CN102752629B - Visual angle test method for three-dimensional image display - Google Patents
Visual angle test method for three-dimensional image display Download PDFInfo
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- CN102752629B CN102752629B CN201210213298.5A CN201210213298A CN102752629B CN 102752629 B CN102752629 B CN 102752629B CN 201210213298 A CN201210213298 A CN 201210213298A CN 102752629 B CN102752629 B CN 102752629B
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Abstract
The invention provides a visual angle test method for three-dimensional image display, comprising the following steps of: aiming the central axis of a light colorimeter lens at the normal direction at the center of a screen to be tested, outputting a white/black field signal to a left eye passageway and a right eye passageway of the screen to be tested by a signal source, and respectively arranging a left spectacle lens and a right spectacle lens in the front of the light colorimeter lens, so that an horizontal inclined angle and an vertical inclined angle can be formed between the plane of the screen to be tested and the axial direction of the light colorimeter, and the luminance and crosstalk visual angles along with the left direction, right direction, upper direction and lower direction of the screen to be tested under the left spectacle lens and the right spectacle lens can be measured. Therefore, the minimum in the luminance visual angle and the crosstalk visual angle of the left spectacle lens and the right spectacle lens along with the left direction, the right direction, the upper direction and the lower direction is taken as the visual angle along with the direction: phiL, phiR, phiU, and phiD, so that the horizontal visual angle of the screen to be tested is phiHOR=phiL+phiR, and the vertical visual angle phiVER=phiU+phiD. According to the test method provided by the invention, the crosstalk characteristic of three-dimensional display equipment is considered, and a typical single-color test signal is used, so that the test efficiency can be improved, and the statistic analysis of a test data result can be conveniently carried out.
Description
Technical field
The invention belongs to stereoscopic TV and stereo display technique field, relate to a kind of stereo-picture display quality method of testing, specifically, is a kind of stereo-picture display of visually angular measurement method for testing.
Background technology
User is in the time watching TV or display, watch visual angle to be divided into horizontal view angle and vertical angle of view, horizontal view angle refers to that the vertical normal (being the vertical imaginary line of display middle) with display is as the criterion, and user's sight line is at normal left or the right-hand certain angle becoming with normal; Vertical angle of view refers to the certain angle that user's sight line becomes with normal above or below normal.The brightness meeting of general screen display reduces along with the increase at visual angle, watching brightness and color effect from screen dead ahead is best, no matter vertically still horizontal direction deflection, brightness and color effect all can decline gradually, and conference is crossed at visual angle makes brightness and color effect drop to the unacceptable degree of user.Angle of visibility is one of main performance index of image demonstration product, in China electron trade standard SJ/T11348-2006 " Digital Television flat-panel monitor method of measurement ", be main measurement parameter while testing using brightness as angle of visibility, angle of visibility is defined as the visual angle in the time that brightness drops to certain numerical value.
At present, television product has entered the stereo display epoch, and stereoscopic TV has been overturned the displaying principle of traditional tv and watched mode, and its performance measuring and evaluating index also will be distinguished to some extent.The stereo display screen of current stereoscopic TV on the market mainly adopts time-sharing type and two kinds of three-dimensional imaging modes of beam splitting type, separates right and left eyes picture by timesharing or light splitting mode, forms stereoscopic vision.The stereo display screen of timesharing imaging mode generally adopts liquid crystal shutter type anaglyph spectacles, and the fast blink of employing liquid crystal comes alternately to block respectively the picture of right and left eyes, the picture difference that right and left eyes is seen; The stereo display screen of spectroscopic imaging mode generally adopts optical polarization formula anaglyph spectacles, the polarised light eyeglass that right and left eyes eyeglass is different directions, the picture difference that right and left eyes is seen by optical polarization principle.The anaglyph spectacles of two kinds of modes of timesharing and light splitting can not be mixed.And, even if be all time-sharing type glasses, between different manufacturers product, due to communication protocol difference, can cause lock-out between glasses and screen, generally can not be general; Even if be all beam splitting type glasses, due to the optical characteristics difference of polarized lenses, generally do not advise generally yet, so tested stereo display screen and anaglyph spectacles used are supporting, while testing certain stereo display screen, should select supporting with it anaglyph spectacles.
Stereoscopic TV right and left eyes picture should be independent pictures, but due to stereo display screen and anaglyph spectacles device or performance reason, the right and left eyes picture that user watches cannot be accomplished to separate completely, and right and left eyes picture can influence each other, and formation is crosstalked.Crosstalk and can cause the third dimension that user watches to reduce, image quality declines, and easy fatigue etc., so crosstalk effect is the important performance characteristic of stereo display product.
In traditional television set or display product angle of visibility method of testing, owing to being two dimension demonstration, the impact that crosstalk does not bring, but in the angle of visibility test of stereo display product, along with user watches the increase at visual angle, the crosstalk effect of screen display can change, if crosstalked along with the inclination of angle worsens obvious, television set watches the visual angle can be narrow, will affect user's viewing effect, so should be using one of judgement parameter of crosstalking in angle of visibility test.
There is no at present the method for testing of standard for three-dimensional television image display of visually angle index.Stereoscopic TV is in developing stage at present, and means of testing is also immature, can only continue to use at present the method for 2D measuring pictures brightness for angle of visibility index, and this kind of method do not considered the crosstalk effect of stereoscopic TV.
Therefore need a kind of stereo-picture display of visually angular measurement method for testing, the feature showing in conjunction with stereoscopic TV, comprehensive main performance index obtain angle of visibility test result, and in existing document, also do not mention similar method of testing.
Summary of the invention
For the deficiencies in the prior art, the present invention proposes a kind of stereo-picture display of visually angular measurement method for testing, measure the method for the horizontal and vertical angle of visibility of stereo display screen, complete by following step:
Step 1: relative position calibration between photochromism meter and tested screen;
By tested photochromism meter alignment lens stereo display screen, tested stereo display screen place plane is perpendicular to horizontal plane, photochromism meter optical center axis is overlapped with tested stereo display screen centre normal, and in tested stereo display screen center and photochromism meter, distance is in the heart the height of 1 ~ 5 times of tested stereo display screen; Order is now the initial condition between tested stereo display screen and photochromism meter.
Step 2: white that to store grey level in three-dimensional signal source be x% the black signal in the whole field that signal and grey level are y% in the whole field.
Step 3: the left eyeglass lens of the anaglyph spectacles mating with tested stereo display screen is placed in before photochromism meter camera lens; White signal in the whole field by from three-dimensional signal source to the left eye passage output x% of tested screen, the black signal in the whole field of right eye passage output y%.
Step 4: measure the brightness angle of visibility α on left and right, the upper and lower four direction of tested stereo display screen under left eyeglass lens
lL, α
lR, α
lU, α
lD.
Step 5: tested stereo display screen and photochromism meter are restPosed, and step 3 neutral body glasses left eyeglass lens is changed to right eye eyeglass, measure subsequently the brightness angle of visibility β on left and right, the upper and lower four direction of tested stereo display screen under right eye eyeglass
lL, β
lR, β
lU, β
lD.
Step 6: tested stereo display screen and photochromism meter are restPosed, and the left eyeglass lens of the anaglyph spectacles mating with tested screen is placed in before photochromism meter camera lens; Measure the angle of visibility α that crosstalks on left and right, the upper and lower four direction of tested screen under left eyeglass lens
cL, α
cR, α
cU, α
cD.
Step 7: tested stereo display screen and photochromism meter are restPosed, and step 6 neutral body glasses left eyeglass lens is changed to right eye eyeglass, make photochromism meter camera lens axis by right eye center of lens, measure subsequently the angle of visibility β that crosstalks on left and right, the upper and lower four direction of tested screen under right eye eyeglass
cL, β
cR, β
cU, β
cD.
Step 8: the horizontal angle of visibility and vertical angle of visibility that obtain tested stereo display screen;
The horizontal angle of visibility of tested stereo display screen obtains by following method:
I, choose tested stereo display screen left brightness angle of visibility α upwards under left eyeglass lens and right eye eyeglass
lL, β
lLand the angle of visibility α that crosstalks
cL, β
cL; Make α
lL, β
lL, α
cL, β
cLin minimum angles be
II, choose the brightness angle of visibility α in tested stereo display screen right under left eyeglass lens and right eye eyeglass
lR, β
lRand the angle of visibility α that crosstalks
cR, β
cR; Make α
lR, β
lR, α
cR, β
cRin minimum angles be
The horizontal angle of visibility of III, tested stereo display screen
for
The vertical angle of visibility of stereo display screen obtains by following method:
I, choose tested stereo display screen top under left eyeglass lens and right eye eyeglass to brightness angle of visibility α
lU, β
lUand the angle of visibility α that crosstalks
cU, β
cU; α
lU, β
lU, α
cU, β
cUin minimum angles be
iI, choose tested stereo display screen top under left eyeglass lens and right eye eyeglass to brightness angle of visibility α
lD, β
lDand the angle of visibility α that crosstalks
cD, β
cD; α
lD, β
lD, α
cD, β
cDin minimum angles be
The vertical angle of visibility of III, tested stereo display screen
for
The invention has the advantages that:
(1) method of testing in the present invention has been considered the important performance characteristic of stereoscopic display device---crosstalk, test result has embodied the exclusive visual characteristic of stereo display;
(2) testing equipment in the present invention has versatility, is applicable to the angle of visibility test of multiple stereoscopic display device, as stereoscopic TV, three-dimensional display and stereo projection display screen;
(3) in the present invention, use representational monochromatic test signal, improved testing efficiency, be convenient to the statistical analysis of test data result.
Accompanying drawing explanation
Fig. 1 is stereo-picture display of visually angular measurement method for testing flow chart of the present invention;
Fig. 2 is relative position schematic diagram between photochromism meter of the present invention and tested screen;
Fig. 3 is stereo-picture display of visually angular measurement test system schematic diagram of the present invention;
Fig. 4 regulates horizontal view angle schematic top plan view by the rotation of The Cloud Terrace in test macro;
Fig. 5 regulates vertical angle of view schematic diagram by the rotation of The Cloud Terrace in test macro;
Fig. 6 is the mobile horizontal view angle schematic diagram that regulates by photochromism meter in test macro;
Fig. 7 is the mobile vertical angle of view schematic diagram that regulates by photochromism meter in test macro.
In figure:
The tested screen 2-of 1-photochromism meter 3-The Cloud Terrace 4-support
5-base 6-controls computer 7-three-dimensional signal source
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details.
Stereo-picture display of visually angular measurement method for testing of the present invention, as shown in Figure 1, completes by following step:
Step 1: relative position calibration between photochromism meter and tested screen;
By photochromism meter 2 alignment lens tested screen 1(time-sharing type stereo display screen or beam splitting type stereo display screen), tested screen 1 place plane is perpendicular to horizontal plane, photochromism meter 2 optical center axis are overlapped with tested screen 1 centre normal, and in tested screen 1 center and photochromism meter 2, distance is in the heart the height (being tested screen top margin and base spacing) of 3 times of tested screens, as shown in Figure 2, now the horizontal and vertical visual angle between photochromism meter 2 and tested screen 1 is 0 °, and order is now the initial condition between tested screen 1 and photochromism meter 2.Wherein, so-called horizontal view angle is angle in the horizontal direction between tested screen 1 centre normal and photochromism meter 2 camera lens axis; Vertical angle of view is the angle in vertical-horizontal direction between tested screen 1 centre normal and photochromism meter 2 camera lens axis.
Step 2: store grey level and be 100% the white black signal in the whole field that signal and grey level are 0% in three-dimensional signal source 7 in the whole field.
Step 3: by the anaglyph spectacles mating with tested screen 1 (the corresponding time-sharing type anaglyph spectacles of time-sharing type stereo display screen, the corresponding beam splitting type anaglyph spectacles of beam splitting type stereo display screen) left eyeglass lens be placed in before photochromism meter 2 camera lenses, make photochromism meter 2 camera lens axis by left eyeglass lens center, the light of tested screen 1 enters light colorimeter 2 camera lenses after by left eyeglass lens; White signal in the whole field by from three-dimensional signal source 7 to the left eye passage output 100% of tested screen 1, the black signal in the whole field of right eye passage output 0%.
Step 4: measure the brightness angle of visibility α on left and right, the upper and lower four direction of tested screen 1 under left eyeglass lens
lL, α
lR, α
lU, α
lD, be specially:
A, measure between tested screen 1 and photochromism meter 2 when the initial condition brightness LL of tested screen 1 central point by photochromism meter 2
0;
B, successively increase the horizontal view angle of photochromism meter 2 with respect to tested screen 1 to tested screen 1 left, each angle that increases is for being not more than 5 °, each increase is measured tested screen 1 center brightness by photochromism meter 2 behind horizontal view angle, until tested screen 1 center brightness that photochromism meter 2 records is less than LL
0/ 3, the whole LL of being more than or equal to that record by photochromism meter 2
0in/3 tested screen 1 center brightness, the corresponding horizontal view angle of minimum value is tested screen 1 left brightness angle of visibility α upwards under left eyeglass lens
lL;
C, tested screen 1 and photochromism meter 2 are restPosed, to the right-hand horizontal view angle of photochromism meter 2 with respect to tested screen 1 that successively increase of tested screen 1, each angle that increases is not more than 5 °, each increase is measured tested screen 1 center brightness by photochromism meter 2 behind horizontal view angle, until tested screen 1 center brightness that photochromism meter 2 records is less than LL
0/ 3, the whole LL of being more than or equal to that record by photochromism meter 2
0in/3 tested screen 1 center brightness, the corresponding horizontal view angle of minimum value is the brightness angle of visibility α in tested screen 1 right under left eyeglass lens
lR;
D, tested screen 1 and photochromism meter 2 are restPosed, successively increase the vertical angle of view of photochromism meter 2 with respect to tested screen 1 to tested screen 1 top, each angle that increases is not more than 5 °, each increase is measured tested screen 1 center brightness by photochromism meter 2 behind vertical angle of view, until tested screen 1 center brightness that photochromism meter 2 records is less than LL
0/ 3, the whole LL of being more than or equal to that record by photochromism meter 2
0in/3 tested screen 1 center brightness, the corresponding vertical angle of view of minimum value is tested screen 1 top brightness angle of visibility α upwards under left eyeglass lens
lU;
E, tested screen 1 and photochromism meter 2 are restPosed, successively increase the vertical angle of view of photochromism meter 2 with respect to tested screen 1 to tested screen 1 below, each angle that increases is not more than 5 °, each increase is measured tested screen 1 center brightness by photochromism meter 2 behind horizontal view angle, until tested screen 1 center brightness that photochromism meter 2 records is less than LL
0/ 3, the whole LL of being more than or equal to that record by photochromism meter 2
0in/3 tested screen 1 center brightness, the corresponding vertical angle of view of minimum value is tested screen 1 below brightness angle of visibility α upwards under left eyeglass lens
lD.
Step 5: tested screen 1 is restPosed with photochromism meter 2, and step 3 neutral body glasses left eyeglass lens is changed to right eye eyeglass, make photochromism meter 2 camera lens axis by right eye center of lens, the A ~ E that carries out subsequently step 3 obtains the brightness angle of visibility β on left and right, the upper and lower four direction of tested screen 1 under right eye eyeglass
lL, β
lR, β
lU, β
lD.
Step 6: tested screen 1 is restPosed with photochromism meter 2, and the left eyeglass lens of the anaglyph spectacles mating with tested screen 1 is placed in before photochromism meter 2 camera lenses, make photochromism meter 2 camera lens axis by left eyeglass lens center; Measure the angle of visibility α that crosstalks on left and right, the upper and lower four direction of tested screen 1 under left eyeglass lens
cL, α
cR, α
cU, α
cD;
A, successively increase the horizontal view angle of photochromism meter 2 with respect to tested screen 1 to tested screen 1 left, each angle that increases is not more than 5 °, measure each tested screen 1 central point crossfire value behind horizontal view angle that increases, until the tested screen 1 central point crossfire value recording is greater than 20%, the whole corresponding horizontal view angles of maximum that are less than or equal in 20% tested screen 1 central point crossfire value that record are the tested screen 1 left angle of visibility α that crosstalks upwards under left eyeglass lens
cL;
B, tested screen 1 and photochromism meter 2 are restPosed, to the right-hand horizontal view angle of photochromism meter 2 with respect to tested screen 1 that successively increase of tested screen 1, each angle that increases is not more than 5 °, measure each tested screen 1 central point crossfire value behind horizontal view angle that increases, until the tested screen 1 central point crossfire value recording is greater than 20%, the whole corresponding horizontal view angles of maximum that are less than or equal in 20% tested screen 1 central point crossfire value that record are the angle of visibility α that crosstalks of tested screen 1 right under left eyeglass lens
cR;
C, tested screen 1 and photochromism meter 2 are restPosed, successively increase the vertical angle of view of photochromism meter 2 with respect to tested screen 1 to tested screen 1 top, each angle that increases is not more than 5 °, measure each tested screen 1 central point crossfire value behind horizontal view angle that increases, until the tested screen 1 central point crossfire value recording is greater than 20%, the whole corresponding verticals angle of view of maximum that are less than or equal in 20% tested screen 1 central point crossfire value that record are the angle of visibility α that crosstalks of direction on tested screen 1 under left eyeglass lens
cU;
D, tested screen 1 and photochromism meter 2 are restPosed, successively increase the vertical angle of view of photochromism meter 2 with respect to tested screen 1 to tested screen 1 below, each angle that increases is not more than 5 °, measure each tested screen 1 central point crossfire value behind horizontal view angle that increases, until the tested screen 1 central point crossfire value recording is greater than 20%, the whole corresponding verticals angle of view of maximum that are less than or equal in 20% tested screen 1 central point crossfire value that record are the angle of visibility α that crosstalks of 1 time direction of tested screen under left eyeglass lens
cD;
In above-mentioned a ~ d, the measurement of screen center's point crossfire value completes by following method:
1. the black signal in the whole field that is 0% by three-dimensional signal source 7 to the left eye passage output gray level level of tested screen 1, the white signal in the whole field that is 100% to right eye passage output gray level level, measures current photochromism meter 2 with respect to the tested screen 1 Strehl ratio L under level or the vertical angle of view of tested screen 1 by photochromism meter 2
0, B-W;
2. the black signal in the whole field that is 0% by three-dimensional signal source 7 to the left eye passage output gray level level of tested screen 1, the black signal in the whole field that is 0% to right eye passage output gray level level, by photochromism meter 2 measure current by photochromism meter 2 with respect to the tested screen 1 Strehl ratio L under level or the vertical angle of view of tested screen 1
0, B-B;
3. the white signal in the whole field that is 100% by three-dimensional signal source 7 to the left eye passage output gray level level of tested screen 1, the white signal in the whole field that right eye passage output gray level level is 100%, measures current photochromism meter 2 with respect to the tested screen 1 Strehl ratio L under level or the vertical angle of view of tested screen 1 by photochromism meter 2
0, W-W;
4. the tested screen 1 central point crossfire value XL under level or the vertical angle of view between current tested screen 1 and photochromism meter 2
0for:
Step 7: tested screen 1 is restPosed with photochromism meter 2, and step 6 neutral body glasses left eyeglass lens is changed to right eye eyeglass, make photochromism meter 2 camera lens axis by right eye center of lens, a ~ d that carries out subsequently step 6 obtains the angle of visibility β that crosstalks on left and right, the upper and lower four direction of tested screen 1 under right eye eyeglass
cL, β
cR, β
cU, β
cD.
Step 8: the horizontal angle of visibility and vertical angle of visibility that obtain tested screen 1;
The horizontal angle of visibility of tested screen 1 obtains by following method:
I, choose tested screen 1 left brightness angle of visibility α upwards under left eyeglass lens and right eye eyeglass
lL, β
lLand the angle of visibility α that crosstalks
cL, β
cL; Make α
lL, β
lL, α
cL, β
cLin minimum angles be
II, choose the brightness angle of visibility α in tested stereo display screen right under left eyeglass lens and right eye eyeglass
lR, β
lRand the angle of visibility α that crosstalks
cR, β
cR; Make α
lR, β
lR, α
cR, β
cRin minimum angles be
The horizontal angle of visibility of III, tested stereo display screen
for
The vertical angle of visibility of stereo display screen obtains by following method:
I, choose tested stereo display screen top under left eyeglass lens and right eye eyeglass to brightness angle of visibility α
lU, β
lUand the angle of visibility α that crosstalks
cU, β
cU; α
lU, β
lU, α
cU, β
cUin minimum angles be
II, choose tested stereo display screen top under left eyeglass lens and right eye eyeglass to brightness angle of visibility α
lD, β
lDand the angle of visibility α that crosstalks
cD, β
cD; α
lD, β
lD, α
cD, β
cDin minimum angles be
The vertical angle of visibility of III, tested stereo display screen
for
Stereo-picture display of visually angular measurement method for testing of the present invention has been considered the important performance characteristic of stereoscopic display device---crosstalks, test result has embodied the exclusive visual characteristic of stereo display, be applicable to the angle of visibility test of multiple stereoscopic display device, and use representational monochromatic test signal, improve testing efficiency, be convenient to the statistical analysis of test data result.
Also provide a kind of stereo-picture display of visually angular measurement test system based on said method the present invention, as shown in Figure 3, comprise photochromism meter 2, The Cloud Terrace 3, three-dimensional signal source 7, anaglyph spectacles and control computer 6.The Cloud Terrace 3 is fixed on horizontal plane by base 5, tested screen 1 is fixed on The Cloud Terrace 3, make tested screen 1 place plane perpendicular to ground, control computer 6 is used for controlling The Cloud Terrace 3 and carries out level and pitch rotation, thereby drives tested screen 1 together to carry out level and elevating movement with the Forbidden City The Cloud Terrace 3.Three-dimensional signal source 7 is used for storing test signal, and test signal is sent to tested screen 1, and tested screen 1 receives three-dimensional signal and on screen, shows.Photochromism meter 2 is arranged on support 4 tops, by support 4, photochromism meter 2 is arranged on to tested screen 1 dead ahead, by regulating support 4 highly to make photochromism meter 2 camera lenses relative with tested screen 1, and the central shaft of photochromism meter 2 overlaps with tested screen 1 centre normal, and now the horizontal and vertical visual angle between tested screen 1 and horizontal measuring instrument is 0 °.
While test by above-mentioned stereo-picture display of visually angular measurement test system, if tested stereo display screen can together horizontally rotate with pitching and rotate with The Cloud Terrace 3, as liquid crystal panel TV set, photochromism meter 2 can rotate realization by tested screen 1 with respect to the level of tested screen 1 or the variation of vertical angle of view.The horizontal view angle change procedure of photochromism meter 2 is: while coincidence with tested screen 1 centre normal take the central shaft of photochromism 2 as initial state, photochromism meter 2 keeps motionless, take the center line of tested screen 1 vertical direction as axle, by tested screen 1 to its left to or right rotation, as shown in Figure 4, realize photochromism meter 2 with respect to tested screen 1 left to or right on the increase of horizontal view angle, in this process, photochromism meter 2 optical center points are aimed at tested screen 1 central point all the time.The vertical angle of view change procedure of photochromism meter 2 is: while coincidence with tested screen 1 centre normal take the central shaft of photochromism 2 as initial state, photochromism meter 2 keeps motionless, take tested screen 1 cross central line as axle, by tested screen 1 to its on the rotation of direction or downward direction, as shown in Figure 5, realize photochromism meter 2 with respect to 1 time direction of tested screen or the upwards increase of horizontal view angle of top, in this process, photochromism meter 2 optical center points are aimed at tested screen 1 central point all the time.But while adopting test macro of the present invention to change photochromism meter 2 relatively with the vertical angle of view of tested screen 1, because tested screen 1 size is larger, therefore be subject between The Cloud Terrace 3 and tested screen 1 restriction of mounting points in vertical direction, be difficult to thus realize The Cloud Terrace 3 and drive tested screen 1 to realize the elevating movement in vertical direction.Therefore in the time adopting test macro of the present invention, while coincidence with tested screen 1 centre normal take the central shaft of photochromism 2 as initial state, can will after tested screen 1 half-twist, be arranged on The Cloud Terrace 3, make thus photochromism meter 2 motionless, take the center line of tested screen 1 vertical direction now as axle, level is rotated to the left or to the right, thereby now the horizontal view angle of tested screen 1 can be equivalent to tested screen 1 vertical angle of view, in this process, photochromism meter 2 optical center points are aimed at tested screen 1 central point all the time.
If tested screen 1 can not be rotated with The Cloud Terrace 3, as excessive in display screen size or display screen is projection screen, and the level of tested photochromism meter 2 or the variation of vertical angle of view are completed by the movement of photochromism meter 2.The horizontal view angle change procedure of photochromism meter 2: tested screen 1 is motionless, while coincidence with tested screen 1 centre normal take the central shaft of photochromism 2 as initial state, take tested screen 1 central point as axially left or move right, as shown in Figure 6, realize right or the left upwards increase of horizontal view angle of photochromism meter 2 with respect to tested screen 1.The vertical angle of view change procedure of photochromism meter 2: tested stereo display screen is motionless, while coincidence with tested screen 1 centre normal take the central shaft of photochromism 2 as initial state, move up or down take tested screen 1 central point as axle, as shown in Figure 7, realize the increase of vertical angle of view in photochromism meter 2 upper or lowers.In the moving process of above-mentioned photochromism meter 2, need to keep photochromism meter 2 optical center points with tested screen 1 central point apart from constant, and photochromism meter 2 optical center points remain with screen center's point and aim at.
Claims (6)
1. a stereo-picture display of visually angular measurement method for testing, is characterized in that: complete by following step:
Step 1: relative position calibration between photochromism meter and tested screen;
By tested photochromism meter alignment lens stereo display screen, tested stereo display screen place plane is perpendicular to horizontal plane, photochromism meter optical center axis is overlapped with tested stereo display screen centre normal, and in tested stereo display screen center and photochromism meter, distance is in the heart the height of 1～5 times of tested stereo display screen; Order is now the initial condition between tested stereo display screen and photochromism meter;
Step 2: white that to store grey level in three-dimensional signal source be x% the black signal in the whole field that signal and grey level are y% in the whole field;
Step 3: the left eyeglass lens of the anaglyph spectacles mating with tested stereo display screen is placed in before photochromism meter camera lens, make photochromism meter camera lens axis by left eyeglass lens center, white signal in the whole field by from three-dimensional signal source to the left eye passage output x% of tested screen, the black signal in the whole field of right eye passage output y%;
Step 4: measure the brightness angle of visibility α on left and right, the upper and lower four direction of tested stereo display screen under left eyeglass lens
lL, α
lR, α
lU, α
lD;
Step 5: tested stereo display screen and photochromism meter are restPosed, and step 3 neutral body glasses left eyeglass lens is changed to right eye eyeglass, make photochromism meter camera lens axis by right eye center of lens, measure subsequently the brightness angle of visibility β on left and right, the upper and lower four direction of tested stereo display screen under right eye eyeglass
lL, β
lR, β
lU, β
lD;
Step 6: tested stereo display screen and photochromism meter are restPosed, and the left eyeglass lens of the anaglyph spectacles mating with tested screen is placed in before photochromism meter camera lens, make photochromism meter camera lens axis by left eyeglass lens center, measure the angle of visibility α that crosstalks on left and right, the upper and lower four direction of tested screen under left eyeglass lens
cL, α
cR, α
cU, α
cD;
Step 7: tested stereo display screen and photochromism meter are restPosed, and step 6 neutral body glasses left eyeglass lens is changed to right eye eyeglass, make photochromism meter camera lens axis by right eye center of lens, measure subsequently the angle of visibility β that crosstalks on left and right, the upper and lower four direction of tested screen under right eye eyeglass
cL, β
cR, β
cU, β
cD; Be specially:
A, successively increase the horizontal view angle of photochromism meter with respect to tested stereo display screen to tested stereo display screen left, each angle that increases is not more than 5 °, measure each tested stereo display screen central point crossfire value behind horizontal view angle that increases, until the tested stereo display screen central point crossfire value recording is greater than m, the corresponding horizontal view angle of maximum in the tested stereo display screen central point crossfire value of whole m of being less than or equal to that 10%≤m≤30% item records is the tested stereo display screen left angle of visibility of crosstalking upwards;
B, tested stereo display screen and photochromism meter are restPosed, to the right-hand horizontal view angle of photochromism meter with respect to tested stereo display screen that successively increase of tested stereo display screen, each angle that increases is not more than 5 °, measure each tested stereo display screen central point crossfire value behind horizontal view angle that increases, until the tested stereo display screen central point crossfire value recording is greater than m, the corresponding horizontal view angle of maximum in the tested stereo display screen central point crossfire value of the whole m of being less than or equal to that record is the angle of visibility of crosstalking of tested stereo display screen right,
C, tested stereo display screen and photochromism meter are restPosed, successively increase the vertical angle of view of photochromism meter with respect to tested stereo display screen to tested stereo display screen top, each angle that increases is not more than 5 °, measure each tested stereo display screen central point crossfire value behind horizontal view angle that increases, until the tested stereo display screen central point crossfire value recording is greater than m, the corresponding vertical angle of view of maximum in the tested stereo display screen central point crossfire value of the whole m of being less than or equal to that record be tested stereo display screen top to the angle of visibility of crosstalking,
D, tested stereo display screen and photochromism meter are restPosed, successively increase the vertical angle of view of photochromism meter with respect to tested stereo display screen to tested stereo display screen below, each angle that increases is not more than 5 °, measure each tested stereo display screen central point crossfire value behind horizontal view angle that increases, until the tested stereo display screen central point crossfire value recording is greater than m, the corresponding vertical angle of view of maximum in the tested stereo display screen central point crossfire value of the whole m of being less than or equal to that record be tested stereo display screen below to the angle of visibility of crosstalking,
Step 8: the horizontal angle of visibility and vertical angle of visibility that obtain tested stereo display screen;
The horizontal angle of visibility of tested stereo display screen obtains by following method:
I, choose tested stereo display screen left brightness angle of visibility α upwards under left eyeglass lens and right eye eyeglass
lL, β
lLand the angle of visibility α that crosstalks
cL, β
cL; Make α
lL, β
lL, α
cL, β
cLin minimum angles be
II, choose the brightness angle of visibility α in tested stereo display screen right under left eyeglass lens and right eye eyeglass
lR, β
lRand the angle of visibility α that crosstalks
cR, β
cR; Make α
lR, β
lR, α
cR, β
cRin minimum angles be
The horizontal angle of visibility of III, tested stereo display screen
for
The vertical angle of visibility of stereo display screen obtains by following method:
I, choose tested stereo display screen top under left eyeglass lens and right eye eyeglass to brightness angle of visibility α
lU, β
lUand the angle of visibility α that crosstalks
cU, β
cU; α
lU, β
lU, α
cU, β
cUin minimum angles be
II, choose tested stereo display screen below under left eyeglass lens and right eye eyeglass to brightness angle of visibility α
lD, β
lDand the angle of visibility α that crosstalks
cD, β
cD; α
lD, β
lD, α
cD, β
cDin minimum angles be
The vertical angle of visibility of III, tested stereo display screen
for
2. a kind of stereo-picture display of visually angular measurement method for testing as claimed in claim 1, is characterized in that: in described step 4 and step 5, under left eyeglass lens and right eye eyeglass, the brightness angle of visibility method of measurement on left and right, the upper and lower four direction of tested stereo display screen is specially:
A, by between the tested stereo display screen of photochromism instrumentation amount and photochromism meter in the time of initial condition, the brightness LL of tested stereo display screen central point
0;
B, successively increase the horizontal view angle of photochromism meter with respect to tested stereo display screen to tested stereo display screen left, each angle that increases is for being not more than 5 °, each increase is passed through the tested stereo display screen of photochromism instrumentation amount center brightness behind horizontal view angle, until the tested stereo display screen center brightness that photochromism instrumentation obtains is less than LL
0/ 3, the whole LL of being more than or equal to that obtain by photochromism instrumentation
0in/3 tested stereo display screen center brightness, the corresponding horizontal view angle of minimum value is tested stereo display screen left brightness angle of visibility upwards;
C, tested stereo display screen and photochromism meter are restPosed, to the right-hand horizontal view angle of photochromism meter with respect to tested stereo display screen that successively increase of tested stereo display screen, each angle that increases is not more than 5 °, each increase is passed through the tested stereo display screen of photochromism instrumentation amount center brightness behind horizontal view angle, until the tested stereo display screen center brightness that photochromism instrumentation obtains is less than LL
0/ 3, the whole LL of being more than or equal to that obtain by photochromism instrumentation
0in/3 tested stereo display screen center brightness, the corresponding horizontal view angle of minimum value is the brightness angle of visibility in tested stereo display screen right;
D, tested stereo display screen and photochromism meter are restPosed, successively increase the vertical angle of view of photochromism meter with respect to tested stereo display screen to tested stereo display screen top, each angle that increases is not more than 5 °, each increase is passed through the tested stereo display screen of photochromism instrumentation amount center brightness behind vertical angle of view, until the tested stereo display screen center brightness that photochromism instrumentation obtains is less than LL
0/ 3, the whole LL of being more than or equal to that obtain by photochromism instrumentation
0in/3 tested stereo display screen center brightness, the corresponding vertical angle of view of minimum value is tested stereo display screen top brightness angle of visibility upwards;
E, tested stereo display screen and photochromism meter are restPosed, successively increase the vertical angle of view of photochromism meter with respect to tested stereo display screen to tested stereo display screen below, each angle that increases is not more than 5 °, each increase is passed through the tested stereo display screen of photochromism instrumentation amount center brightness behind horizontal view angle, until the tested stereo display screen center brightness that photochromism instrumentation obtains is less than LL
0/ 3, the whole LL of being more than or equal to that obtain by photochromism instrumentation
0in/3 tested stereo display screen center brightness, the corresponding vertical angle of view of minimum value is tested stereo display screen below brightness angle of visibility upwards.
3. a kind of stereo-picture display of visually angular measurement method for testing as claimed in claim 1, is characterized in that: in described step a～d, the measurement of screen center's point crossfire value completes by following method:
1. the black signal in the whole field that is y% by three-dimensional signal source to the left eye passage output gray level level of tested stereo display screen, the white signal in the whole field that is x% to right eye passage output gray level level, by the current photochromism meter of photochromism instrumentation amount with respect to the tested stereo display screen Strehl ratio L under level or the vertical angle of view of tested stereo display screen
0, B-W;
2. the black signal in the whole field that is y% by three-dimensional signal source to the left eye passage output gray level level of tested stereo display screen, the black signal in the whole field that is y% to right eye passage output gray level level, by the current photochromism meter of photochromism instrumentation amount with respect to the tested stereo display screen Strehl ratio L under level or the vertical angle of view of tested stereo display screen
0, B-B;
3. the white signal in the whole field that is x% by three-dimensional signal source to the left eye passage output gray level level of tested stereo display screen, the white signal in the whole field that right eye passage output gray level level is x%, by the current photochromism meter of photochromism instrumentation amount with respect to the tested stereo display screen Strehl ratio L under level or the vertical angle of view of tested stereo display screen
0, W-W;
4. the tested stereo display screen central point crossfire value XL under the level between current tested stereo display screen and photochromism meter or vertical angle of view
0for:
4. a kind of stereo-picture display of visually angular measurement method for testing as claimed in claim 1, is characterized in that: described m=20%.
5. a kind of stereo-picture display of visually angular measurement method for testing as described in claim 1 or 3, is characterized in that: described 0 < x≤100,0≤y < 100, and x > y.
6. a kind of stereo-picture display of visually angular measurement method for testing as claimed in claim 1, is characterized in that: in step 1, in tested stereo display screen center and photochromism meter, distance is in the heart the height of 3 times of tested stereo display screens.
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| CN103227933A (en) * | 2012-10-15 | 2013-07-31 | 苏州工业职业技术学院 | Stereo television image crosstalk testing device and testing method |
| CN103118271A (en) * | 2012-12-10 | 2013-05-22 | 苏州工业职业技术学院 | Testing device and testing method of three-dimensional television visible angles |
| CN104135656B (en) * | 2014-07-11 | 2016-05-04 | 华南理工大学 | A kind of detection method and device of mobile terminal bore hole stereoscopic display quality |
| CN104865049A (en) * | 2015-04-27 | 2015-08-26 | 江苏卡罗卡国际动漫城有限公司 | 3D glasses performance test device |
| CN105812787A (en) * | 2016-03-15 | 2016-07-27 | 重庆卓美华视光电有限公司 | Test method and device of naked eye 3D display device |
| CN112666731B (en) * | 2020-12-28 | 2024-02-06 | 惠州视维新技术有限公司 | Visual angle evaluation method of display screen |
| CN113008527A (en) * | 2021-03-05 | 2021-06-22 | Tcl华星光电技术有限公司 | Method for measuring visual angle of display panel |
| CN113639868B (en) * | 2021-08-13 | 2024-02-13 | 凌云光技术股份有限公司 | Detection equipment and method for measuring chromaticity of OLED display screen in real time |
| CN113834449B (en) * | 2021-11-25 | 2022-03-15 | 江苏省计量科学研究院(江苏省能源计量数据中心) | Visual angle detection method and device for medical display |
| CN114083568A (en) * | 2021-11-25 | 2022-02-25 | 江苏省计量科学研究院(江苏省能源计量数据中心) | Multi-axis self-positioning mechanical arm for automatic detection of visual angle of display |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101610425A (en) * | 2009-07-29 | 2009-12-23 | 清华大学 | A kind of method and apparatus of evaluating stereo image quality |
| CN101620816A (en) * | 2009-08-04 | 2010-01-06 | 华映光电股份有限公司 | Method and system for evaluating stereoscopic image display panel |
| CN102466562A (en) * | 2010-10-29 | 2012-05-23 | 乐金显示有限公司 | Method and apparatus for measuring optical of stereoscopic display device |
-
2012
- 2012-06-21 CN CN201210213298.5A patent/CN102752629B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101610425A (en) * | 2009-07-29 | 2009-12-23 | 清华大学 | A kind of method and apparatus of evaluating stereo image quality |
| CN101620816A (en) * | 2009-08-04 | 2010-01-06 | 华映光电股份有限公司 | Method and system for evaluating stereoscopic image display panel |
| CN102466562A (en) * | 2010-10-29 | 2012-05-23 | 乐金显示有限公司 | Method and apparatus for measuring optical of stereoscopic display device |
Non-Patent Citations (4)
| Title |
|---|
| 3D电视双眼串扰测试方法;吴冬燕;《电视技术》;20120525;第36卷(第6期);87-89 * |
| 丁志伟 等.立体图像串扰测试方法.《大众科技(2011年)》.2012,(第12期),21-23. * |
| 吴冬燕.3D电视双眼串扰测试方法.《电视技术》.2012,第36卷(第6期),87-89. |
| 吴蔚华 等.液晶显示器的可视角测量.《电视技术（2005年）》.2005,(第2期),95-96. * |
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