CN103501436A - Reproduction ratio testing method and system - Google Patents
Reproduction ratio testing method and system Download PDFInfo
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- CN103501436A CN103501436A CN201310440154.8A CN201310440154A CN103501436A CN 103501436 A CN103501436 A CN 103501436A CN 201310440154 A CN201310440154 A CN 201310440154A CN 103501436 A CN103501436 A CN 103501436A
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Abstract
The invention discloses a reproduction ratio testing method and system. The reproduction ratio testing method includes the following steps that a test terminal sends an information source switching instruction to a display device to be tested, and/or sends a display ratio switching instruction supported by a current information source to the display device to be tested, and/or sends a video format switching instruction supported by the current information source to a signal generator; the signal generator sequentially inputs a plurality of picture signals in a current video format to the display device; a color analyzer acquires the brightness value of the display device in displaying pictures according to the picture signals, and sends the brightness value to the test terminal; the test terminal acquires the corresponding reproduction ratio of the display device under the current information source, display ratio and video format according to the received brightness value. According to the reproduction ratio testing method, the reproduction ratio of the display device is measured according to the brightness value, reproduction ratio testing efficiency is improved, and labor cost is lowered at the same time.
Description
Technical field
The present invention relates to the image measurement technical field, relate in particular to a kind of representation rate method of testing and system thereof.
Background technology
Television set is popularized huge numbers of families, and the representation rate is an important indicator of TV images test.The representation rate refers to the ratio of the image of the image programs that image programs that television screen reappears and TV station send.Television set just has different reproduction of image rates at various information source, different video form and different ratio modes, and the image that only under suitable representation rate, is shown to spectators just neither reveals the black surround not merciless parts of images that cuts out again.Whether the representation rate that detects a television set is up to standard, usually to expend the bit test engineer time of whole one day, utilize a kind of model that 22294(is the graphics video signal generator) etc. signal generator export various vision signals to television set, manually switch one by one again information source, video format and displaying ratio pattern, estimate and read the scale that shows image by human eye, thereby draw the representation rate.Due to subjective factor, sometimes occur that different people has different judgement conclusions, it is fully up to standard that the display screen of a television set will detect 10 times ability from research and development usually to volume production.
Summary of the invention
Main purpose of the present invention is to provide a kind of representation rate method of testing and system thereof, is intended to reach and improve representation rate testing efficiency by automatic switchover information source, displaying ratio and video format, to reduce human cost.
In order to achieve the above object, the present invention proposes a kind of representation rate method of testing, comprises the following steps:
Test terminal sends the information source switching command to display device to be tested; And/or send to display device to be tested the displaying ratio switching command that current information source is supported; And/or send to signal generator the video format switching command that current information source is supported;
The output image instruction that signal generator sends while according to described video format switching command or according to test terminal, sending described information source switching command or described displaying ratio switching command, input a plurality of picture signals under the current video form to display device successively;
After color analyzer receives the test instruction of sending test terminal, obtain display device and show the brightness value of image according to described picture signal, and described brightness value is sent to described test terminal;
Test terminal is according to the described brightness value that receives, to obtain display device corresponding representation rate when current described information source, displaying ratio and the video format.
Preferably, described color analyzer, after receiving the test instruction of sending test terminal, obtains display device and shows the brightness value of image according to described picture signal, and the step that described brightness value is sent to described test terminal is specifically comprised:
During picture signal that signal generator is from the first color to the display device input configuration, the brightness value Y of demonstration image when color analyzer obtains the picture signal that display device is the first color at input configuration
b;
During picture signal that signal generator is from the second color to the display device input configuration, the brightness value Y of demonstration image when color analyzer obtains the picture signal that display device is the second color at input configuration
w;
Signal generator is during to display device input test picture signal, and color analyzer obtains the brightness value Y of the demonstration image of display device when the input test picture signal
t.
Preferably, work as Y
wy
ty
bthe time, described representation rate Z calculates by following formula:
Wherein, Z
minfor the qualified representation rate of minimum corresponding to test pattern, K is coefficient;
Work as Y
t>=Y
wthe time, representation rate Z is greater than maximum qualified representation rate;
Work as Y
t≤ Y
bthe time, representation rate Z is less than minimum qualified representation rate.
Preferably, described color analyzer obtains display device shown brightness value comprises left hand edge median luminance value, right hand edge median luminance value, top edge median luminance value and the lower limb median luminance value of the display screen that obtains described display device according to described picture signal.
The present invention further also proposes a kind of representation rate test macro, comprising:
Test terminal, send the information source switching command for the display device to be tested; And/or send to display device to be tested the displaying ratio switching command that current information source is supported; And/or send to signal generator the video format switching command that current information source is supported;
Signal generator, the output image instruction of sending while being used for sending described information source switching command or described displaying ratio switching command according to described video format switching command or according to test terminal, input a plurality of picture signals under the current video form to display device successively;
Color analyzer, for after receiving the test instruction of sending test terminal, obtain display device and show the brightness value of image according to described picture signal, and described brightness value is sent to described test terminal;
Described test terminal, also for according to the described brightness value that receives, to obtain display device corresponding representation rate when current described information source, displaying ratio and the video format.
Preferably, described picture signal comprises: be configured to the first color picture signal, be configured to the picture signal of the second color and be configured to the test image signal that the first color adds the second color.
Preferably, described color analyzer comprises the first acquisition module, the second acquisition module and the 3rd acquisition module, wherein,
Described the first acquisition module, during for the picture signal that is the first color when signal generator to the display device input configuration, show the brightness value Y of image during picture signal that to obtain display device be the first color at input configuration
b;
Described the second acquisition module, during for the picture signal that is the second color when signal generator to the display device input configuration, show the brightness value Y of image during picture signal that to obtain display device be the second color at input configuration
w;
Described the 3rd acquisition module, for, obtaining display device and show the brightness value Y of image when the input test picture signal during to display device input test picture signal when signal generator
t.
Preferably, work as Y
wy
ty
bthe time, described representation rate Z calculates by following formula:
Wherein, Z
minfor the qualified representation rate of minimum corresponding to test pattern, K is coefficient;
Work as Y
t>=Y
wthe time, representation rate Z is greater than maximum qualified representation rate;
Work as Y
t≤ Y
bthe time, representation rate Z is less than minimum qualified representation rate.
Preferably, described color analyzer comprises four probes, and four described probes lay respectively in the middle of the left hand edge of display screen of described display device, in the middle of right hand edge, in the middle of top edge and in the middle of lower limb.
The representation rate method of testing that the present embodiment proposes, send the information source switching command by test terminal to display device to be tested, and/or send to display device to be tested the displaying ratio switching command that current information source is supported, and/or send to signal generator the video format switching command that current information source is supported, the output image instruction that signal generator sends while according to described video format switching command or according to test terminal, sending information source switching command or displaying ratio switching command, input a plurality of picture signals under the current video form to display device successively, after color analyzer receives the test instruction of sending test terminal, obtain display device and show the brightness value of image according to picture signal, and brightness value is sent to test terminal, test terminal is according to the brightness value received, to obtain display device in current information source, corresponding representation rate when displaying ratio and video format, reached the purpose of measuring display device representation rate by brightness value, thereby avoid manually going the reading displayed scale to obtain the representation rate of display device, saved human cost.Simultaneously, read brightness value and there is the high easily detection of precision with the method for calculating the representation rate, overcome the subjective consciousness that manually reads scale and the coarse problem of measurement of bringing.In addition, this representation rate method of testing, control by test terminal, reaches the purpose of display device automatic switchover information source and displaying ratio and control signal generator automatic switchover video format, greatly improved the testing efficiency of representation rate.
The accompanying drawing explanation
The schematic flow sheet of the preferred embodiment that Fig. 1 is representation rate method of testing of the present invention;
The schematic flow sheet that Fig. 2 is the step S30 shown in Fig. 1;
The schematic diagram of test pattern one embodiment that Fig. 3 is representation rate method of testing of the present invention;
The schematic diagram of display device demonstration image one embodiment that Fig. 4 is employing representation rate method of testing of the present invention;
The structural representation of the preferred embodiment that Fig. 5 is representation rate test macro of the present invention;
The structural representation that Fig. 6 is color analyzer in representation rate test macro of the present invention.
The realization of the object of the invention, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Below in conjunction with drawings and the specific embodiments, with regard to technical scheme of the present invention, be described further.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The present invention proposes a kind of representation rate method of testing.
With reference to Fig. 1, the schematic flow sheet of the preferred embodiment that Fig. 1 is representation rate method of testing of the present invention.
In this preferred embodiment, representation rate method of testing comprises the following steps:
Step S10, test terminal sends the information source switching command to display device to be tested; And/or send to display device to be tested the displaying ratio switching command that current information source is supported; And/or send to signal generator the video format switching command that current information source is supported;
Particularly, in the present embodiment, display device can be the equipment that has image display function with television set, computer etc.Test terminal sends the information source switching command by serial ports to display device.Test terminal is sent the Switch Video format order by serial ports to signal generator, and the control signal generator is exported corresponding video format and picture signal.When signal generator receives the Switch Video format order of test terminal, to display device, send corresponding picture signal.
Support plurality of information resources because of display device, simultaneously, display device is supported multiple displaying ratio, and as full frame, standard etc., in addition, display device is supported the various video form.Therefore, the representation rate of the display device of measurement is based on the representation rate under a certain information source, a certain displaying ratio and a certain video format.When information source, displaying ratio, these three variablees of video format have one to change, the result of representation rate is not identical.
Test terminal need all be switched all situations of three variablees to put in place.As information source has bis-kinds of A1, A2, the displaying ratio that each information source is supported all has two kinds of B1, B2, and the video format that each information source is supported all has tri-kinds of C1, C2, C3.Now, the combination of information source, displaying ratio and video format has following 12 kinds of situation: A1, B1, C1, A1, B1, C2, A1, B1, C3, A1, B2, C1, A1, B2, C2, A1, B2, C3, A2, B1, C1, A2, B1, C2, A2, B1, C3, A2, B2, C1, A2, B2, C2, A2, B2, C3.Display device and signal generator are controlled in test terminal, in each changeable three variablees one, also can switch two in three variablees at every turn, also can switch three variablees simultaneously, as long as all combinations that guarantee three variablees all switching put in place, thereby get the representation rate of the display device under all combinations of information source, displaying ratio and video format.
Step S20, the output image instruction that signal generator sends while according to described video format switching command or according to test terminal, sending information source switching command or displaying ratio switching command, input a plurality of picture signals under the current video form to display device successively;
Particularly, if display device switching information source, displaying ratio are controlled simultaneously during the control signal generator Switch Video form of test terminal in test terminal, signal generator according to the video format switching command received successively to a plurality of picture signals under display device input current video form.If display device switching information source and/or displaying ratio are controlled in test terminal, and video format is while remaining unchanged, the output image instruction of sending when test terminal sends information source switching command and/or displaying ratio switching command with the control signal generator successively to a plurality of picture signals under display device input current video form.If a kind of in display device switching information source or displaying ratio controlled in test terminal, simultaneously, during control signal generator Switch Video form, now, signal generator is inputted a plurality of picture signals under the current video form to display device successively according to the video format switching command received.
Particularly, in the present embodiment, picture signal comprises: be configured to the first color picture signal, be configured to the picture signal of the second color and be configured to the test image signal that the first color adds the second color.
Step S30, color analyzer, after receiving the test instruction of sending test terminal, obtains display device and shows the brightness value of image according to described picture signal, and described brightness value is sent to described test terminal;
In the present embodiment, color analyzer is transferred to test terminal by a plurality of brightness values by serial ports.During concrete enforcement, color analyzer can be a kind of model that CA210(is color analyzer) etc. color analyzer.
Step S40, test terminal is according to the described brightness value that receives, to obtain display device corresponding representation rate when current described information source, displaying ratio and the video format.
After obtaining a plurality of representation rates that all information sources, displaying ratio and video format are corresponding, test terminal generates representation rate form, and prints representation rate form.
Particularly, with reference to Fig. 2, step S30 specifically comprises:
Step S31, during picture signal that signal generator is from the first color to the display device input configuration, show the brightness value Y of image when color analyzer obtains the picture signal that display device is the first color at input configuration
b;
Step S32, during picture signal that signal generator is from the second color to the display device input configuration, show the brightness value Y of image when color analyzer obtains the picture signal that display device is the second color at input configuration
w;
Step S33, signal generator is during to display device input test picture signal, and color analyzer obtains display device and show the brightness value Y of image when the input test picture signal
t.
Test terminal control signal generator carries out three kinds of output switchings between picture signal.In the present embodiment, take the first color as black, the second color illustrates for example for white.With reference to Fig. 3, in a specific embodiment of test pattern, the length of test pattern is L1, and width is L2, and it is the rectangular image zone that L3, width are L4 that the middle part of test pattern has a length.The rectangular image area configurations is black, and the test pattern beyond the rectangular image zone is configured to white.The area that the rectangular image zone accounts for whole test pattern zone is the minimum qualified representation rate of test pattern.In principle, the brightness value Yt when the input test picture signal is larger, illustrates that representation rate Z is larger.
YPbPr(color difference components interface for example) 720P signal, 95% to take interior be black, the area that the rectangular image zone in the middle of accounts for whole test pattern zone is 95%, is white beyond being greater than 95%.(the minimum qualified representation rate of YPbPr720P signal is 95%, and maximum qualified representation rate is 97%).For example, if require the information source that the representation rate is 100%, VGA(Video Graphics Array), minimum qualified representation rate is 99.9%, now, test pattern frame white line is inner is black.
In the present embodiment, work as Y
wy
ty
bthe time, representation rate Z calculates by following formula:
Wherein, Z
minfor the qualified representation rate of minimum corresponding to test pattern, K is coefficient.K draws by Practical Calculation.Concrete K calculates by the following method: under a certain information source and displaying ratio, television set inputted to a kind of picture signal of video format, manually read representation rate Z, then according to known Y
t, Y
band Z
minthe above-mentioned formula of substitution (1) can be obtained COEFFICIENT K.That is to say, while testing for the first time, at first K need be calculated, then, test terminal, again according to the K tried to achieve, is calculated and is obtained at television set the representation rate Z under a certain information source, displaying ratio and video format by above-mentioned formula (1) in automatic testing process afterwards.
Work as Y
t>=Y
wthe time, representation rate Z is greater than maximum qualified representation rate.
Work as Y
t≤ Y
bthe time, representation rate Z is less than minimum qualified representation rate.
For the information source that requires the representation rate to be 100%, work as Y
ty
bthe time, representation rate Z is 100%; Work as Y
t≤ Y
bthe time, Z is defective for the representation rate.
Further, with reference to Fig. 4, described color analyzer obtains left hand edge median luminance value, right hand edge median luminance value, top edge median luminance value and the lower limb median luminance value that brightness value that display device shows image comprises the display screen that obtains described display device.
Particularly, in the present embodiment, four probes can be set in color analyzer, be installed on respectively C, D, E, the F place of Fig. 4.The representation rate of four positions of one-shot measurement display device.In other variant embodiment, a probe also can be set, successively the representation rate at the C of survey map 4, D, E, F place.
Be installed on the probe at C, D place for measuring horizontal representation rate, be installed on the probe at E, F place for measuring vertical representation rate.When the horizontal representation rate of measuring the C place is greater than the horizontal representation rate at D place, illustrates that the image of display device actual displayed takes over, otherwise take back.When the vertical representation rate of measuring the E place is greater than the vertical representation rate at F place, the image of display device actual displayed is described on the upper side, otherwise on the lower side.Now, correspondingly can send the image shift instruction to display device by test terminal, display device be shown to the position of image is regulated.
The representation rate method of testing that the present embodiment proposes, send the information source switching command by test terminal to display device to be tested, and/or send to display device to be tested the displaying ratio switching command that current information source is supported, and/or send to signal generator the video format switching command that current information source is supported, the output image instruction that signal generator sends while according to described video format switching command or according to test terminal, sending information source switching command or displaying ratio switching command, input a plurality of picture signals under the current video form to display device successively, color analyzer is after receiving the test instruction of sending test terminal, obtain display device and show the brightness value of image according to picture signal, and brightness value is sent to test terminal, test terminal is according to the brightness value received, to obtain display device in current information source, corresponding representation rate when displaying ratio and video format, reached the purpose of measuring display device representation rate by brightness value, thereby avoid manually going the reading displayed scale to obtain the representation rate of display device, saved human cost.Simultaneously, read brightness value and there is the high easily detection of precision with the method for calculating the representation rate, overcome the subjective consciousness that manually reads scale and the coarse problem of measurement of bringing.In addition, this representation rate method of testing, control by test terminal, reaches the purpose of display device automatic switchover information source and displaying ratio and control signal generator automatic switchover video format, greatly improved the testing efficiency of representation rate.
The present invention further proposes a kind of representation rate test macro.
With reference to Fig. 5, the structural representation of the preferred embodiment that Fig. 5 is representation rate test macro of the present invention.
In this preferred embodiment, representation rate test macro comprises:
Particularly, in the present embodiment, display device 40 can be the equipment that has image display function with television set, computer etc.Test terminal 10 sends the information source switching command by serial ports to display device 40.
Because display device 40 is supported plurality of information resources, simultaneously, display device 40 is supported multiple displaying ratio, and as full frame, standard etc., in addition, display device 40 is supported the various video forms.Therefore, the representation rate of the display device 40 of measurement is based on the representation rate under a certain information source, a certain displaying ratio and a certain video format.When information source, displaying ratio, these three variablees of video format have one to change, the result of representation rate is not identical.
Particularly, if display device switching information source and displaying ratio are controlled in test terminal, simultaneously during the control signal generator Switch Video form of test terminal, signal generator according to the video format switching command received successively to a plurality of picture signals under display device input current video form.If display device switching information source and/or displaying ratio are controlled in test terminal, and video format is while remaining unchanged, the output image instruction of sending when test terminal sends information source switching command and/or displaying ratio switching command with the control signal generator successively to a plurality of picture signals under display device input current video form.If a kind of in display device switching information source or displaying ratio controlled in test terminal, simultaneously, during control signal generator Switch Video form, now, signal generator is inputted a plurality of picture signals under the current video form to display device successively according to the video format switching command received.
In the present embodiment, color analyzer 30 is transferred to test terminal 10 by a plurality of brightness values by serial ports.During concrete enforcement, color analyzer 30 can be the color analyzers such as CA210.Test terminal 10 is sent the Switch Video format order by serial ports to signal generator 20, corresponding video format and the picture signal of control signal generator 20 output.When signal generator 20 receives the Switch Video format order of test terminal 10, to display device 40, send corresponding video format and picture signal.
In the present embodiment, take the first color as black, the second color illustrates for example for white.The rectangular image area configurations is black, and the test pattern beyond the rectangular image zone is configured to white.The area that the rectangular image zone accounts for whole test pattern zone is the minimum qualified representation rate of test pattern.In principle, the brightness value Yt when the input test picture signal is larger, illustrates that representation rate Z is larger.
YPbPr720P signal for example, 95% to take interior be black, the area that the rectangular image zone in the middle of accounts for whole test pattern zone is 95%, is white beyond being greater than 95%.(the minimum qualified representation rate of YPbPr720P signal is 95%, and maximum qualified representation rate is 97%).If require the information source that the representation rate is 100%, VGA for example, minimum qualified representation rate is 99.9%, now, test pattern is that to be that white line is inner be black to frame.
Particularly, with reference to Fig. 6, color analyzer 30 comprises the first acquisition module 31, the second acquisition module 32 and the 3rd acquisition module 33, wherein,
The first acquisition module 31, during for the picture signal that is the first color when signal generator 20 to display device 40 input configurations, show the brightness value Yb of image during picture signal that to obtain display device 40 be the first color at input configuration;
The second acquisition module 32, during for the picture signal that is the second color when signal generator 20 to display device 40 input configurations, show the brightness value Y of image during picture signal that to obtain display device 40 be the second color at input configuration
w;
The 3rd acquisition module 33, for, obtaining display device 40 and show the brightness value Y of image when the input test picture signal during to display device 40 input test picture signal when signal generator 20
t.
In the present embodiment, work as Y
wy
ty
bthe time, representation rate Z calculates by following formula:
Wherein, Z
minfor the qualified representation rate of minimum corresponding to test pattern, K is coefficient.K draws by Practical Calculation.Concrete K calculates by the following method: under a certain information source and displaying ratio, television set inputted to a kind of picture signal of video format, manually read representation rate Z, then according to known Y
t, Y
band Z
minthe above-mentioned formula of substitution (1) can be obtained COEFFICIENT K.That is to say, while testing for the first time, at first K need be calculated, then, test terminal, again according to the K tried to achieve, is calculated and is obtained at television set the representation rate Z under a certain information source, displaying ratio and video format by above-mentioned formula (1) in automatic testing process afterwards.
Work as Y
t>=Y
wthe time, representation rate Z is greater than maximum qualified representation rate.
Work as Y
t≤ Y
bthe time, representation rate Z is less than minimum qualified representation rate.
For the information source that requires the representation rate to be 100%, work as Y
ty
bthe time, representation rate Z is 100%; Work as Y
t≤ Y
bthe time, Z is defective for the representation rate.
In the present embodiment, shown in Fig. 4 and Fig. 5, color analyzer 30 comprises four probes 34, the 34 employing side's pyramidal shape of popping one's head in, and four probes 34 lay respectively in the middle of the left hand edge of display screen of display device 40, in the middle of right hand edge, in the middle of top edge and in the middle of lower limb.In the present embodiment, four probes 34 are set and can realize 40 4 locational representation rates of one-shot measurement display device.In other variant embodiment, probe 34, the representation rate at the C of survey map 4, D, E, F place successively also can be set.
Be installed on the probe 34 at C, D place for measuring horizontal representation rate, be installed on the probe 34 at E, F place for measuring vertical representation rate.When the horizontal representation rate of measuring the C place is greater than the horizontal representation rate at D place, illustrates that the image of display device 40 actual displayed takes over, otherwise take back.When the vertical representation rate of measuring the E place is greater than the vertical representation rate at F place, the image of display device 40 actual displayed is described on the upper side, otherwise on the lower side.Now, can send the image shift instruction to display device 40 by test terminal 10, display device 40 is shown to the position of image is regulated.
The representation rate test macro that the present embodiment proposes, send the information source switching command by test terminal 10 for the display device 40 to be tested, and/or send to display device to be tested 40 the displaying ratio switching command that current information source is supported, and/or send to signal generator 20 the video format switching command that current information source is supported, a plurality of picture signals that signal generator 20 is inputted under the current video forms to display device 40 successively, color analyzer 30 obtains display device 40 brightness value shown according to picture signal, and brightness value is sent to test terminal 10, test terminal 10 is according to the brightness value received, to obtain display device 40 in current information source, corresponding representation rate when displaying ratio and video format, reached the purpose of measuring the representation rate of display device 40 by brightness value, because avoiding manually going the reading displayed scale to obtain the representation rate of display device 40, thereby saved human cost.Simultaneously, read brightness value high with the method precision of calculating the representation rate, overcome people's subjective consciousness and the coarse problem of measurement brought.In addition, this representation rate test macro, control by test terminal 10, reaches display device 40 automatic switchover information source and displaying ratios, and the purpose of control signal generator 20 automatic switchover video formats, greatly improved the measurement efficiency of representation rate.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure transformation that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (10)
1. a representation rate method of testing, is characterized in that, comprises the following steps:
Test terminal sends the information source switching command to display device to be tested; And/or send to display device to be tested the displaying ratio switching command that current information source is supported; And/or send to signal generator the video format switching command that current information source is supported;
The output image instruction that signal generator sends while according to described video format switching command or according to test terminal, sending described information source switching command or described displaying ratio switching command, input a plurality of picture signals under the current video form to display device successively;
Color analyzer, after receiving the test instruction of sending test terminal, obtains display device and shows the brightness value of image according to described picture signal, and described brightness value is sent to described test terminal;
Test terminal is according to the described brightness value that receives, to obtain display device corresponding representation rate when current described information source, displaying ratio and the video format.
2. representation rate method of testing as claimed in claim 1, is characterized in that, described picture signal comprises: be configured to the first color picture signal, be configured to the picture signal of the second color and be configured to the test image signal that the first color adds the second color.
3. representation rate method of testing as claimed in claim 2, it is characterized in that, described color analyzer is after receiving the test instruction of sending test terminal, obtain display device and show the brightness value of image according to described picture signal, and the step that described brightness value is sent to described test terminal is specifically comprised:
During picture signal that signal generator is from the first color to the display device input configuration, the brightness value Y of demonstration image when color analyzer obtains the picture signal that display device is the first color at input configuration
b;
During picture signal that signal generator is from the second color to the display device input configuration, the brightness value Y of demonstration image when color analyzer obtains the picture signal that display device is the second color at input configuration
w;
Signal generator is during to display device input test picture signal, and color analyzer obtains the brightness value Y of the demonstration image of display device when the input test picture signal
t.
4. representation rate method of testing as claimed in claim 3, is characterized in that, works as Y
wy
ty
bthe time, described representation rate Z calculates by following formula:
Wherein, Z
minfor the qualified representation rate of minimum corresponding to test pattern, K is coefficient;
Work as Y
t>=Y
wthe time, representation rate Z is greater than maximum qualified representation rate;
Work as Y
t≤ Y
bthe time, representation rate Z is less than minimum qualified representation rate.
5. representation rate method of testing as described as any one in claim 1 to 4, it is characterized in that, the brightness value that described color analyzer obtains display device shown image according to described picture signal comprises left hand edge median luminance value, right hand edge median luminance value, top edge median luminance value and the lower limb median luminance value of the display screen that obtains described display device.
6. a representation rate test macro, is characterized in that, comprising:
Test terminal, send the information source switching command for the display device to be tested; And/or send to display device to be tested the displaying ratio switching command that current information source is supported; And/or send to signal generator the video format switching command that current information source is supported;
Signal generator, the output image instruction of sending while being used for sending described information source switching command or described displaying ratio switching command according to described video format switching command or according to test terminal, input a plurality of picture signals under the current video form to display device successively;
Color analyzer, for after receiving the test instruction of sending test terminal, obtain display device and show the brightness value of image according to described picture signal, and described brightness value is sent to described test terminal;
Described test terminal, also for according to the described brightness value that receives, to obtain display device corresponding representation rate when current described information source, displaying ratio and the video format.
7. representation rate test macro as claimed in claim 6, is characterized in that, described picture signal comprises: be configured to the first color picture signal, be configured to the picture signal of the second color and be configured to the test image signal that the first color adds the second color.
8. representation rate test macro as claimed in claim 7, is characterized in that, described color analyzer comprises the first acquisition module, the second acquisition module and the 3rd acquisition module, wherein,
Described the first acquisition module, during for the picture signal that is the first color when signal generator to the display device input configuration, show the brightness value Y of image during picture signal that to obtain display device be the first color at input configuration
b;
Described the second acquisition module, during for the picture signal that is the second color when signal generator to the display device input configuration, show the brightness value Y of image during picture signal that to obtain display device be the second color at input configuration
w;
Described the 3rd acquisition module, for, obtaining display device and show the brightness value Y of image when the input test picture signal during to display device input test picture signal when signal generator
t.
9. representation rate test macro as claimed in claim 8, is characterized in that, works as Y
wy
ty
bthe time, described representation rate Z calculates by following formula:
Wherein, Z
minfor the qualified representation rate of minimum corresponding to test pattern, K is coefficient;
Work as Y
t>=Y
wthe time, representation rate Z is greater than maximum qualified representation rate;
Work as Y
t≤ Y
bthe time, representation rate Z is less than minimum qualified representation rate.
10. representation rate test macro as described as any one in claim 6 to 9, it is characterized in that, described color analyzer comprises four probes, and four described probes lay respectively in the middle of the left hand edge of display screen of described display device, in the middle of right hand edge, in the middle of top edge and in the middle of lower limb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310440154.8A CN103501436B (en) | 2013-09-24 | 2013-09-24 | Reproduction ratio method of testing and system thereof |
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| CN109218715A (en) * | 2018-10-18 | 2019-01-15 | 深圳Tcl新技术有限公司 | Automatic adjusting method, system and the storage medium of image |
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| CN112822485A (en) * | 2019-11-18 | 2021-05-18 | 青岛海尔多媒体有限公司 | Reproduction rate debugging method and device and display equipment |
| CN113613037A (en) * | 2021-07-09 | 2021-11-05 | 深圳市捷视飞通科技股份有限公司 | Video processing method, system and device |
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