CN104967842A - High-definition display UHDTV composite test method - Google Patents
High-definition display UHDTV composite test method Download PDFInfo
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Abstract
The invention relates to a novel digital display technology and a display device measurement technology. In order to fill the gaps of the existing UHDTV composite test method, the invention provides a composite test pattern and a test method to carry out comprehensive, convenient and fast UHDTV evaluation. According to the technical scheme of the invention, the high-definition display UHDTV composite test method comprises the steps that the composite test pattern provided with reproduction ratio, horizontal resolution, vertical resolution, diagonal resolution, 21 gray scale, a color degree viewing angle test unit, a color gamut test unit, linear sweep wave, a multi-wave group and other test units and superimposed with a dynamic random motion unit to test UHDTV. The high-definition display UHDTV composite test method provided by the invention is mainly applied to display device measurement occasions.
Description
Technical field
The present invention relates to new digital Display Technique, display device measuring technique.Specifically, ultrahigh resolution display (UHDTV) composite test method is related to.
Background technology
High definition display (HD) obtains practical application in many countries.In the world, display field, digital TV field research and development focus have been transferred to ultrahigh resolution display (UHDTV).UHD display can provide more high-definition picture, as 4K (3840 × 2160) and 8K (7680x4320), larger visible angle, has larger color domain coverage ratio, can bring the sensory experience having more telepresenc, approaching to reality scene to user.Therefore most promising Display Technique of future generation after being considered to HD.
At present, main flow TV enterprise has released the product with ultra high-definition display effect all, as Hisense, TCL, Skyworth, Konka, Samsung, LG, Sony (SONY), Sharp (Sharp) etc.Can predict in the near future, UHD shows product will become the main flow of display, TV market, in the urgent need to carrying out normalized test and calibration to the performance index of UHDTV product.
Digital TV-set composite testing picture has been proved to be a kind of comprehensive, convenient, observation method directly perceived fast, is used widely in digital standard definition TV (SDTV), digital high-definition television (HDTV) test.Therefore, the present invention, according to the feature of UHDTV and performance index requirement, designs and generates UHDTV composite test pattern, and providing corresponding method of testing.
Summary of the invention
For overcoming the deficiency of technology, fill up the blank of existing UHDTV composite test method, the object of this invention is to provide a kind of can comprehensive to UHDTV, convenient, the composite test pattern evaluated fast and method of testing.For this reason, the technical scheme that the present invention takes is, ultrahigh resolution display UHDTV composite test method, comprise the steps: that utilization is provided with the multiple test cells such as reproduction ratio, horizontal definition, vertical definition, oblique definition, 21 GTGs, colourity angle of visibility test cell, colour gamut test cell, linear frequency sweep ripple, multiburst, and superpose the composite test pattern of dynamic random moving cell, test UHDTV.
Composite test pattern is provided with ash end white square background: background is 50% white level; Background check is of a size of 112 × 112 pixels; Background check live width, height are 2 pixels, and in view picture figure, there are 32 background checks in background level direction, and vertical direction has 18 background checks, are used for checking geometric distortion, nonlinear distortion and convergence, colour purity performance.
Reproduction ratio test cell: be equipped with white frame in upper and lower, the left and right of composite test pattern, upper and lower side frame height is 55 pixels, and left and right side frame width is 97 pixels; And 2 place 99%, 97%, 95%, 91% reproduction ratio marks are respectively provided respectively at upper and lower side frame place, 1 place 99%, 97%, 95%, 91% reproduction ratio mark is respectively provided at left and right side frame place.
Continuous resolving power test unit: this unit is 6 groups of wedge shape lines bunch in composite test pattern central authorities great circle, is used for testing any level, the vertical definition value within the scope of 700-2160 tv line, and any oblique definition values within the scope of 800-3055 tv line;
Wherein, continuous horizontal resolving power test unit is upper and lower 2 bunches of wedge shape lines in great circle.The definition of top wedge shape line bunch is from 700 to 1300 consecutive variations, and the definition of below wedge shape line bunch is from 1200 to 2160 consecutive variations; Continuous measurement horizontal definition within the scope of 700-2160 tv line;
Continuous vertical definition test cell is the 2 bunches of wedge shape lines in left and right in great circle, the definition of left side wedge shape line bunch is from 700 to 1300 consecutive variations, the definition of right side wedge shape line bunch from 1200 to 2160 consecutive variations, can within the scope of 700-2160 tv line continuous measurement vertical definition.
Continuous oblique is 45 ° and 135 ° of wedge shape lines bunch in great circle to resolving power test unit, the definition of 45 ° of wedge shape lines bunch is from 800 to 1270 consecutive variations, the definition of 135 ° of wedge shape lines bunch from 1270 to 3055 consecutive variations, the oblique definition of continuous measurement within the scope of 800-3055 tv line.
Definition representative value test cell.This unit is the outer upper left of central great circle, upper right, lower-left, bottom right totally 20 grids;
Wherein, in 5 grids of the outer upper left of central great circle, be respectively 2160 and 1440 line levels, vertical definition test cell, and the oblique resolving power test unit of 3055 lines.
1080 and 720 line levels, vertical definition test cell is respectively in 5 grids of the outer upper right of central authorities' great circle, and the oblique resolving power test unit of 2040 lines;
865 and 620 line levels, vertical definition test cell is respectively in 5 grids of the outer lower-left of central authorities' great circle, and the oblique resolving power test unit of 1530 lines;
2160 and 540 first levels, vertical definition test cell is respectively in 5 grids of the outer bottom right of central authorities' great circle, and the oblique resolving power test unit of 1220 lines.
Colourity angle of visibility and colour of skin test cell are the colored block of central great circle left and right sides symmetry, vertical distribution;
Wherein, colourity angle of visibility test cell is 8 colored blocks from top to bottom, and their red R, green G, blue B chromatic value comply with
Secondaryly be:
| Sequence number (from top to bottom) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| R | 115 | 194 | 56 | 70 | 175 | 231 | 187 | 8 | 122 |
| G | 82 | 150 | 61 | 148 | 54 | 199 | 86 | 133 | 122 |
| B | 68 | 130 | 150 | 73 | 60 | 31 | 149 | 161 | 121 |
Colour of skin test cell is below, each side 3 colour of skin blocks in this element, and their color space coordinate xyY value is followed successively by:
| Sequence number (from top to bottom) | 1 | 2 | 3 |
| x | 0.37 | 0.37 | 0.37 |
| y | 0.35 | 0.35 | 0.35 |
| Y | 19 | 22 | 25 |
21 Gray Cell are positioned at immediately below central great circle, for gray scale is from 0%-100%, 21 grey blocks changing at equal intervals by 5%, whether have distinguishable grey scale change according to neighboring gradation block, the gray scale resolving power of test display.
Multiburst unit is positioned at the composite test pattern upper left corner, by being superimposed upon 50% grey level, peak-to-peak amplitude be 40% 7 discrete wave groups form, the frequency of 7 wave groups is respectively 30MHz, 60MHz, 90MHz, 120MHz, 150MHz, 180MHz, 240MHz.
Linear frequency sweep ripple unit is by being superimposed upon 50% grey level, and peak-to-peak value amplitude 40%, the sine wave that frequency linearly improves from left to right forms.Frequency range is 100kHz-240MHz.
Colour gamut test cell is made up of 4 groups that are positioned at resolution chart corner colored blocks;
Wherein, upper left corner unit by respectively on three dimensional device has nothing to do saturated purple-saturated red, saturated red-saturated Huang in uniform colour space Luv space, saturated Huang-Bai, white-saturated purple, white-saturated red 5 gamut boundary lines the colored block of uniform sampling form;
Lower left corner unit by respectively on three dimensional device has nothing to do black-saturated green, saturated green-saturated Huang in uniform colour space Luv space, saturated Huang-saturated red, saturated red-Hei, black-saturated yellow 5 gamut boundary lines the colored block of uniform sampling form;
Upper right corner unit is by the saturated green-Bai in the uniform colour space Luv space that has nothing to do at three dimensional device respectively, and on white-saturated indigo plant, saturated indigo plant-saturated green grass or young crops, saturated green grass or young crops-saturated green, saturated green grass or young crops-Bai 5 gamut boundary lines, the colored block of uniform sampling forms;
Lower right corner unit by respectively on three dimensional device has nothing to do the saturated indigo plant-saturated green grass or young crops in uniform colour space Luv space, saturated green grass or young crops-Hei, black-saturated purple, saturated purple-saturated indigo plant, saturated indigo plant-Hei 5 gamut boundary lines the colored block of uniform sampling form;
This colour gamut test cell three dimensional device have nothing to do uniform colour space Luv space 18 gamut boundary lines on evenly get 6 points respectively;
Colored block is used for carrying out the subjective assessment of display device chromatic resolution and three-dimensional gamut objective examination, when carrying out the subjective assessment of display device chromatic resolution, observes the heterochromia degree between adjacent color lump; Evenly get on uniform colour space due to adjacent color lump and a little obtain, therefore between adjacent color lump, this display device colour gamut of the larger expression of heterochromia is wider, when carrying out three-dimensional gamut objective examination, scatter diagram is drawn at the three dimensional device uniform colour space that has nothing to do by this test data, structure three-dimensional gamut is three-dimensional, calculate gamut volume, compare colour gamut size.
Superposition dynamic random moving cell is the colored bead of movement position, speed, direction completely random, and its movement properties can not be predicted, therefore can measure the motion process ability of display device to be measured to greatest extent;
Moving cell designs the filled circles that 2 radiuses are 40 pixels, and only occurs outward in great circle;
The initial position of 2 motion beads, respectively outside left and right two parts, great circle of static composite test pattern, produces at random; Left and right
The initial position of two beads is independent, uncorrelated mutually mutually;
After bead setting in motion, the direction of motion of each bead respectively by program Stochastic choice within the scope of 0 °-360 °, left and right
The direction of motion of two beads is independent, uncorrelated mutually mutually;
Bead is according to straight line path, with the movement velocity motion of user's input; Between bead moving period, run into resolution chart edge, with
And the large rounded edge of central authorities, path will be changed according to mirror-reflection rule;
According to initial position and the direction of motion of random generation, initial position has the possibility entering right side motion at the bead in left side, just
The bead of beginning position on right side also has the possibility entering left side motion.
Compared with the prior art, technical characterstic of the present invention and effect:
The present invention is the composite test pattern of generation Digital Television UHDTV of facing down, to let it pass various test index requirement according to 4K form UHDTV standard meter, multiple content measurement is integrated in order a resolution chart, not only can test some typical level, vertical, oblique definition values, any level within the scope of 700-2160 tv line, vertical definition value can also be tested, and any oblique definition values within the scope of 800-3055 tv line.The display of 5% gray scale resolving power of display device, angle of visibility and the colour of skin can be tested whether normal.Can also test the three dimensional device obtaining display device to have nothing to do 18 gamut boundary sampling point data in uniform colour space Luv space, these data can be used to carry out the subjective assessment of display device chromatic resolution and three-dimensional gamut objective examination.
In addition, on the basis of carrying out the test of conventional UHDTV static performance index, a kind of method evaluating display device optional position random motion disposal ability can be provided.Initial position, the direction of motion of the moving cell in sequence are program and produce at random, and movement velocity is inputted by user to be determined, is also random for display device.Therefore the motion process ability of display device to be measured can be measured to greatest extent.
Accompanying drawing explanation
The static ultrahigh resolution display of Fig. 1 (UHDTV) composite test pattern.
Static ultrahigh resolution display (UHDTV) composite test pattern of the corresponding red primary of Fig. 2.
Static ultrahigh resolution display (UHDTV) composite test pattern of the corresponding green primary of Fig. 3.
Static ultrahigh resolution display (UHDTV) composite test pattern of the corresponding blue primary of Fig. 4.
Fig. 5 superposes ultrahigh resolution display (UHDTV) composite test pattern of dynamic test unit.
In figure:
1. ash end white square background;
2. reproduction ratio test cell;
3. continuous horizontal resolving power test unit;
4. continuous vertical definition test cell;
5. continuous oblique is to resolving power test unit;
6. definition representative value test cell;
7. colourity angle of visibility test cell;
8. colour of skin test cell;
9.21 Gray Cell;
10. multiburst unit;
11. linear frequency sweep ripple unit;
12. colour gamut test cells;
The continuous resolving power test unit of 13. corresponding red primaries;
The continuous resolving power test unit of 14. corresponding green primaries;
The continuous resolving power test unit of 15. corresponding blue primaries;
16. dynamic test unit.
Embodiment
The UHDTV resolution of standard 4K form is 3840 × 2160, and level, vertical definition limiting value are 2160, and oblique definition limiting value is 3055.
The present invention, according to 4K form UHDTV standard, has calculated various test index requirement.The multiple test cells such as reproduction ratio, horizontal definition, vertical definition, oblique definition, 21 GTGs, colourity angle of visibility test cell, colour gamut test cell, linear frequency sweep ripple, multiburst are devised in a width figure, and superpose dynamic random moving cell, meet multiple test needs.
1. ash end white square background: background is 50% white level; Background check is of a size of 112 × 112 pixels; Background check live width, height are 2 pixels.In view picture figure, there are 32 background checks in background level direction, and vertical direction has 18 background checks (horizontal direction lattice number: vertical direction lattice number=16:9).Background check can be used to check geometric distortion, nonlinear distortion and convergence, colour purity performance.
2. reproduction ratio test cell.Consider that the reproduction ratio of TV to be measured or display differs and reach 100% surely, all devise white frame in upper and lower, the left and right of composite test pattern.Upper and lower side frame height is 55 pixels, and left and right side frame width is 97 pixels.And 2 place 99%, 97%, 95%, 91% reproduction ratio marks are respectively provided respectively at upper and lower side frame place, 1 place 99%, 97%, 95%, 91% reproduction ratio mark is respectively provided at left and right side frame place.
3. continuous resolving power test unit.This unit is 6 groups of wedge shape lines bunch in resolution chart central authorities great circle.Can be used to test any level, the vertical definition value within the scope of 700-2160 tv line, and any oblique definition values within the scope of 800-3055 tv line.
Wherein, continuous horizontal resolving power test unit is upper and lower 2 bunches of wedge shape lines in great circle.The definition of top wedge shape line bunch is from 700 to 1300 consecutive variations, and the definition of below wedge shape line bunch is from 1200 to 2160 consecutive variations.Can within the scope of 700-2160 tv line continuous measurement horizontal definition.
Continuous vertical definition test cell is the 2 bunches of wedge shape lines in left and right in great circle.The definition of left side wedge shape line bunch is from 700 to 1300 consecutive variations, and the definition of right side wedge shape line bunch is from 1200 to 2160 consecutive variations.Can within the scope of 700-2160 tv line continuous measurement vertical definition.
Continuous oblique is 45 ° and 135 ° of wedge shape lines bunch in great circle to resolving power test unit.The definition of 45 ° of wedge shape lines bunch is from 800 to 1270 consecutive variations, and the definition of 135 ° of wedge shape lines bunch is from 1270 to 3055 consecutive variations.Can within the scope of 800-3055 tv line the oblique definition of continuous measurement.
4. definition representative value test cell.This unit is the outer upper left of central great circle, upper right, lower-left, bottom right totally 20 grids.
Wherein, in 5 grids of the outer upper left of central great circle, be respectively 2160 and 1440 line levels, vertical definition test cell, and the oblique resolving power test unit of 3055 lines.
1080 and 720 line levels, vertical definition test cell is respectively in 5 grids of the outer upper right of central authorities' great circle, and the oblique resolving power test unit of 2040 lines.
865 and 620 line levels, vertical definition test cell is respectively in 5 grids of the outer lower-left of central authorities' great circle, and the oblique resolving power test unit of 1530 lines.
2160 and 540 first levels, vertical definition test cell is respectively in 5 grids of the outer bottom right of central authorities' great circle, and the oblique resolving power test unit of 1220 lines.
5. colourity angle of visibility and colour of skin test cell.This unit is that the central great circle left and right sides is symmetrical, the colored block of vertical distribution.
Wherein, colourity angle of visibility test cell is 8 colored blocks from top to bottom, and their red (R), green (G), blue (B) chromatic value are followed successively by:
| Sequence number (from top to bottom) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| R | 115 | 194 | 56 | 70 | 175 | 231 | 187 | 8 | 122 |
| G | 82 | 150 | 61 | 148 | 54 | 199 | 86 | 133 | 122 |
| B | 68 | 130 | 150 | 73 | 60 | 31 | 149 | 161 | 121 |
Colour of skin test cell is below, each side 3 colour of skin blocks in this element.Their color space coordinate xyY value is followed successively by:
| Sequence number (from top to bottom) | 1 | 2 | 3 |
| x | 0.37 | 0.37 | 0.37 |
| y | 0.35 | 0.35 | 0.35 |
| Y | 19 | 22 | 25 |
6.21 Gray Cell.This unit is positioned at immediately below central great circle, for gray scale is from 0%-100%, 21 grey blocks changing at equal intervals by 5%.Distinguishable grey scale change whether is had, the gray scale resolving power of test display according to neighboring gradation block.
7. multiburst unit.This unit is positioned at the resolution chart upper left corner, by being superimposed upon 50% grey level, peak-to-peak amplitude be 40% 7 discrete wave groups form.The frequency of 7 wave groups is respectively 30MHz, 60MHz, 90MHz, 120MHz, 150MHz, 180MHz, 240MHz.
8. linear frequency sweep ripple unit.This unit is by being superimposed upon 50% grey level, and peak-to-peak value amplitude 40%, the sine wave that frequency linearly improves from left to right forms.Frequency range is 100kHz-240MHz.
9. colour gamut test cell.This unit is made up of 4 groups that are positioned at resolution chart corner colored blocks.
Wherein, upper left corner unit by respectively on three dimensional device has nothing to do saturated purple-saturated red, saturated red-saturated Huang in uniform colour space Luv space, saturated Huang-Bai, white-saturated purple, white-saturated red 5 gamut boundary lines the colored block of uniform sampling form.
Lower left corner unit by respectively on three dimensional device has nothing to do black-saturated green, saturated green-saturated Huang in uniform colour space Luv space, saturated Huang-saturated red, saturated red-Hei, black-saturated yellow 5 gamut boundary lines the colored block of uniform sampling form.
Upper right corner unit is by the saturated green-Bai in the uniform colour space Luv space that has nothing to do at three dimensional device respectively, and on white-saturated indigo plant, saturated indigo plant-saturated green grass or young crops, saturated green grass or young crops-saturated green, saturated green grass or young crops-Bai 5 gamut boundary lines, the colored block of uniform sampling forms.
Lower right corner unit by respectively on three dimensional device has nothing to do the saturated indigo plant-saturated green grass or young crops in uniform colour space Luv space, saturated green grass or young crops-Hei, black-saturated purple, saturated purple-saturated indigo plant, saturated indigo plant-Hei 5 gamut boundary lines the colored block of uniform sampling form.
Like this, this colour gamut test cell three dimensional device have nothing to do uniform colour space Luv space 18 gamut boundary lines on evenly get 6 points respectively.
These colored blocks can be used to carry out the subjective assessment of display device chromatic resolution and three-dimensional gamut objective examination.When carrying out the subjective assessment of display device chromatic resolution, observe the heterochromia degree between adjacent color lump.Evenly get on uniform colour space due to adjacent color lump and a little obtain, therefore between adjacent color lump, this display device colour gamut of the larger expression of heterochromia is wider.When carrying out three-dimensional gamut objective examination, drawing scatter diagram by this test data at the three dimensional device uniform colour space that has nothing to do, building three-dimensional gamut three-dimensional, calculate gamut volume, compare colour gamut size.
10. be the color resolution ability of test Ultra-high-definitiodisplay display device, the present invention generates the continuous resolving power test unit (in central great circle 6 groups of wedge shape lines bunch) of corresponding red, green, blue three primary colors respectively respectively.As shown in figs 2-4.
11. for measuring the ability of Ultra-high-definitiodisplay display device connection with high data rates moving image readability, and the present invention devises the colored bead of movement position, speed, direction completely random, is superimposed on and has on the static UHDTV composite test pattern of above-mentioned test cell.Its movement properties can not be predicted, therefore can measure the motion process ability of display device to be measured to greatest extent.
Moving cell designs the filled circles that 2 radiuses are 40 pixels, as shown in Figure 5.Owing to being distributed with continuous resolving power test unit in this resolution chart central authorities great circle, be most important test cell in whole resolution chart, for the needs accurately reading resolution line number, moving cell is designed to only occur outward in great circle.
The initial position of 2 motion beads, respectively outside left and right two parts, great circle of static composite test pattern, is produced at random by program.The initial position of two beads in left and right is independent, uncorrelated mutually mutually.
After bead setting in motion, the direction of motion of each bead is respectively by program Stochastic choice within the scope of 0 °-360 °, and the direction of motion of two beads in left and right is independent, uncorrelated mutually mutually.
Bead is according to straight line path, with movement velocity (pixel/frame) motion of user's input.Between bead moving period, run into the large rounded edge in resolution chart edge and central authorities, path will be changed according to mirror-reflection rule.According to the random initial position that produces and the direction of motion, initial position the bead in left side have enter right side motion may, the bead of initial position on right side also have enter left side motion may.
The present invention is further described below in conjunction with the drawings and specific embodiments.
The non-destructive testing figure of BMP form is shown in UHDTV display device to be measured.Adjustment position is located at center Screen.
1. test reproduction ratio: the overlapping positions of the screen border of observation test figure tetra-limit and display device to be measured, record reproduction ratio according to reproduction ratio mark on resolution chart with numerical value.
2. measuring resolution representative value: observe definition representative value test cell.Whether can black white 2 neighbors of clear display one according to each definition representative value block, determine whether the spatial resolution of this display device reaches each piece of nominal definition values.
3. measuring resolution limiting value: observe continuous resolving power test unit in central great circle.Clearly can tell the radial location of black white 2 neighbors according to wedge shape line bunch, in conjunction with the resolution line number corresponding to each radial location, determine the level of display device to be measured, vertical, oblique definition limiting value.
4. test gray scale resolving power: observe 21 GTG test cells, have perceptible gray difference according to whether between all neighboring gradation blocks, judge whether the gray scale resolving power of display to be measured reaches requirement.
5. test chromatic resolution: observe the heterochromia degree between adjacent color lump in colour gamut test cell.Between adjacent color lump, colour gamut is wider herein for this display device of the larger expression of heterochromia.
6. calculate three-dimensional gamut volume: the chromaticity coordinate recording each color lump in colour gamut test cell with colorimeter respectively, draw scatter diagram by this test data at the three dimensional device uniform colour space that has nothing to do, build three-dimensional gamut three-dimensional, calculate gamut volume, compare colour gamut size.
7. test the color resolution ability of Ultra-high-definitiodisplay display device: respectively the static ultrahigh resolution display UHDTV composite test pattern based on red, green, blue three primary colors is shown in display device to be measured, test reproduction ratio, static color definition.
8. test the motion process ability of display: in motion sequence generator, read in UHDTV composite test pattern, movement velocity is set and wants the frame number of generation, program can be that initial position and the direction of motion generate random number within the scope of agreement, produce the cycle tests with 2 moving cells, be saved as the fixed disk file of BMP form.When testing, by signal generator, generated cycle tests is shown on display device to be measured in order, whether the moving cell in observation test sequence still can clearly show when Continuous Play, whether there is fuzzy, conditions of streaking, the motion process ability of display to be measured is evaluated.
Claims (9)
1. a ultrahigh resolution display UHDTV composite test method, it is characterized in that, comprise the steps: that utilization is provided with the multiple test cells such as reproduction ratio, horizontal definition, vertical definition, oblique definition, 21 GTGs, colourity angle of visibility test cell, colour gamut test cell, linear frequency sweep ripple, multiburst, and superpose the composite test pattern of dynamic random moving cell, test UHDTV.
2. ultrahigh resolution display UHDTV composite test method as claimed in claim 1, it is characterized in that, composite test pattern is provided with ash end white square background: background is 50% white level; Background check is of a size of 112 × 112 pixels; Background check live width, height are 2 pixels, and in view picture figure, there are 32 background checks in background level direction, and vertical direction has 18 background checks, are used for checking geometric distortion, nonlinear distortion and convergence, colour purity performance; Reproduction ratio test cell: be equipped with white frame in upper and lower, the left and right of composite test pattern, upper and lower side frame height is 55 pixels, and left and right side frame width is 97 pixels; And 2 place 99%, 97%, 95%, 91% reproduction ratio marks are respectively provided respectively at upper and lower side frame place, 1 place 99%, 97%, 95%, 91% reproduction ratio mark is respectively provided at left and right side frame place.
3. ultrahigh resolution display UHDTV composite test method as claimed in claim 1, it is characterized in that, continuous resolving power test unit: this unit is 6 groups of wedge shape lines bunch in composite test pattern central authorities great circle, be used for testing any level, the vertical definition value within the scope of 700-2160 tv line, and any oblique definition values within the scope of 800-3055 tv line;
Wherein, continuous horizontal resolving power test unit is upper and lower 2 bunches of wedge shape lines in great circle.The definition of top wedge shape line bunch is from 700 to 1300 consecutive variations, and the definition of below wedge shape line bunch is from 1200 to 2160 consecutive variations; Continuous measurement horizontal definition within the scope of 700-2160 tv line;
Continuous vertical definition test cell is the 2 bunches of wedge shape lines in left and right in great circle, the definition of left side wedge shape line bunch is from 700 to 1300 consecutive variations, the definition of right side wedge shape line bunch from 1200 to 2160 consecutive variations, can within the scope of 700-2160 tv line continuous measurement vertical definition.
4. ultrahigh resolution display UHDTV composite test method as claimed in claim 1, it is characterized in that, continuous oblique is 45 ° and 135 ° of wedge shape lines bunch in great circle to resolving power test unit, the definition of 45 ° of wedge shape lines bunch is from 800 to 1270 consecutive variations, the definition of 135 ° of wedge shape lines bunch from 1270 to 3055 consecutive variations, the oblique definition of continuous measurement within the scope of 800-3055 tv line; Definition representative value test cell.This unit is the outer upper left of central great circle, upper right, lower-left, bottom right totally 20 grids; Wherein, in 5 grids of the outer upper left of central great circle, be respectively 2160 and 1440 line levels, vertical definition test cell, and the oblique resolving power test unit of 3055 lines.
5. ultrahigh resolution display UHDTV composite test method as claimed in claim 1, is characterized in that, be respectively 1080 and 720 line levels, vertical definition test cell in 5 grids of the outer upper right of central great circle, and the oblique resolving power test unit of 2040 lines;
865 and 620 line levels, vertical definition test cell is respectively in 5 grids of the outer lower-left of central authorities' great circle, and the oblique resolving power test unit of 1530 lines;
2160 and 540 first levels, vertical definition test cell is respectively in 5 grids of the outer bottom right of central authorities' great circle, and the oblique resolving power test unit of 1220 lines.
6. ultrahigh resolution display UHDTV composite test method as claimed in claim 1, is characterized in that, colourity angle of visibility and colour of skin test cell, is the colored block of central great circle left and right sides symmetry, vertical distribution;
Wherein, colourity angle of visibility test cell is 8 colored blocks from top to bottom, and their red R, green G, blue B chromatic value are followed successively by:
Colour of skin test cell is below, each side 3 colour of skin blocks in this element, and their color space coordinate xyY value is followed successively by:
。
7. ultrahigh resolution display UHDTV composite test method as claimed in claim 1, it is characterized in that, 21 Gray Cell are positioned at immediately below central great circle, for gray scale is from 0%-100%, 21 grey blocks changing at equal intervals by 5%, distinguishable grey scale change whether is had, the gray scale resolving power of test display according to neighboring gradation block; Multiburst unit is positioned at the composite test pattern upper left corner, by being superimposed upon 50% grey level, peak-to-peak amplitude be 40% 7 discrete wave groups form, the frequency of 7 wave groups is respectively 30MHz, 60MHz, 90MHz, 120MHz, 150MHz, 180MHz, 240MHz; Linear frequency sweep ripple unit is by being superimposed upon 50% grey level, and peak-to-peak value amplitude 40%, the sine wave that frequency linearly improves from left to right forms.Frequency range is 100kHz-240MHz.
8. ultrahigh resolution display UHDTV composite test method as claimed in claim 1, it is characterized in that, colour gamut test cell is made up of 4 groups that are positioned at resolution chart corner colored blocks;
Wherein, upper left corner unit by respectively on three dimensional device has nothing to do saturated purple-saturated red, saturated red-saturated Huang in uniform colour space Luv space, saturated Huang-Bai, white-saturated purple, white-saturated red 5 gamut boundary lines the colored block of uniform sampling form;
Lower left corner unit by respectively on three dimensional device has nothing to do black-saturated green, saturated green-saturated Huang in uniform colour space Luv space, saturated Huang-saturated red, saturated red-Hei, black-saturated yellow 5 gamut boundary lines the colored block of uniform sampling form;
Upper right corner unit is by the saturated green-Bai in the uniform colour space Luv space that has nothing to do at three dimensional device respectively, and on white-saturated indigo plant, saturated indigo plant-saturated green grass or young crops, saturated green grass or young crops-saturated green, saturated green grass or young crops-Bai 5 gamut boundary lines, the colored block of uniform sampling forms;
Lower right corner unit by respectively on three dimensional device has nothing to do the saturated indigo plant-saturated green grass or young crops in uniform colour space Luv space, saturated green grass or young crops-Hei, black-saturated purple, saturated purple-saturated indigo plant, saturated indigo plant-Hei 5 gamut boundary lines the colored block of uniform sampling form;
This colour gamut test cell three dimensional device have nothing to do uniform colour space Luv space 18 gamut boundary lines on evenly get 6 points respectively;
Colored block is used for carrying out the subjective assessment of display device chromatic resolution and three-dimensional gamut objective examination, when carrying out the subjective assessment of display device chromatic resolution, observes the heterochromia degree between adjacent color lump; Evenly get on uniform colour space due to adjacent color lump and a little obtain, therefore between adjacent color lump, this display device colour gamut of the larger expression of heterochromia is wider, when carrying out three-dimensional gamut objective examination, scatter diagram is drawn at the three dimensional device uniform colour space that has nothing to do by this test data, structure three-dimensional gamut is three-dimensional, calculate gamut volume, compare colour gamut size.
9. ultrahigh resolution display UHDTV composite test method as claimed in claim 1, it is characterized in that, superposition dynamic random moving cell is the colored bead of movement position, speed, direction completely random, its movement properties can not be predicted, therefore can measure the motion process ability of display device to be measured to greatest extent;
Moving cell designs the filled circles that 2 radiuses are 40 pixels, and only occurs outward in great circle;
The initial position of 2 motion beads, respectively outside left and right two parts, great circle of static composite test pattern, produces at random; The initial position of two beads in left and right is independent, uncorrelated mutually mutually;
After bead setting in motion, the direction of motion of each bead is respectively by program Stochastic choice within the scope of 0 °-360 °, and the direction of motion of two beads in left and right is independent, uncorrelated mutually mutually;
Bead is according to straight line path, with the movement velocity motion of user's input; Between bead moving period, run into the large rounded edge in resolution chart edge and central authorities, path will be changed according to mirror-reflection rule;
According to the random initial position that produces and the direction of motion, initial position the bead in left side have enter right side motion may, the bead of initial position on right side also have enter left side motion may.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110519588A (en) * | 2019-09-05 | 2019-11-29 | 普联技术有限公司 | For the Approach for detecting image sharpness of focusing, device and photographic device |
| CN110715794A (en) * | 2018-07-12 | 2020-01-21 | 夏普株式会社 | Characteristic evaluation system for evaluating characteristics of display device |
| CN110719459A (en) * | 2019-10-21 | 2020-01-21 | 中国传媒大学 | Test chart for measuring intrinsic resolution and reproduction resolution of VR glasses |
| CN113709449A (en) * | 2021-08-09 | 2021-11-26 | 中国电子科技集团公司第三研究所 | Static 8K ultrahigh definition testing method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1585497A (en) * | 2004-05-28 | 2005-02-23 | 天津大学 | Digital TV-set composite testing picture and generating method thereof |
| CN1585499A (en) * | 2004-05-28 | 2005-02-23 | 天津大学 | Articulation of digital TV-set, overscanning testing picture and generating method thereof |
| CN1791232A (en) * | 2005-11-16 | 2006-06-21 | 天津大学 | High-precision HDTV image definition test pattern and its forming method |
-
2015
- 2015-07-01 CN CN201510376850.6A patent/CN104967842B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1585497A (en) * | 2004-05-28 | 2005-02-23 | 天津大学 | Digital TV-set composite testing picture and generating method thereof |
| CN1585499A (en) * | 2004-05-28 | 2005-02-23 | 天津大学 | Articulation of digital TV-set, overscanning testing picture and generating method thereof |
| CN1791232A (en) * | 2005-11-16 | 2006-06-21 | 天津大学 | High-precision HDTV image definition test pattern and its forming method |
Non-Patent Citations (2)
| Title |
|---|
| 北京赛西认证有限责任公司: "《超高清显示认证技术规范》", 《CESI》 * |
| 李桂苓，李秀敏，赵希: "《数字电视图像清晰度》", 《标准、检测与仪器》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715794A (en) * | 2018-07-12 | 2020-01-21 | 夏普株式会社 | Characteristic evaluation system for evaluating characteristics of display device |
| CN110519588A (en) * | 2019-09-05 | 2019-11-29 | 普联技术有限公司 | For the Approach for detecting image sharpness of focusing, device and photographic device |
| CN110519588B (en) * | 2019-09-05 | 2021-03-19 | 普联技术有限公司 | Image definition detection method and device for focusing and camera device |
| CN110719459A (en) * | 2019-10-21 | 2020-01-21 | 中国传媒大学 | Test chart for measuring intrinsic resolution and reproduction resolution of VR glasses |
| CN110719459B (en) * | 2019-10-21 | 2021-06-04 | 中国传媒大学 | Method for measuring VR glasses reproduction resolution |
| CN113709449A (en) * | 2021-08-09 | 2021-11-26 | 中国电子科技集团公司第三研究所 | Static 8K ultrahigh definition testing method and device |
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