Anzanu omwe akuchita nawo cctv akudandaula kuti makasitomala amasiku ano akuwonongeka ndi zotsatsa, kunena ngati zowonera ndi zowonera ndi 4K, muli ndi malingaliro a 1080P pazithunzi zowunikira?
Anzanu achita tsinya ndikuuzana kuti: Inde, koma zodula, mukufuna?
Zoonadi, kuchokera kuzinthu zothandiza, palibe chifukwa cha 4K mu chitetezo, ndipo tiyenerabe kuyesa kukhala olemera kwambiri komanso ogwira mtima.
M'malo mwake, zilibe kanthu kuti ndani adafunsa kapena kuyankha, mumamufunsa kuti anene kuti kudziwa 4K kumatanthauza chiyani? Kodi mungasiyanitse bwanji ma pixel ndi kusamvana? Kodi 1080P imayimira chiyani? Mwina si ambiri amene angayankhe.
Pixel: Ndizodziwika bwino kuti pixel imodzi ndiye gawo lofunikira lomwe limapanga chithunzi. Ma pixel 2 miliyoni amatanthauza kuti pali mayunitsi 2 miliyoni pachithunzichi.
Kusamvana: Kufotokozera kotchuka ndi m'lifupi × kutalika kwa chinsalu, ndithudi, gawolo ndi pixels.
Chifukwa chake sikovuta kuwona kuti pixel ndiye mtengo wazogulitsa. 1920×1080=2073600 = mapikiselo 2 miliyoni; 1600×1200=1920000=mapikiselo 2 miliyoni. Chitsanzo ichi chiyenera kumveka ngati mukuchiwona bwino.
Kodi mungasiyanitse bwanji 720P ndi 1080P?
Awiriwa ndi a chigamulocho. P kuseri kwa 720P ndi 1080P kumatanthauza kusanja kopita patsogolo (Chingerezi: Progressive). The K pambuyo 4K zikutanthauza chikwi, kutanthauza kusamvana yopingasa ndi za 4000 mapikiselo.
Kusamvana sikuli m'lifupi × kutalika, tanthauzo la mzere ndi mzere liyenera kukhala lalitali. kotero:
720P = 1280×720 nthawi zambiri amatchedwa HD kapena tanthauzo lalikulu
1080P=1920×1080 Nthawi zambiri amatchedwa FHD kapena Full HD
4K = 3840 × 2160 yomwe imadziwika kuti QFHD kapena Ultra HD
Kodi pali kusiyana kotani pakati pa khalidwe lachiwonetsero kapena khalidwe?
Kuti timvetse mosavuta, tiyeni titenge chitsanzo kuchokera pazithunzi zomwe zingapezeke tsiku ndi tsiku. Aliyense wawona DVD resolution, yomwe nthawi zambiri imakhala yofanana ndi satellite TV, ndipo kuwongolera kwa chingwe TV ndi gawo limodzi mwamagawo atatu a chigamulo cha satellite TV.
Ndipo 720P ndi kuwirikiza kanayi tanthauzo la DVD, 1080P ndi kanayi kuposa 720P, ndipo 4K ndi kanayi kuposa 1080P.
Chifukwa chake, chithunzi chowoneka bwino cha 4K sichingafanane ndi kuchuluka kwa zokometsera, zofewa kotero kuti ngakhale tsitsi limatha kuwoneka bwino!
Nthawi yotumiza: Oct-19-2022