高清晰度電視系統(tǒng)測試圖卡
簡介
這張測試卡用于電視系統(tǒng)需要的高精度定位測試以及HDTV需要的高分辨率測量。
這張圖由水平和垂直間距為h/45的直線和直徑為√2h, h, 5h/12, 以及 h/4的圓組成包含400TV到1600TV的條紋。
尺寸
| 有效面積 | 外形尺寸 | |
| 透射式 | 272×153 | 310×200 |
| 反射式 | 512×288 | 570×350 |
This Test Chart is used for registration of TV systems which needs high-accuracy registration and high resolution needed by HDTV.
Horizontal and vertical spacing in line is h/45 and the diameters of the circles are √2h, h, 5h/12, and h/4 in the chart which consists of 400TV to 1600TV of fringes.
Sizes of effective area and outer shape of refection test chart are indicated in below table.
| Effective Area | Outer Size | |
| Transparent Type | 272×153 | 310×200 |
| Opaque Type | 512×288 | 570×350 |
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