Peheaʻo 720p a me 1080i Heʻano a heʻano
720p a me 1080i he mau hiʻohiʻona kiʻekiʻe nui o ka hoʻonaninani wikiō, akāʻo ia kahi i pau ai ka likeʻana. Aia kekahi mauʻokoʻa koʻikoʻi ma waena o nā meaʻelua e pā i ka TV āu e kūʻai ai a me kāuʻikeʻike leka uila.
- 720p he 1,280 pika i hōʻikeʻia ma kahi o ka'ōkuhi ākea a me 720 pixels i hōʻikeʻia i lalo i ka maka. Hiki i kēia mau laina laina 720 a iʻole nā pika pika i hoʻounaʻia i kekahi lemu a iʻole kekahi mea hōʻike'ē aʻe, aiʻole kēlā laina kēia i hoʻounaʻia ma kahi'ē aʻe (ʻo ia kahi i hele aiʻo "p" mai). Hoʻounaʻia ke kiʻi a pau (720 laina a pixel pixel) i kēlā me kēia 60 o ka lua (aʻelua paha o kēlā me kēia 30 o ka lua). ʻO ka helu o nā pika i hōʻikeʻia ma kaʻaoʻao 720p āpau a pau he 921,600 (ʻoi iki iho ma mua o 1 megapixel i nā huapili kiʻi pūnaewele).
- ʻO 1080i ka heluʻana o 1,920 pixels i ka pae ākea a me 1,080 pixels i hoʻonohonoho ponoʻia. Hoʻohālike kēia i nā laina laina 1,080 (laina pika), i hoʻounaʻia i kahi TV (alternately referred to as a signal interlaced). I nā hua'ōlelo'ē aʻe, ua hoʻounaʻia nā laina a pauʻole a pixel paha i ka TV ma mua, a ma muli o nā laina a me nā pika pixel paha.ʻO kēia hoʻi, 1080i, no ka mea i'ōwiliʻia, hoʻouna wale aku i 540 laina (aiʻole hapalua o nā kiko'ī) i kēlā me kēia 60 o ka lua, me nā mea a pau i hoʻounaʻia i kēlā me kēia 30 o ka lua. Ma ka mahele, 1080i ka huina o nā mea iʻoi aku i ka 720p, akā, no ka hoʻounaʻana o ka nui o nā kiko'ī i kēlā me kēia 1/30 o ka lua, ma mua o ka 1/60 o ka lua, e hōʻike nā mea hoʻoikaika wikiwiki i nā meaʻili liʻiliʻi - eʻikeʻia paha e like me nāʻaoʻao āpau a iʻole ka hopena iki o ka hopena.
- ʻO ka helu helu o nā pika i loko o ka hōʻailona 1080i piha, i ka manawa e hui pūʻia nā lainaʻelua i hoʻohuiʻia, aiʻole nā lālani, e helu 2,073,600. Eia naʻe, e hoʻomanaʻo i ka hoʻouna waleʻiaʻana o 1,036,800 pika i nā 60 a pau o ka lua.
ʻOiaiʻo ka helu o nā pixels no ka 720p a 1080i paha o ka nānāʻana i ka nānā mauʻana i nā mālama mau o ka nui o ka nānāʻana,ʻo ka nui o ka maka e hoʻoholo i ka helu o nā pika i kēlā me kēia'īnika .
720p, 1080i, a me kāu wikiō
ʻO ka leka uila HDTV mai kāu keka uila o ke kelepona, kelepona, a me ke kelepona he 1080i (pēnei i CBS, NBC, WB), aiʻole 720p (e like me Fox, ABC, ESPN).
Eia naʻe,ʻo ka 720p a me ka 1080i nā pahuhopu nuiʻelua no ka hoʻolahaʻana i nā hōʻailona HDTV,ʻaʻole ia manaʻo eʻike anaʻoe i kēlā mau'ōlelo hoʻoholo i kāuʻike HDTV.
He mea nui ia e hoʻomaopopo i ka 1080p (1920 x 1080 laina a iʻole nā pika pika iʻikeʻia e like me ke kiʻi wikiwiki)ʻaʻole hoʻohanaʻia i ka hoʻolaha TV, akā hoʻohanaʻia e kekahi mea kelepona / kelepona, nā'enepili holonaewele punahele, a, 1010p, he hapa ke kūlana bila Blu-Disc Disc .
Eia kekahi, pono e hoʻomaopopoʻia he nui ka nui o nā TV i kapaʻia e like me 720p mau polokalamu he pixel pixel koho o 1366x768, i 768pʻoihana. Eia naʻe, hoʻolaha pinepineʻia lākou he 720p TV. Mai hōʻalepo, e lawe kēia mau hōʻailona 720p a me 1080i. ʻO ka mea a ke TV e hana ai, he kaʻina ( pālākiō ) i kēlā me kēia kaʻina e hiki mai ana i kona kūlana hōʻike 1366x768 pixel.
ʻO kekahi mea nui e haʻi aku ai ma muli o ka pauʻana o ka LCD ,' OLED , Plasma , a me DLP TV (Plasma a me DLP TV, akā he nui ka poʻe) hiki ke hōʻikeʻike haʻahaʻa i nā kiʻi,ʻaʻole hiki iā lākou ke hōʻike i ka hōʻailona 1080i maoli.
No kēlā mau hihia, ināʻikeʻia kahi hōʻailona 1080i, e hoʻonui ka TV i ka 1080i kiʻi i 720p aiʻole 768p (inā he 720p a 768p ka TV), 1080p (inā he 1080p TV) , aiʻole 4K (ināʻo ia he 4K Ultra HD TV) .
ʻO ka hopena,ʻo ka maikaʻi o ke kiʻi āu eʻike nei ma ka pakuhi e pili ana i ka maikaʻi o ke kaʻina wikiō TV -ʻoi aku ka maikaʻi o nā TV ma mua o nā mea'ē aʻe. Inā he hana maikaʻi ka polokalamu kelepa o TV, e hōʻike ke kiʻi i nāʻaoʻao leʻo aʻaʻole eʻikeʻia nā mea iʻikeʻia no nā waihona punaewele 720p a me 1080i.
Eia naʻe,ʻo ka hōʻailona nui loa e hōʻike ana i ka hanaʻoleʻana o ka mea papahana i ka hana maikaʻi,ʻo ia ke nānā i nāʻaoʻao i kālaiʻia i nā mea i loko o ke kiʻi. Eʻike nuiʻia kēia i nā hōʻailona 1080i e komo mai ana e like me ke kahe uila ka mea e kau i ka hopena i 1080p a iʻole i 720p (aiʻole 768p), akā, pono e hana i kahi hana i kapaʻia "deinterlacing".
Ponoʻo Deinterlacing e hoʻokomo i ka pūnaewele o ka TV i nā laina a me nā laina a iʻole nā pika piila o ka mea i komo e komo i 1080i kiʻi i kahi kiʻi holomua e hōʻikeʻia i kēlā me kēia 60 o ka lua. Hana kekahi mau mea hana i kēia pono, aʻaʻole kekahi.
Ka Lā Lalo
Keʻano o kēia mau helu a me nā hana iāʻoe,ʻaʻole ia he mea like me 1080i LCD,'OLED, Plasma, a iʻole DLP TV. Inā hoʻolahaʻia kekahi TV pālahalaha e like me ka "1080i" TV,ʻo ia hoʻi keʻano inā hiki iā ia ke hoʻokomo i kahi hōʻailona 1080i - pono ia ke kaulike i ka 1080i kiʻi a 720p no ka hōʻikeʻana i ka nānā. Hoʻonui pālahalahaʻia nā TV 1080p ma kekahiʻaoʻao, he 1080p a iʻole nā HD TV piha a me nā hōʻailona 720p a 1080i paha e hoʻonuiʻia i 1080p no ka hōʻikeʻana.
No ka hoʻokomoʻana i ka hōʻailona 1080i ma ka 720p a 1080p paha TV ,ʻo ka hopena o kaʻikeʻana ma kaʻili ka hopena o nā kumu he nui a me ka hoʻonāʻana, e like me ka hoʻomaʻamaʻaʻana o kaʻike / ke kaʻina hana , nā mea waiwai , a me ka hōʻailona wikiō a me ka hanaʻana.
Eia hou, e like me ka hoʻokomoʻana o 4K Ultra HD TV, ua emi iho ka loaʻa o 1080p a me 720p TV ma ke kelepona. Me nā hanana wale nō, ua hoʻokumuʻia nā 720p TV e nānā i nāʻano 32-inisi a me ka liʻiliʻi -ʻo kaʻoiaʻiʻo,ʻaʻoleʻoe eʻike i ka nui o ka nui o nā TV 1080p i loko o kēlā a nui a emiʻole paha, akā me 4K Ultra HD TVs Ke emi nei ka nui o nā kālā,ʻo ka nui o nā 1080p TV i 40 mau'inima a me ka nui o nā kiʻi uila e lilo ana i mea nuiʻole.