ESSER畸變測(cè)試卡/幾何失真卡Distortion Chart

用于手機(jī)、數(shù)碼相機(jī)、電腦攝像頭、筆記本攝像頭，車載攝像頭的幾何失真、畸變指標(biāo)測(cè)試

The test chart is designed for operational adjustment and control of TV cameras. The circles permit rough
visual appraisal of scan linearity. The lines serve the purpose of adjusting registration. The wedges serve the
purpose of resolution appraisal.

 功能描述

A grid structure consisting of 17 horizontal and 23 vertical lines is arranged on a white background forming
18x24 squares. 2 vertical grid lines each divide the outer 2 vertical square rows in the middle. One horizontal
grid line each divide the outer horizontal square rows in the middle.

The width of the grid lines is 0.13% of the picture width. The large circular line has a diameter of 83 1/3% of
the picture height, the 5 small circular lines have a diameter of 25% of the picture height. 2 resolution
wedges are arranged in the large circle at angles of 0° and 90°, corresponding to signal frequencies of 2-
10MHz. (The marking ends at 8 MHz and 800 lines.)