TE279分辨率测试图卡是为快速评估（主要是视觉评估）4K超高清电视相机的传输特性而设计的。
4K(UHD TV)分辨率测试图卡简介
TE279测试卡是以灰色为背景（D=0.75;透射率=18%），在中间有个白色的大圆圈，里面分布了灰阶条和分辨率楔形线条。在中间圆圈的两边，排列了四个带有分辨率楔形线条的小圆圈。
16:9的格式是由位于水平和竖直中间线上的四个箭头所标示的。另外，在图片的上部和底部边缘处，四个箭头靠近圆圈的位置标示了4:3的格式。
在白色圆圈的四个方向上各有一个11阶灰阶条。这些灰阶条从D=0.15到D=1.65以同等的线性距离增长，用于测试相机半色调再现性。然而由于周围的白色区域，测试结果会更有质量。
分辨率测试卡上的所有频率值都用cph（每单位像高的线数）表示。在中央大圆圈里，水平及竖直地排列了三条不同频率的分辨率楔形线条。它们的频率分别是从200到500,400到1000,800到2000cph。另外，在45度角交叉的两条分辨率楔形线条产生频率为400到1000cph。
在分辨率测试卡的正中心及左右两侧，有四个线光栅方格，倾斜的角度分别 为0°，45°，90°，135°。它们产生了一个400cph的频率。那些倾斜角度为45°及135°的线光栅方格在水平及竖直方向上（由于他们的倾向）生成了不同的频率。
中央大圆外面的八个小圆分别安排用于16:9 和4:3格式。其中较大的圆有十字形分辨率楔形线条。这些圆环用来标示水平和竖直方向上的分辨率，同时也可以用于检测几何失真。分别可显示400，600，800，1200及1600cph的分辨率。位于角落的四个圆有更长的分辨率楔形线条，它们的交叉点是640cph，并且标有从400到1600cph的刻度。
在分辨率测试卡的中间，白色和灰色区域内排列有七条杆元图，长度依次为1（=像高的一半），2,4,8,16,32及64cph。从左到右的竖直灰阶条那有5个额外的短条，范围从100到900及从200到1800cph。
TE279 resolution test card is designed for rapid evaluation (mainly visual assessment) 4K ultra-high definition TV camera transmission characteristics.
4K (UHD TV) resolution test card
TE279 test card is gray background (D = 0.75; transmittance = 18%), in the middle there is a large white circle,
Resolution test cardwhich distributed gray scale and resolution wedge lines. On both sides of the middle circle, four small circles with resolution wedge lines are arranged.
The 16: 9 format is indicated by four arrows on the horizontal and vertical middle lines. Also, at the top and bottom edges of the picture, the four arrows near the circle indicate the 4: 3 format.
In the four directions of the white circle each has an 11-order grayscale. These gray bars grow from D = 0.15 to D = 1.65 at the same linear distance for testing camera halftone reproducibility. However, due to the surrounding white area, the test results will be more quality.
Resolution test card values on the test card are represented by cph (the number of lines per unit high). In the central circle, three different frequency resolution wedge lines are arranged horizontally and vertically. Their frequencies are from 200 to 500, 400 to 1000,800 to 2000 cph, respectively. In addition, the two resolution wedge lines at the 45 degree angle intersect the frequency of 400 to 1000 cph.
In the center of the resolution test card and the left and right sides, there are four line grating grid, tilt angle of 0 °, 45 °, 90 °, 135 °. They produced a frequency of 400cph.
Resolution test cardThe line gratings with tilt angles of 45 ° and 135 ° produce different frequencies in the horizontal and vertical directions (due to their inclination).
The eight small circles outside the central circle are arranged for 16: 9 and 4: 3 formats, respectively. Where the larger circle has a cross-shaped wedge-shaped line. These rings are used to indicate the resolution in the horizontal and vertical directions, and can also be used to detect geometric distortions. Respectively, can display 400,600,800,1200 and 1600cph resolution. The four circles in the corner have longer resolution wedge lines, their intersection is 640cph, and marked with a scale from 400 to 1600cph.
There are seven bar graphs in the middle of the resolution test card, with a length of 1 (= half of the height), 2,4,8,16,32 and 64cph. From left to right vertical gray bars there are 5 extra short strips ranging from 100 to 900 and from 200 to 1800cph.
Resolution test card TE279
我司在菲林领域的主要生产经营范围：PCB/FPC/LCD/TP光绘菲林，手机镜片菲林，导光板菲林，蚀刻菲林，印刷包装菲林输出，测量菲林，图卡菲林
