Uyini umehluko phakathi kokuskena okuxhumene nokuqhubekayo kwamakhamera enkomfa yevidiyo

I-interlaced and Progressive zombili izindlela zokuveza izithombe ezihambayo kudivayisi yesibonisi.IkuhlanganisweIndlela iwukuthi ifreyimu ngayinye ihlukaniswe izinkambu ezimbili futhi iboniswe ngokushintshana.Indlela eqhubekayo ukubonisa zonke izithombe kuhlaka ngalunye.Ukuboniswa ngesikhathi esisodwa.Indlela evamile yokuskena yezibonisi ze-LCD TV isuka kwesokunxele uye kwesokudla naphezulu iye phansi, iskena inombolo emisiwe yozimele ngomzuzwana.

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Ukuskena okuxhumene kusho ukuthi uhlaka ngalunye luhlukaniswe izinkambu ezimbili.Inkambu ngayinye iqukethe yonke imigqa eyinqaba noma yokuskena kuhlaka.Ngokuvamile, imigqa eyinqaba iskenwa kuqala ukuze kutholwe inkambu yokuqala, bese kuthi imigqa elinganayo iskenwe ukuze kutholwe inkambu yesibili.Ngenxa yokuphikelela komphumela wokubona, iso lomuntu lizobona ukunyakaza okushelelayo esikhundleni sokucwayiza kwezithombe ezinohlaka oluyingxenye.Kodwa ngalesi sikhathi, kuzoba khona ukucwayiza okungabonakali, okwenza amehlo akhathele.Uma okuqukethwe kwesikrini kuyimigqa evundlile, lokhu kucwayiza kulula ukukubona.
Ukuskena okuqhubekayo kubonisa lonke uhlaka lokuskena ngaso sonke isikhathi.Uma izinga lozimele lokuskena okuqhubekayo lilingana nezinga lenkambu yekuhlanganisweukuskena, iso lomuntu lizobona isithombe esishelelayo kunokuskena okubhanqanisiwe, futhi okucwayizayo kuncane kunokuskena okubhanqane.Indlela yokuskena eqhubekayo yenza i-spectrum yefrikhwensi yesiginali kanye nomkhawulokudonsa wesiteshi wokudlulisa isignali ufinyelele izidingo eziphezulu.Umgomo wokusebenza ukwahlukanisa isithombe esinemigqa engu-625 sibe izinkambu ezimbili ukuze siskenwe.Inkambu yokuqala ibizwa nge-odd field, futhi yimigqa eyinqaba yemigqa engama-625 kuphela eskenwayo (ukuskena 1, 3, 5, ... imigqa ngokushintshana), kanye nenkambu yesibili (inkundla imbala ) Skena kuphela imigqa enenombolo elinganayo ka-625 kuphela. imigqa (iskena 2, 4, 6, … imigqa ngokulandelana), bese uqedela inombolo yemigqa eskeniwe wuhlaka lwangempela lwesithombe ngokuskena kwezinkundla ezimbili, okuskena okuhambisanayo.Ngokuskena okuhlanganisiwe okunemigqa engu-625 ifreyimu ngayinye, ifreyimu ngayinye iskenwa ezinkambini ezimbili, inkambu ngayinye iskena imigqa engu-312.5 kuphela, futhi amafreyimu wezithombe angu-25 kuphela ngomzuzwana ayaskeniwa, ngakho-ke ingqikithi yezinkambu ezingu-50 ngomzuzwana ziyaskenwa ( Inkambu eyinqaba. futhi inkambu elinganayo ngayinye inezinkambu ezingama-25), okungukuthi, imvamisa yefreyimu ingu-25 Hz futhi imvamisa yenkundla ingu-50 Hz ngesikhathi sokuskena okuhambisanayo.


Isikhathi sokuthumela: Oct-12-2020