How do I use the USAF resolution target?

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Cookie 声明由Cookiebot最后更新于 4/14/25

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Cookie是网站为了使用我们的用户体验更加有效而使用的小文本文件。法律规定，倘若cookie对于本网站的运营来说是完全必要的，那么，我们便可以在您的设备上存储cookie。而所有其它类别的cookie则需要获得您的许可。本网站使用各种不同类别的cookie。有些cookie是由显示在我们网站上的第三方服务放置的。

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How do I use the USAF resolution target?

USAF resolution targets consist of bars organized in groups and elements. Each group consists of six elements (i.e. elements 1-6) and each element is composed of 3 horizontal and 3 vertical equally spaced bars. Each element within a group corresponds to an associated resolution, based on the bar width/space. The resolution of an imaging system is defined by the group and element just before the black and white bars start blending together.

Note: Although the test yields precise resolution values, this is a qualitative test which depends on the user's definition of acceptable blur. The vertical bars are used to calculate horizontal resolution and the horizontal bars are used to calculate vertical resolution. One line pair equals one black and one white bar.

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