Autofocus pasina mubvunzo chinhu chinobatsira kwazvo kamera mune ese magirazi uye nharembozha. Inovimbisa kuti mifananidzo yedu yakapinza kunyangwe pasi pemamiriro ekunze akanaka uye nekudaro inopa yakanaka kwazvo kubuda. Pamwe chete nekufambira mberi kwebudiriro, Dual Pixel autofocus iri kuwana mukurumbira muma smartphones. Iyi tekinoroji inovimbisa kukurumidza kutarisa, semuenzaniso kana uchitora mapfuti kana munzvimbo dzakadzika-mwenje. Asi inoshanda sei?
Dual Pixel autofocus ndeyekuwedzeredzwa kwechikamu-yekutarisa kutarisa, aka PDAF, iyo yave ichiratidzwa mumakamera e-smartphone kwemakore. PDAF inonyanya kushandisa mapikseli akazvitsaurira pane iyo sensor yemufananidzo inotaridzika kuruboshwe uye kurudyi kuverenga kana mufananidzo uri mukutarisa. Nhasi, vashandisi vazhinji vanovimba nemidziyo yemifananidzo yemafoni avo zvekuti ivo havana kana kamera yekare. Nzara yemifananidzo mikuru inotyaira vagadziri kuti vagadzire, saka kunyangwe tekinoroji yePDAF autofocus haina kumira uye inoramba ichivandudza. Mamwe mafoni emazuva ano ari kutanga kushandisa, pakati pezvimwe zvinhu, akawanda-directional PDAF, Yese Pixel inotarisisa kana laser autofocus.
Unogona kufarira
Sezvatoratidzwa, iyo yakatangira yeDual Pixel autofocus ndeye PDAF. Iyo yekupedzisira yakavakirwa pamifananidzo yakati siyanei yakagadzirwa neakavharirwa kuruboshwe- uye kurudyi-anotaridzika mafotodiode akavakirwa mumapikisheni emufananidzo sensor. Nekuenzanisa mutsauko wechikamu pakati pemapikseli aya, chinhambwe chekutarisa chinodiwa chinobva chaverengerwa. Phase-yekuonekwa mapixels anowanzo verengera inosvika 5-10% yeese sensor pixels, uye kushandisa yakatsaurirwa chikamu-yekuona pixel pairs kunogona kuwedzera kuvimbika uye kurongeka kwePDAF.
Kubatanidzwa kwese sensor pixels
NeDual Pixel autofocus, ese emapikseli e sensor anobatanidzwa mukutarisa, uko pixel yega yega yakakamurwa kuita maviri mafotodiode, imwe yakatarisa kuruboshwe uye imwe kurudyi. Izvi zvinobva zvabatsira mukuverenga kwechikamu mutsauko uye inokonzeresa kutarisa, zvichikonzera kuwedzera kwechokwadi uye nekumhanya zvichienzaniswa neyakajairwa PDAF. Paunenge uchitora pikicha uchishandisa Dual Pixel autofocus, processor inotanga yaongorora data yekutarisa kubva kune yega yega photodiode isati yabatanidza uye kurekodha masiginecha mumufananidzo unobuda.
Samsung's image sensor diagram pamusoro inoratidza mutsauko uripo pakati pechinyakare PDAF uye Dual Pixel autofocus tekinoroji. Iyo chete yaidzika pasi ndeyekuti kushandisa aya madiki-chikamu-yekuona mafotodiode uye mamicrolenses, ayo anobatanidzwawo mukutarisa maitiro, hazvisi nyore kana zvakachipa, zvinova zvakakosha kune yakanyanya-resolution sensors.
Muenzaniso unogona kunge uri 108Mpx sensor mukati meiyo modhi Galaxy Iyo S22 Ultra, isingashandisi Dual Pixel tekinoroji, nepo yakaderera-resolution 50Mpx makamera mumhando. Galaxy S22 kuti Galaxy Iyo S22 Plus inoita. Iyo Ultra's autofocus yakawedzera kushata semhedzisiro, asi foni yechipiri kamera yatove neDual Pixel autofocus.
Photogallery
Kunyangwe matekinoroji maviri aya achigovana hwaro hwakafanana, Dual Pixel inodarika PDAF maererano nekumhanya uye kugona kukuru kuchengetedza kutarisa pazvidzidzo zvinomhanya. Iwe unokoshesa izvi zvakanyanya kana uchitora zviitwa zvakakwana zvekuita, zvisinei nekuti iwe unongoda kukurumidza kuburitsa kamera uye uzive kuti mufananidzo wako uchagara wakapinza. Semuenzaniso, iyo Huawei P40 inozvirumbidza millisecond yakatarisa nguva nekuda kweiyi tekinoroji.
Unogona kufarira
Zvakakoshawo kuziva kuti Samsung inotora iyo Dual Pixel zvishoma kumberi neDual Pixel Pro, uko mafotodiode ega akapatsanurwa diagonally, izvo zvinounza kukurumidza kukurumidza uye nekurongeka, ndatenda, pakati pezvimwe zvinhu, kune chokwadi chekuti kwete kurudyi nekuruboshwe chete. orientation inopinda mukutarisa maitiro pano, asiwo yepamusoro uye yepasi yekumisikidza chimiro.
Imwe yezvakanyanya kukosha kukanganisa kwePDAF kuita kwakaderera-chiedza. Phase yekuona mafotodiode hafu yepixel, izvo zvinoita kuti ruzha runetse kuwana chaiyo informace o chikamu muchiedza chakaderera. Mukupesana, Dual Pixel tekinoroji inogadzirisa zvakanyanya dambudziko iri nekutora yakawanda data kubva kune yese sensor. Izvi zvinopfavisa ruzha uye zvinogonesa kukurumidza autofocus kunyangwe munzvimbo ine rima. Pane miganhu pano zvakare, asi iyi ingangove yakanyanya kunatsiridza kune autofocus system parizvino.
Kana iwe uri serious nezve mobile photography, kamera ine Dual Pixel autofocus tekinoroji ichakubatsira iwe kuona kuti mafoto ako anogara akapinza, uye zvakakodzera kuti utarise kuvepo kwayo kana kusavapo kana uchisarudza mudziyo wekhamera yefoni yako.
Worse huh? Ona kuti mafoto kubva kuPlus ndeapi uye mafoto kubva ku Ultra ndeapi. Ndinofara kuti ndabvisa plus. Photos blurred disgust. Ultra zvese zvakakwana. Une chinyorwa nezvake zvakare….
Kana kuti hauna ziso rakakwana rekuona mutsauko here? Ichava maonero ;-)