LED11ET8 G3 940
HDTV Universal Test Chart
HDTV Universal Test Chart is disigned and used
for the quick (mainly visual) appraisal of HDTV camera´s
transmission characteristics. It consists of a gray background on which
circles, gray scales, horizontal and vertical lines are positioned.
In the center of the test chart on a gray background (D=0.75;
reflectance = 18%) a white circle with gray scales and resolution
wedges is located. On both sides of this central circle four circles
with resolution wedges are arranged.
The 16:9 format is marked by four arrows located on the horizontal and
vertical central lines. In addition, four arrows located close to the
circles on the upper and the bottom edge of the picture mark the 4:3
format. Thus the test chart can also be used for testing 4:3 cameras.
The white central circles shows four gray scales each of 11 steps. They
increase in equal linear steps from D=0.15 to D=1.65 and are used for
checking halftone rendition of HDTV cameras. Due to the white
surrounding area the results may, however, be qualified.
All frequency values in the test chart are indicated in cph (cycles per
height). In the central circle three resolution wedges with different
frequencies are arranged vertically and horizontally. They reach from
100 to 250, from 200 to 500 and from 400 to 1000 cph. In addition, two
resolution wedges angled in 45° generate frequencies of 200 to
In the middle of the test chart and on the left and right sides there
are four squares with line rasters that are inclined at angles of 0,
45, 90 and 135°. They generate a frequency of 200 cph. Those
line rasters which are inclined at angles of 45° and
135° generate a different frequency (141.4 cph) in horizontal
and vertical direction (due to their inclination). The eight outer
circles are arranged in such a way that they can be used both for 16:9
and 4:3 format. The larger ones show cross-shaped resolution wedges.
The circular rings, which can also be used for checking geometry, are
designed for marking the resolution in vertical and horizontal
direction. Resolution is shown at 200, 500, 660, 725 and 800 cph.
The outer circles in the four corners have longer resolution wedges.
They cross at 500 cph and have markings from 200 to 800 cph.
In the center of the test chart both in the gray and white area bar
elements are arranged with a length of 1 (=half the picture-height), 2,
4, 8, 16, 32 and 64 cph. Left to right vertical gray scale there are
five additional short bars with 100, 300, 500, 700 and 900 cph.
Color Rendition Chart (X-Rite ColorChecker)
Scan Reference Chart
Flesh Tones Test Chart
Bar Test Chart(IEC 61146)
White Balacing Test Chart
ISO 12233:2014 Edge SFR(eSFR)Test chart
Color Spilled Coins (Dead Leaves) Test Chart
Gray Scale Test Chart(11 steps)
Streaking Measurement Test Chart
Color Bar Test Chart
Gray scale chart
Grid Test Chart
ISO 12233 Enhanced digital camera resolution chart
Standard SFRplus Chart
SFRplus Chart on Photographic Paper QI-SFR10-P-RM
ITE Grayscale Chart II(Gamma = 1)
Black & White Spilled Coins (Dead Leaves) Test Chart
OECF Test Chart (ISO 14524)
ISO 12233: 2014 (eSFR)Photographic chart
ISO-14524 digital camera contrast chart
ISO-15739 digital camera noise test chart
ISO 12233 Digital still-camera resolution chart
Automotive Test Chart
SFRplus Chart: Inkjet on Paper - 4:1 Contrast Ratio
SFRplus Chart: Inkjet on Paper - 10:1 & 2:1 Contrast Ratio
Distortion Grid Test Chart
HDTV Gray Scale Test Chart
ITE Grayscale Chart I(Gamma = 0.45)
EIA RESOLUTION CHART 1956
Sector Star Test Chart (72 cycles)
Sector Star Test Chart (36 cycles)
HDTV Universal Test Chart
DTV Color Rendition Test Chart
36-Patch Dynamic Range Test Chart