HDTV Dynamic ƙuduri gwajin katin bayani

HDTV Dynamic ƙuduri gwaji katin YE0125 musamman dace da gani ƙuduri na high-definition kyamara. Yana nuna wani yanki kwamfutar da asymmetrical tsari, da kewayon daga 0 zuwa 600c / ph da kuma biyu yanki kwamfutar sassa, wanda tsakiya ne a hagu kusurwa. Diamond spacing ne launin toka.

Katin gwajin gwajin ƙuduri na HDTV yana nuna allon yanki daya da aka tsara asymmetrically daga 0 zuwa 600cph (zagaye a kowane tsayi) da sassan allon yanki biyu wanda tsakiyar ke kusurwar hagu. Diamond rabo ne launin toka (D = 0.75). Black frame yana da alamar matakai na 100 cph. Don nuna cikakken zane-zane na yankin kwamitin yanki wanda ke kiyaye daidaito, gwajin zane-zane ya fi fadi a hagu fiye da rabo na 16: 9. 16: 9 Format alama da farin kibiya, kimanin 5.5mm a cikin gefen.

HDTV Dynamic ƙuduri gwajin katin graphics musamman dace da gani ƙayyade na high definition kyamarori. Dole ne a yi la'akari da cewa masu saka idanu suna da tasiri mai mahimmanci a kan watsawa na modulation. Kwatanta kyamarori da yawa ko daban-daban a kan nuni guda yana da sauƙi. Za a iya auna jimlar aikin watsawa na kyamarori, hanyoyin watsawa da na'urorin kulawa ta hanyar daidaitawa.

Lokacin da gwajin bawul kamara, za a iya kimanta daban-daban omnidirectionality na watsa aiki, wato, daban-daban ƙuduri dangane da shugabanci na layi grid: ba kawai kwance ƙuduri daban-daban ne daga madaidaiciya ƙuduri, amma a kan biyu diagonal shugabanci, ƙuduri yawanci daban-daban. Kwarewar kwance-kwance sau da yawa tana iyakance ta hanyar ƙananan halayen haɗin watsawa (musamman saboda ƙarancin amo). Saboda halaye na electron beam dubawa, diagonal ƙuduri karkatacce. Wannan ba ya aiki a kan CCD kamara.

Ana iya amfani da siginar bidiyo ta hanyar fitarwar kyamara don auna ayyukan watsawa na modulation. An ƙayyade girman siginar bidiyo ta hanyar oscilloscope, kamar yadda zai yiwu ta hanyar hasken gwajin zane. Sa'an nan kuma oscilloscope dole ne daidai kunna zuwa layin hoto, a tsaye sassa a cikin layi aiki na lokaci. Don ƙididdigar waɗannan ma'auni mafi kyau, dole ne a kashe karkatar da gamma na kyamara, watau an auna shi a cikin ayyukan layi.

Ma'auni a cikin siginar bidiyo ba kawai da alaƙa da aikin watsawa na mai saka idanu ba, har ma yana ba da damar samun cikakken bayani game da halayen watsawa na kyamara idan aka kwatanta da ƙayyadaddun ƙuduri. Wannan yana ba da damar, misali, ƙayyade 3dB maki na aikin wucewa. Don ingantattun hanyoyin ka'ida, dole ne a yi la'akari da bambanci tsakanin aikin watsawa na modulation (MTF) da aikin watsawa na bambanci (CTF).