Kana maratidziro anotungamirwa anoshandiswa mumakamuri ekudzora, ma studio eTV nedzimwe nzvimbo, moire dzimwe nguva inoitika.Ichi chinyorwa chichasuma zvikonzero uye mhinduro dze moire.
Zviratidziro zve LED zvishoma nezvishoma zvave midziyo yekuratidzira mumakamuri ekudzora uye maTV studio.Zvisinei, panguva yekushandiswa, zvichaonekwa kuti kana lens yekamera inotarirwa kune inotungamirirwa, dzimwe nguva pachava nemitsara yakaita semafungu emvura uye mavara asinganzwisisiki (sezvinoratidzwa mumufananidzo 1), iyo inowanzonzi Moire pattern.
Mufananidzo 1
Moire mapatani anouya sei?
Kana mapatani maviri ane spatial frequencies akabatana, imwe pateni nyowani inowanzogadzirwa, iyo inowanzonzi moire (sezvinoratidzwa muFigure 2).
Mufananidzo 2
Iyo yechinyakare LED ratidziro inoumbwa yakazvimirira mwenje-emitting pixels, uye pane zviri pachena zvisiri-mwenje-emitting nzvimbo pakati pemapikisi.Panguva imwecheteyo, iyo photosensitive zvinhu zvedhijitari makamera zvakare ane pachena asina kusimba photosensitive nzvimbo kana iwo anonzwa.Moire akazvarwa apo kuratidzwa kwedhijitari uye kutorwa kwemafoto kwedhijitari kwavepo.
Nzira yekubvisa kana kuderedza Moire?
Sezvo kupindirana pakati peiyo grid chimiro cheiyo LED skrini yekuratidzira uye gidhi yekamera CCD inoumba Moire, kushandura kukosha kwehukama uye gidhi chimiro chegridhi chimiro cheCCD kamera uye gidhi reiyo LED kuratidza skrini inogona dzidziso. kubvisa kana kuderedza Moire.
Maitiro ekuchinja grid chimiro cheCCD kamera uyeChiratidziro che LED?
Mukuita kwekurekodha mifananidzo pafirimu, hapana mapikseli anogarogoverwa, saka hapana yakagadziriswa nzvimbo frequency uye hapana moire.
Naizvozvo, iyo moire phenomenon idambudziko rinounzwa ne digitalization yeTV kamera.Kuti ubvise moire, kugadzirisa kweiyo LED kuratidza mufananidzo wakatorwa mulenzi kunofanirwa kunge kuri kudiki pane spatial frequency yephotosensitive element.Kana mamiriro aya agutsikana, hazvibviri kuti mitsetse yakafanana neiyo photosensitive element ioneke mumufananidzo, uye hapazove ne moire.
Kuti uderedze moire, mamwe makamera edhijitari akashongedzerwa nepasi-pasi sefa yekusefa kunze kwepamusoro spatial frequency zvikamu mumufananidzo, asi izvi zvinoderedza kupinza kwemufananidzo.Mamwe makamera edhijitari anoshandisa masensa ane nzvimbo yakakwirira yefrequency.
Maitiro ekuchinja sei kukosha kweiyo grid chimiro cheCCD kamera uye iyo LED inoratidza skrini?
1. Shandura kona yekamera.Moire inogona kubviswa kana kuderedzwa nekutenderera kamera uye zvishoma kuchinja kona yekamera.
2. Shandura nzvimbo yekupfura kamera.Moire inogona kubviswa kana kuderedzwa nekufambisa kamera kudivi kana kumusoro uye pasi.
3. Shandura kuisa pfungwa pane kamera.Kunyanya kupinza kutarisisa uye yakakwira dhata pane yakadzama mapatani inogona kukonzera moire, uye kushandura yekutarisisa zvishoma kunogona kushandura kupinza uye kubatsira kubvisa moire.
4. Shandura kureba kwekutarisa kwe lens.Yakasiyana lens kana yakatarisa kureba marongero anogona kushandiswa kubvisa kana kuderedza moire.
Nguva yekutumira: Nov-15-2022