An tsara katin gwajin HDTV na TE117 don kimanta halayen watsa hoto na kyamarorin talabijin na HD da sauri.

HDTV Universal gwajin katin gabatarwa

A tsakiyar yankin bango na launin toka na katin gwaji (D = 0.75; watsawa = 18%), akwai wani farin zagaye wanda ke da launin toka da ƙuduri na ƙuduri.

Akwai ƙananan da'idodi huɗu tare da ƙuduri wedge diagram a gefen tsakiyar farin babban da'idodi.

The format na 16:9 ne alama da hudu rami kibiyoyi da aka sanya a kwance da madaidaiciya tsakiyar layi. Bugu da ƙari, kibiyoyi huɗu da ke kusa da zagaye huɗu a gefen sama da ƙasa na hoton suna nuna tsarin 4: 3. Saboda haka wannan katin gwaji kuma za a iya amfani da shi don gwada kyamarorin 4: 3.

HDTV Universal gwajin katin amfani da umarnin

Akwai layi na launin toka na digiri 11 a kowane shugabanci huɗu a cikin farin da'irar. Wadannan rukunin launin toka guda huɗu suna ƙaruwa a hankali daga D = 0.15 zuwa D = 1.65 a cikin daidaitaccen hanyar layi, wanda za a iya amfani da shi don bincika aikin sake duba rabin launi na kyamarori masu ƙwarewa. Saboda farin yankin da ke kewaye, sakamakon binciken zai zama abin dogaro.

Duk darajar mita a kan katin gwaji an nuna ta hanyar cph (yawan layi a kowane rukuni kamar babban adadin layi). A cikin babban zagaye na tsakiya, an tsara zane-zane guda uku na ƙuduri daban-daban a kwance da tsaye. Wadannan mita suna daga 100 zuwa 250,200 zuwa 500,400 zuwa 1,000cph. Bugu da ƙari, biyu ƙuduri wedges crossed a 45 digiri kusurwa a samar da mita daga 200 zuwa 5000cph.

A tsakiyar da hagu da dama bangarorin gwajin katin, akwai hudu layi grid murabba'i, karkata kusurwa ne 0 °, 45 °, 90 °, 135 °, bi da bi. Suna samar da mitar 200cph. Waɗanda ke da kusurwar karkata na 45 ° da 135 ° na line grid suna samar da mita daban-daban (141.4cph) a kwance da tsaye (saboda yanayin su). An sanya ƙananan zagaye takwas a waje da babban zagaye na tsakiya a cikin tsari na 16: 9 da 4: 3. Babban zagaye yana da gicciye ƙuduri wedge diagram. An tsara ƙananan zagaye a cikin zagaye don nuna ƙuduri a kwance da tsaye, kuma ana iya amfani da su don gano karkataccen lissafi. Matsayin ƙuduri na gwajin wannan katin shine 200, 500, 660, 725 da 800cph.

Hudu zagaye na waje da ke kusurwa huɗu suna da dogon ƙuduri mai ƙuduri, tare da ƙuduri na 500cph, kuma suna da alama daga 200 zuwa 800cph.

A tsakiyar fari da launin toka na katin gwajin, akwai metacharts bakwai da tsawon 1 (= rabin sama), 2,4,8,16,32 da 64cph. Akwai wasu gajeren sanduna biyar a hagu na madaidaicin sandunan launin toka na dama, 100, 300, 500, 700 da 900cph, bi da bi.