{"id":13230,"date":"2024-09-13T10:49:32","date_gmt":"2024-09-13T10:49:32","guid":{"rendered":"https:\/\/dgzx.hk?p=13230"},"modified":"2024-09-13T10:49:45","modified_gmt":"2024-09-13T10:49:45","slug":"ov48c40-cmos-camera-image-sensor","status":"publish","type":"post","link":"https:\/\/dgzx.hk\/vi\/cam-bien-hinh-anh-camera-cmos-ov48c40\/","title":{"rendered":"C\u1ea3m bi\u1ebfn h\u00ecnh \u1ea3nh m\u00e1y \u1ea3nh OV48C40 1\/1.32\u2033CMOS 48M(8064*6048)"},"content":{"rendered":"

C\u00e1c OV48C40<\/span><\/strong> c\u1ea3m bi\u1ebfn h\u00ecnh \u1ea3nh m\u00e0u l\u00e0 c\u1ea3m bi\u1ebfn h\u00ecnh \u1ea3nh CMOS hi\u1ec7u su\u1ea5t cao v\u1edbi b\u1ed9 l\u1ecdc m\u00e0u 4 th\u00e0nh ph\u1ea7n v\u00e0 c\u00f4ng ngh\u1ec7 chip x\u1ebfp ch\u1ed3ng, cung c\u1ea5p 48 mega-dot (8064\u00d76048) \u1edf t\u1ed1c \u0111\u1ed9 15fps. N\u00f3 cung c\u1ea5p nhi\u1ec1u t\u00f9y ch\u1ecdn \u0111\u1ed9 ph\u00e2n gi\u1ea3i<\/span><\/p>\n

 trong khi v\u1eabn duy tr\u00ec tr\u01b0\u1eddng nh\u00ecn \u0111\u1ea7y \u0111\u1ee7. Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh \u0111\u1ed9 ph\u00e2n gi\u1ea3i h\u00ecnh \u1ea3nh, t\u1ed1c \u0111\u1ed9 khung h\u00ecnh v\u00e0 c\u00e1c th\u00f4ng s\u1ed1 ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh. Bus \u0111i\u1ec1u khi\u1ec3n camera n\u1ed1i ti\u1ebfp (SCCB) ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n c\u00e1c ch\u1ee9c n\u0103ng c\u1ee7a camera. OV48C40 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ee5p \u1ea3nh \u0111\u1ed9 ph\u00e2n gi\u1ea3i 80fps 12 mega-dot (40fps v\u1edbi \u0111\u1ea7u ra HDR), cho ph\u00e9p ch\u1ee5p li\u00ean t\u1ee5c \u1edf \u0111\u1ed9 ph\u00e2n gi\u1ea3i 12 megapixel. OV48C 40 c\u00f3 m\u1ea3ng h\u00ecnh \u1ea3nh 48 mega-dot ho\u00e0n ch\u1ec9nh, bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c ch\u1ee9c n\u0103ng qu\u1ea3n l\u00fd h\u00ecnh \u1ea3nh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o gi\u1ea3i ph\u00e1p ch\u1ee5p \u1ea3nh ch\u1ea5t l\u01b0\u1ee3ng cao cho \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh di \u0111\u1ed9ng c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao. T\u1ea5t c\u1ea3 c\u00e1c ch\u1ee9c n\u0103ng x\u1eed l\u00fd h\u00ecnh \u1ea3nh c\u1ea7n thi\u1ebft c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh th\u00f4ng qua giao di\u1ec7n SCCB. Ngo\u00e0i ra, c\u1ea3m bi\u1ebfn h\u00ecnh \u1ea3nh OmniVision s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn \u0111\u1ed9c quy\u1ec1n \u0111\u1ec3 c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh b\u1eb1ng c\u00e1ch gi\u1ea3m ho\u1eb7c lo\u1ea1i b\u1ecf \u00f4 nhi\u1ec5m h\u00ecnh \u1ea3nh do \u00e1nh s\u00e1ng\/ngu\u1ed3n \u0111i\u1ec7n th\u00f4ng th\u01b0\u1eddng (nh\u01b0 nhi\u1ec5u m\u1eabu c\u1ed1 \u0111\u1ecbnh, \u0111u\u00f4i, v.v.), t\u1ea1o ra h\u00ecnh \u1ea3nh m\u00e0u s\u1eafc r\u00f5 n\u00e9t v\u00e0 ho\u00e0n to\u00e0n \u1ed5n \u0111\u1ecbnh.<\/span><\/p>\n

\u0110\u1eb7c tr\u01b0ng:<\/span><\/strong><\/p>\n

\u25cf T\u1ef1 \u0111\u1ed9ng hi\u1ec7u chu\u1ea9n m\u1ee9c \u0111\u1ed9 \u0111en (ABLC)<\/span><\/p>\n

\u25cf Ki\u1ec3m so\u00e1t c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh t\u1ed1c \u0111\u1ed9 khung h\u00ecnh, ph\u1ea3n chi\u1ebfu v\u00e0 l\u1eadt, h\u1ee3p nh\u1ea5t, c\u1eaft x\u00e9n v\u00e0 t\u1ea1o c\u1eeda s\u1ed5<\/span><\/p>\n

\u25cf H\u1ed7 tr\u1ee3 DPC \u0111\u1ed9ng<\/span><\/p>\n

\u25cf \u0110\u1ecbnh d\u1ea1ng \u0111\u1ea7u ra \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3: 10-bit RGB 4C kh\u00f4ng HDR, 10-bit RGB Bayer kh\u00f4ng HDR v\u00e0 l\u00ean \u0111\u1ebfn 14-bit Bayer HDR<\/span><\/p>\n

\u25cfH\u1ed7 tr\u1ee3 l\u1ea5y m\u1eabu theo chi\u1ec1u ngang v\u00e0 chi\u1ec1u d\u1ecdc<\/span><\/p>\n

\u25cfH\u1ed7 tr\u1ee3 k\u00edch th\u01b0\u1edbc h\u00ecnh \u1ea3nh th\u00f4ng th\u01b0\u1eddng: 8064\u00d76048, 4032\u00d73023, 3840\u00d72160, 1920\u00d71080, 1280\u00d7720<\/span><\/p>\n

\u25cfGiao di\u1ec7n SCCB n\u1ed1i ti\u1ebfp ti\u00eau chu\u1ea9n<\/span><\/p>\n

\u25cfGiao di\u1ec7n MIPI TX l\u00ean \u0111\u1ebfn 4 l\u00e0n, l\u00ean \u0111\u1ebfn 2,6 Gbps\/l\u00e0n<\/span><\/p>\n

\u25cfGiao di\u1ec7n CPHY 2\/3 trio, l\u00ean t\u1edbi 2,1 Gsps\/trio<\/span><\/p>\n

\u25cfH\u1ed7 tr\u1ee3 PDAF Type 2 4C HS<\/span><\/p>\n

\u25cfH\u1ed7 tr\u1ee3 4 cell: Ph\u00e2n lo\u1ea1i 4 cell, \u0111\u1ea7y \u0111\u1ee7 4 cell<\/span><\/p>\n

\u25cfH\u1ed7 tr\u1ee3 HDR:<\/span><\/p>\n

\u0110\u1ea7u ra DCG v\u1edbi s\u1ef1 k\u1ebft h\u1ee3p tr\u00ean chip<\/span><\/p>\n

Ph\u01a1i s\u00e1ng HDR 2 so le th\u00f4ng qua s\u1ef1 k\u1ebft h\u1ee3p tr\u00ean chip<\/span><\/p>\n

Th\u1eddi gian ph\u01a1i s\u00e1ng HDR 2\/3 so le<\/span><\/p>\n

\u25cf B\u1ed9 chuy\u1ec3n \u0111\u1ed5i 4 l\u00f5i sang Bayer tr\u00ean chip<\/span><\/p>\n

\u25cfBa v\u00f2ng kh\u00f3a pha tr\u00ean chip (PLL)<\/span><\/p>\n

\u25cfKh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n I\/O c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh<\/span><\/p>\n

\u25cfC\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 t\u00edch h\u1ee3p<\/span><\/p>\n

\u25cf\u0110i\u1ec3m DCG 1.197\u00b5m<\/span><\/p>\n

Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt:<\/strong><\/span><\/p>\n

\u25cfK\u00edch th\u01b0\u1edbc m\u1ea3ng ho\u1ea1t \u0111\u1ed9ng: 8064\u00d76048<\/span><\/p>\n

\u25cfNgu\u1ed3n \u0111i\u1ec7n:<\/span><\/p>\n

-T\u01b0\u01a1ng t\u1ef1: 1.1V<\/span><\/p>\n

- T\u01b0\u01a1ng t\u1ef1: 2.8V<\/span><\/p>\n

-\u0110\u1ea7u v\u00e0o\/ra: 1.8V<\/span><\/p>\n

\u25cfY\u00eau c\u1ea7u v\u1ec1 \u0111i\u1ec7n n\u0103ng:<\/span><\/p>\n

-Ho\u1ea1t \u0111\u1ed9ng: 560mW (48MP@15fps)<\/span><\/p>\n

- Ch\u1ebf \u0111\u1ed9 ch\u1edd: <10\u00b5A<\/span><\/p>\n

\u25cfPh\u1ea1m vi nhi\u1ec7t \u0111\u1ed9:<\/span><\/p>\n

- Ho\u1ea1t \u0111\u1ed9ng: Nhi\u1ec7t \u0111\u1ed9 ti\u1ebfp gi\u00e1p -30\u00b0C \u0111\u1ebfn 85\u00b0C<\/span><\/p>\n

- H\u00ecnh \u1ea3nh \u1ed5n \u0111\u1ecbnh: Nhi\u1ec7t \u0111\u1ed9 giao thoa 0\u00b0C \u0111\u1ebfn 60\u00b0C<\/span><\/p>\n

\u25cf\u0110\u1ecbnh d\u1ea1ng \u0111\u1ea7u ra: HDRRGBRAW10\/12\/14-bit<\/span><\/p>\n

\u25cfT\u1ea7n s\u1ed1 xung nh\u1ecbp \u0111\u1ea7u v\u00e0o: 6~27MHz<\/span><\/p>\n

\u25cfK\u00edch th\u01b0\u1edbc \u1ed1ng k\u00ednh: 1\/1.32"<\/span><\/p>\n

\u25cfG\u00f3c tia ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh: 36,1\u00b0 kh\u00f4ng tuy\u1ebfn t\u00ednh (xem B\u1ea3ng 9-3)<\/span><\/p>\n

\u25cfT\u1ed1c \u0111\u1ed9 truy\u1ec1n h\u00ecnh \u1ea3nh t\u1ed1i \u0111a: 8064\u00d76048: 15fps<\/span><\/p>\n

\u25cf\u0110\u1ed9 ph\u01a1i s\u00e1ng t\u1ed1i \u0111a: VTS-31 lines<\/span><\/p>\n

\u25cf\u0110\u1ed9 ph\u01a1i s\u00e1ng t\u1ed1i thi\u1ec3u: 8 d\u00f2ng<\/span><\/p>\n

\u25cf\u0110\u1ed9 nh\u1ea1y: 4.700 e-\/Lux-gi\u00e2y<\/span><\/p>\n

\u25cfT\u1ef7 l\u1ec7 t\u00edn hi\u1ec7u tr\u00ean nhi\u1ec5u t\u1ed1i \u0111a: 55dB<\/span><\/p>\n

\u25cfPh\u1ea1m vi \u0111\u1ed9ng: S\u1ebd \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh @t\u0103ng 16 l\u1ea7n<\/span><\/p>\n

\u25cfK\u00eanh qu\u00e9t: qu\u00e9t li\u00ean t\u1ee5c<\/span><\/p>\n

\u25cfK\u00edch th\u01b0\u1edbc \u0111i\u1ec3m \u1ea3nh: 1.197\u00b5mx1.197\u00b5m<\/span><\/p>\n

\u25cfDi\u1ec7n t\u00edch h\u00ecnh \u1ea3nh: 9690.912\u00b5mx7277.76\u00b5m<\/span><\/p>\n

\u25cfK\u00edch th\u01b0\u1edbc chip: 10983,6 \u00b5mx8436,6\u00b5m (COB), 11033,6\u00b5mx8486,6\u00b5m (RW)<\/span><\/p>\n

Nh\u1eefng c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 c\u1ea3m bi\u1ebfn h\u00ecnh \u1ea3nh camera OV48C40:<\/span><\/span><\/strong><\/p>\n

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C\u00e2u h\u1ecfi 1: C\u1ea3m bi\u1ebfn h\u00ecnh \u1ea3nh c\u1ee7a camera OV48C40 l\u00e0 lo\u1ea1i c\u1ea3m bi\u1ebfn n\u00e0o?<\/span><\/strong><\/p>\n

A1: OV48C40 l\u00e0 c\u1ea3m bi\u1ebfn h\u00ecnh \u1ea3nh CMOS (b\u00e1n d\u1eabn oxit kim lo\u1ea1i b\u1ed5 sung). C\u1ea3m bi\u1ebfn CMOS \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong m\u00e1y \u1ea3nh k\u1ef9 thu\u1eadt s\u1ed1, \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c v\u00ec m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p, kh\u1ea3 n\u0103ng t\u00edch h\u1ee3p cao v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh t\u1ed1t.<\/span><\/p>\n

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C\u00e2u h\u1ecfi 2: Nh\u1eefng t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a OV48C40 l\u00e0 g\u00ec?<\/span><\/strong><\/p>\n

A2: C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a OV48C40 bao g\u1ed3m:<\/span><\/p>\n

\u0110\u1ed9 ph\u00e2n gi\u1ea3i cao: h\u1ed7 tr\u1ee3 ch\u1ee5p \u1ea3nh c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao v\u00e0 cung c\u1ea5p chi ti\u1ebft h\u00ecnh \u1ea3nh tuy\u1ec7t v\u1eddi.<\/span><\/p>\n

Th\u1ea5u k\u00ednh c\u1ea3m quang l\u1edbn: V\u1edbi di\u1ec7n t\u00edch th\u1ea5u k\u00ednh c\u1ea3m quang l\u1edbn h\u01a1n, \u1ed1ng k\u00ednh c\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c nhi\u1ec1u \u00e1nh s\u00e1ng h\u01a1n v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u \u1ee9ng ch\u1ee5p trong m\u00f4i tr\u01b0\u1eddng t\u1ed1i.<\/span><\/p>\n

\u0110\u1ea7u ra \u0111a ch\u1ebf \u0111\u1ed9: h\u1ed7 tr\u1ee3 nhi\u1ec1u ch\u1ebf \u0111\u1ed9 \u0111\u1ea7u ra pixel \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u ch\u1ee5p \u1ea3nh \u1edf nhi\u1ec1u c\u1ea3nh kh\u00e1c nhau.<\/span><\/p>\n

C\u00f4ng ngh\u1ec7 HDR ti\u00ean ti\u1ebfn: h\u1ed7 tr\u1ee3 ch\u1ee9c n\u0103ng HDR c\u1ea5p chip, c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb nhi\u1ec1u chi ti\u1ebft h\u01a1n trong c\u00e1c c\u1ea3nh c\u00f3 \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n cao.<\/span><\/p>\n

Quay video t\u1ed1c \u0111\u1ed9 cao: h\u1ed7 tr\u1ee3 quay video t\u1ed1c \u0111\u1ed9 khung h\u00ecnh cao, th\u00edch h\u1ee3p \u0111\u1ec3 ghi l\u1ea1i c\u00e1c c\u1ea3nh \u0111\u1ed9ng.<\/span><\/p>\n


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C\u00e2u 3: Nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p c\u1ee7a c\u1ea3m bi\u1ebfn h\u00ecnh \u1ea3nh camera OV48C40 l\u00e0 g\u00ec?<\/span><\/strong><\/p>\n

A3: C\u1ea3m bi\u1ebfn h\u00ecnh \u1ea3nh c\u1ee7a camera OV48C40 c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p sau \u0111\u00e2y trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng:<\/span><\/p>\n

T\u0103ng nhi\u1ec5u h\u00ecnh \u1ea3nh: Sau khi ho\u1ea1t \u0111\u1ed9ng trong th\u1eddi gian d\u00e0i, do nhi\u1ec7t \u0111\u1ed9 t\u0103ng, s\u1ef1 k\u00edch th\u00edch n\u1ed9i t\u1ea1i c\u1ee7a v\u1eadt li\u1ec7u b\u00e1n d\u1eabn t\u0103ng l\u00ean, d\u1eabn \u0111\u1ebfn t\u1ef7 l\u1ec7 t\u00edn hi\u1ec7u tr\u00ean nhi\u1ec5u gi\u1ea3m v\u00e0 t\u0103ng nhi\u1ec5u h\u00ecnh \u1ea3nh.<\/span><\/p>\n

M\u00e0u s\u1eafc h\u00ecnh \u1ea3nh b\u1ecb nh\u00f2e ho\u1eb7c s\u1ecdc: \u0110i\u1ec7n \u00e1p analog kh\u00f4ng \u1ed5n \u0111\u1ecbnh ho\u1eb7c s\u1ef1 c\u1ed1 v\u1edbi \u0111\u01b0\u1eddng d\u1eef li\u1ec7u (ch\u1eb3ng h\u1ea1n nh\u01b0 ng\u1eafn m\u1ea1ch ho\u1eb7c h\u1edf m\u1ea1ch) c\u00f3 th\u1ec3 khi\u1ebfn m\u00e0u s\u1eafc h\u00ecnh \u1ea3nh b\u1ecb nh\u00f2e ho\u1eb7c s\u1ecdc.<\/span><\/p>\n

H\u00ecnh \u1ea3nh b\u1ecb m\u1edd ho\u1eb7c m\u1ea5t n\u00e9t: \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn c\u00e1c th\u00e0nh ph\u1ea7n l\u1ea5y n\u00e9t c\u1ee7a \u1ed1ng k\u00ednh ho\u1eb7c c\u00e0i \u0111\u1eb7t m\u00e1y \u1ea3nh ch\u1ee9 kh\u00f4ng ph\u1ea3i do c\u1ea3m bi\u1ebfn g\u00e2y ra tr\u1ef1c ti\u1ebfp, nh\u01b0ng s\u1ef1 c\u1ed1 c\u1ee7a c\u1ea3m bi\u1ebfn c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng gi\u00e1n ti\u1ebfp \u0111\u1ebfn hi\u1ec7u \u1ee9ng l\u1ea5y n\u00e9t.<\/span><\/p>\n

Nhi\u1ec5u nhi\u1ec7t: Trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao, c\u1ea3m bi\u1ebfn c\u00f3 th\u1ec3 t\u1ea1o ra nhi\u1ec5u nhi\u1ec7t, xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng c\u00e1c v\u1ec7t ho\u1eb7c \u0111\u1ed1m m\u00e0u kh\u00f4ng \u0111\u1ec1u tr\u00ean h\u00ecnh \u1ea3nh.<\/span><\/p>\n


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C\u00e2u h\u1ecfi 4: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 nhi\u1ec5u t\u0103ng cao trong c\u1ea3m bi\u1ebfn h\u00ecnh \u1ea3nh c\u1ee7a camera OV48C40?<\/span><\/strong><\/p>\n

A4: C\u00e1c gi\u1ea3i ph\u00e1p cho v\u1ea5n \u0111\u1ec1 ti\u1ebfng \u1ed3n t\u0103ng cao bao g\u1ed3m:<\/span><\/p>\n

T\u1ed1i \u01b0u h\u00f3a t\u1ea3n nhi\u1ec7t: \u0110\u1ea3m b\u1ea3o camera c\u00f3 kh\u1ea3 n\u0103ng t\u1ea3n nhi\u1ec7t t\u1ed1t trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 tr\u00e1nh t\u00ecnh tr\u1ea1ng c\u1ea3m bi\u1ebfn qu\u00e1 nhi\u1ec7t.<\/span><\/p>\n

\u0110i\u1ec1u ch\u1ec9nh c\u00e0i \u0111\u1eb7t m\u00e1y \u1ea3nh: Gi\u1ea3m \u0111\u1ed9 nh\u1ea1y ISO v\u00e0 gi\u1ea3m th\u1eddi gian ph\u01a1i s\u00e1ng \u0111\u1ec3 gi\u1ea3m nhi\u1ec5u.<\/span><\/p>\n

X\u1eed l\u00fd ph\u1ea7n m\u1ec1m: S\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m x\u1eed l\u00fd h\u00ecnh \u1ea3nh \u0111\u1ec3 gi\u1ea3m nhi\u1ec5u trong h\u00ecnh \u1ea3nh.<\/span><\/p>\n

S\u1eeda ch\u1eefa chuy\u00ean nghi\u1ec7p: N\u1ebfu s\u1ef1 c\u1ed1 v\u1eabn ti\u1ebfp di\u1ec5n, b\u1ea1n c\u00f3 th\u1ec3 c\u1ea7n li\u00ean h\u1ec7 v\u1edbi nh\u00e2n vi\u00ean s\u1eeda ch\u1eefa chuy\u00ean nghi\u1ec7p \u0111\u1ec3 ki\u1ec3m tra v\u00e0 s\u1eeda ch\u1eefa.<\/span><\/p>\n


<\/span><\/p>\n

C\u00e2u h\u1ecfi 5: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ng\u0103n ng\u1eeba c\u1ea3m bi\u1ebfn h\u00ecnh \u1ea3nh c\u1ee7a camera OV48C40 b\u1ecb tr\u1ee5c tr\u1eb7c?<\/span><\/strong><\/p>\n

A5: C\u00e1c gi\u1ea3i ph\u00e1p \u0111\u1ec3 ng\u0103n ng\u1eeba c\u1ea3m bi\u1ebfn h\u00ecnh \u1ea3nh c\u1ee7a camera OV48C40 b\u1ecb tr\u1ee5c tr\u1eb7c bao g\u1ed3m:<\/span><\/p>\n

S\u1eed d\u1ee5ng \u0111\u00fang c\u00e1ch: Tr\u00e1nh \u0111\u1ec3 m\u00e1y \u1ea3nh ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 \u1ea9m qu\u00e1 cao ho\u1eb7c nhi\u1ec5u \u0111i\u1ec7n t\u1eeb.<\/span><\/p>\n

B\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean: V\u1ec7 sinh b\u1ec1 m\u1eb7t \u1ed1ng k\u00ednh v\u00e0 c\u1ea3m bi\u1ebfn, gi\u1eef cho m\u00e1y \u1ea3nh s\u1ea1ch s\u1ebd b\u00ean trong.<\/span><\/p>\n

B\u1ea3o qu\u1ea3n \u0111\u00fang c\u00e1ch: Khi kh\u00f4ng s\u1eed d\u1ee5ng m\u00e1y \u1ea3nh, h\u00e3y c\u1ea5t m\u00e1y \u1ea3nh \u1edf n\u01a1i kh\u00f4 r\u00e1o, tho\u00e1ng m\u00e1t \u0111\u1ec3 tr\u00e1nh \u1ea9m \u01b0\u1edbt ho\u1eb7c \u00e1p l\u1ef1c.<\/span><\/p>\n

Ch\u00fa \u00fd \u0111\u1ebfn \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a \u0111i\u1ec7n \u00e1p: \u0110\u1ea3m b\u1ea3o ngu\u1ed3n \u0111i\u1ec7n m\u00e0 camera s\u1eed d\u1ee5ng c\u00f3 \u0111i\u1ec7n \u00e1p \u1ed5n \u0111\u1ecbnh \u0111\u1ec3 tr\u00e1nh t\u00ecnh tr\u1ea1ng \u0111i\u1ec7n \u00e1p dao \u0111\u1ed9ng c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng c\u1ea3m bi\u1ebfn.<\/span><\/p>\n

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

The OV48C40 color image sensor is a high-performance CMOS image sensor with a 4-element color filter and stacked chip technology, providing 48 mega-dots (8064×6048) at 15fps. It offers multiple resolution options  while maintaining a full field of view. Users can program image resolution, frame rate, and image quality parameters. The industry-standard serial camera control bus (SCCB) is used to control camera functions. The OV48C40 is capable of 80fps 12 mega-dot resolution (40fps with HDR output), allowing continuous shooting at 12 megapixel resolution. OV48C The 40 has a complete 48-mega-dot image array, including all image management functions to ensure a high-quality imaging solution for high-resolution mobile smartphones. All required image processing functions can be programmed through the SCCB interface. In addition, OmniVision image sensors utilize proprietary sensor technology to improve image quality by reducing or eliminating common lighting\/power image pollution (such as fixed pattern noise, tailing, etc.), resulting in clean, fully stable color images. Features\uff1a \u25cf Automatic Black Level Calibration (ABLC) \u25cf Programmable control of frame rate, mirroring and flipping, merging, cropping and windowing \u25cf Support for dynamic DPC \u25cf Supported output formats: 10-bit RGB 4C non HDR, 10-bit RGB Bayer non HDR and up to 14-bit Bayer HDR \u25cfSupports horizontal and vertical subsampling \u25cfSupports typical image sizes: 8064×6048, 4032×3023, 3840×2160, 1920×1080, 1280×720 \u25cfStandard serial SCCB interface \u25cfUp to 4-lane MIPI TX interface, up to 2.6 Gbps\/lane \u25cf2\/3 trio CPHY interface, up to 2.1 Gsps\/trio \u25cfSupports Type 2 4C HS PDAF \u25cf4-cell support: 4-cell binning 4-cell full \u25cfHDR support: DCG output with on-chip combination Staggered HDR 2 exposure via on-chip combination Staggered HDR 2\/3 exposure time \u25cfOn-chip 4-core to Bayer converter \u25cfThree on-chip phase-locked loops (PLLs) \u25cfProgrammable I\/O drive capability \u25cfBuilt-in temperature sensor \u25cf1.197\u00b5m DCG points Specifications: \u25cfActive array size: 8064×6048 \u25cfPower supply: -Analog: 1.1V -Analog: 2.8V -I\/O: 1.8V \u25cfPower requirements: -Active: 560mW (48MP@15fps) -Standby: <10\u00b5A \u25cfTemperature range: -Operating: -30\u00b0C to 85\u00b0C junction temperature -Stable image: 0\u00b0C to 60\u00b0C junction Temperature \u25cfOutput format: HDRRGBRAW10\/12\/14-bit \u25cfInput clock frequency: 6~27MHz \u25cfLens size: 1\/1.32" \u25cfLens main ray angle: 36.1\u00b0 non-linear (see Table 9-3) \u25cfMaximum image transmission rate: 8064×6048: 15fps \u25cfMaximum exposure: VTS-31 lines \u25cfMinimum exposure: 8 lines \u25cfSensitivity: 4,700 e-\/Lux-sec \u25cfMaximum signal-to-noise ratio: 55dB \u25cfDynamic range: To be determined @16x gain \u25cfScanning channel: progressive scan \u25cfPixel size: 1.197\u00b5mx1.197\u00b5m \u25cfImage area: 9690.912\u00b5mx7277.76\u00b5m \u25cfChip size: 10983.6 \u00b5mx8436.6\u00b5m (COB), 11033.6\u00b5mx8486.6\u00b5m (RW) Frequently asked questions about OV48C40 camera image sensor: Q1: What type of sensor is the OV48C40 camera image sensor? A1: The OV48C40 is a CMOS (complementary metal oxide semiconductor) image sensor. CMOS sensors are widely used in digital cameras, smartphones and other fields with their low power consumption, high integration and good image quality. Q2: What are the main features of the OV48C40? A2: The main features of OV48C40 include: High resolution: supports high-pixel shooting and provides excellent image details. Large photosensitive element: With a larger photosensitive element area, it can capture more light and improve the shooting effect in dark environments. Multi-mode output: supports multiple pixel mode outputs to meet the shooting needs in different scenes. Advanced HDR technology: supports chip-level HDR function, which can present more details in high-contrast scenes. High-speed video recording: supports high frame rate video recording, suitable for capturing dynamic scenes. Q3: What are the common faults of OV48C40 camera image sensor? A3: The OV48C40 camera image sensor may encounter the following common faults during use: Increased image noise: After working for a long time, due to the increase in temperature, the intrinsic excitation of the semiconductor material intensifies, resulting in a decrease in the signal-to-noise ratio and an increase in image noise. Image color cast or stripes: Unstable analog voltage or problems with the data line (such as short circuit or open circuit) may cause image color cast or stripes. Blurred or out-of-focus images: This may be related to the lens focus components or camera settings rather than directly caused by the sensor, but sensor problems may also indirectly affect the focus effect. Thermal noise: In high temperature environments, the sensor may generate thermal noise, which appears as irregular streaks or color spots on the image. Q4: How to solve the problem of increased noise in the OV48C40 camera image sensor? A4: Solutions to the problem of increased noise include: Optimize heat dissipation: Ensure that the camera has good heat dissipation conditions during operation to avoid overheating of the sensor. Adjust camera settings: Reduce ISO sensitivity and reduce exposure time to reduce noise. Software processing: Use image processing software to reduce noise in the image. Professional repair: If the problem persists, you may need to contact a professional repair personnel for inspection and repair. Q5: How to prevent the OV48C40 camera image sensor from malfunctioning? A5: Solutions to prevent the OV48C40 camera image sensor from malfunctioning include: Proper use: Avoid exposing the camera to extreme temperatures, humidity, or electromagnetic interference. Regular maintenance: Clean the lens and sensor surface, and keep the camera clean inside. Proper storage: When the camera is not in use, store it in a dry, ventilated place to avoid moisture or pressure. Pay attention to voltage stability: Make sure the power supply voltage used by the camera is stable to avoid voltage fluctuations that may damage the sensor.<\/p>","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","footnotes":""},"categories":[669],"tags":[670],"class_list":["post-13230","post","type-post","status-publish","format-standard","hentry","category-48mp-camera-sensor","tag-ov48c40"],"_links":{"self":[{"href":"https:\/\/dgzx.hk\/vi\/wp-json\/wp\/v2\/posts\/13230","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dgzx.hk\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dgzx.hk\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dgzx.hk\/vi\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/dgzx.hk\/vi\/wp-json\/wp\/v2\/comments?post=13230"}],"version-history":[{"count":0,"href":"https:\/\/dgzx.hk\/vi\/wp-json\/wp\/v2\/posts\/13230\/revisions"}],"wp:attachment":[{"href":"https:\/\/dgzx.hk\/vi\/wp-json\/wp\/v2\/media?parent=13230"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgzx.hk\/vi\/wp-json\/wp\/v2\/categories?post=13230"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgzx.hk\/vi\/wp-json\/wp\/v2\/tags?post=13230"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}