Cinema System Specification Version 1.2 with Errata as of ngay 30 thang 8 n?m 2012 Incorporated” (PDF) . Digital Cinema Initiatives, LLC . ngay 10 thang 10 n?m 2012. B?n g?c (PDF) l?u tr? ngay 27 thang 5 n?m 2016 . Truy c?p ngay 29 thang 4 n?m 2018 .

[1] Goulekas, Karen (2001). Visual Effects in a Digital World . Morgan Kaufmann . tr. 587. ISBN 9780080520711 . 4K resolution: A general term referring to any digital image containing an X resolution of approximately 4096 pixels.

[IHS1q2015-2] “First Quarter 2015 4K TV Growth Strong As Overall LCD TV Shipments Slow, IHS Says” . IHS Inc. ngay 8 thang 6 n?m 2015 . Truy c?p ngay 24 thang 11 n?m 2015 .

[3] “The exploding 4K market: Nearly 50% of U.S homes to have UHD TVs by 2020 according to new study -” (b?ng ti?ng Anh). B?n g?c l?u tr? ngay 17 thang 8 n?m 2020 . Truy c?p ngay 25 thang 11 n?m 2017 .

[BIshipments-4] Mark Hoelzel (ngay 2 thang 9 n?m 2014). “4K TV Shipments Are Ramping Up Much Faster Than HD TV Did In The Past” . Business Insider . Truy c?p ngay 24 thang 11 n?m 2015 .

[UHD_State_of_the_Industry-5] CEA Market Research Report ? Ultra High-Definition: State of the Industry

[DCI_v1.2-6] “Digital Cinema System Specification Version 1.2 with Errata as of ngay 30 thang 8 n?m 2012 Incorporated” (PDF) . Digital Cinema Initiatives, LLC . ngay 10 thang 10 n?m 2012. B?n g?c (PDF) l?u tr? ngay 27 thang 5 n?m 2016 . Truy c?p ngay 29 thang 4 n?m 2018 .

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