這張測(cè)試圖卡是專門做高分辨率測(cè)量的。

3對(duì)頻率從1到28.5線對(duì)每厘米的線條（黑色和白色）分布在白色背景上。這個(gè)模式在圖表上順時(shí)針方向轉(zhuǎn)動(dòng)降低分辨率。

This chart is designed to do resolution measurements.

3 pairs of lines (black and white) with frequencies from 1 - 28.5 linepairs per centimeter are printed on a white background. The patterns are ordered clockwise in decreasing resolution on the chart.