CN108088654A - Projector quality determining method and its electronic equipment - Google Patents
Projector quality determining method and its electronic equipment Download PDFInfo
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- CN108088654A CN108088654A CN201711287251.2A CN201711287251A CN108088654A CN 108088654 A CN108088654 A CN 108088654A CN 201711287251 A CN201711287251 A CN 201711287251A CN 108088654 A CN108088654 A CN 108088654A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012360 testing method Methods 0.000 claims abstract description 45
- 238000004590 computer program Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 11
- 238000004364 calculation method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012372 quality testing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3191—Testing thereof
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The invention discloses a kind of projector quality determining methods, comprise the following steps：(1) the default standard testing image of projector is controlled；(2) the standard testing image after the video camera shooting projector is controlled to obtain captured image；(3) captured image that the video camera obtains is received, compares color difference, luminance difference and the contrast difference between the captured image and standard testing image；(4) color difference, luminance difference and the contrast difference between the captured image and standard testing image are judged respectively whether beyond corresponding color preset range, brightness preset range and contrast preset range, if then exporting corresponding prompt message.The present invention can accurate judgement projecting apparatus projection quality, and export corresponding prompt message with remind in time related personnel carry out relevant treatment.The invention also discloses corresponding detection devices.
Description
Technical field
The present invention relates to the detection method and detection device of a kind of projecting apparatus more particularly to projector quality testing sides
Method and its electronic equipment.
Background technology
The classroom of school is modernized mostly using multimedia equipment, number of devices is more, including projecting apparatus, microphone, loud speaker
Deng.Wherein the projection quality of projecting apparatus can constantly decline, and influence teaching efficiency, therefore be badly in need of a kind of throwing that can detect projecting apparatus in time
Shadow quality, and the projector quality determining method and its electronic equipment of related personnel are reminded in time.
The content of the invention
The object of the present invention is to provide a kind of projector quality determining method and electronic equipments, can detect projecting apparatus and throw
The quality of shadow, and related prompting is carried out in time when projector quality declines.
Upper purposeful in order to realize, the invention discloses a kind of projector quality determining methods, comprise the following steps：
(1) the default standard testing image of projector is controlled；(2) video camera is controlled to shoot the mark after the projector
Quasi- test image is to obtain captured image；(3) captured image that the video camera obtains is received, compares the captured image
Color difference, luminance difference and contrast difference between standard testing image；(4) judge that the captured image and standard are surveyed
Whether the color difference as between is attempted beyond color preset range, if then exporting corresponding prompt message；Judge the bat
The luminance difference between image and standard testing image is taken the photograph whether beyond brightness preset range, if then exporting corresponding prompting letter
Breath；Whether the contrast difference between the captured image and standard testing image is judged beyond contrast preset range, if
Then export corresponding prompt message.
Compared with prior art, the present invention obtains image and the standard testing for comparing that projector comes out by video camera
Image, to judge whether the drop shadow effect of projecting apparatus is deteriorated, testing result is accurate, and when drop shadow effect is deteriorated, the output phase should
Prompt message related personnel to be reminded to carry out relevant treatment in time, be effectively guaranteed the drop shadow effect of projecting apparatus, reduce and throw
It the non-normal use time of shadow instrument and avoids use lack of standardization and projecting apparatus can be carried out maintenance management in time.
It is preferred that the step (3) specifically includes：Captured image is received, the captured image is converted into corresponding RGB
Three channel histogram, compare the captured image RGB three channel histograms and the standard testing image RGB triple channels it is straight
Square figure is to calculate the color difference；The Y passage average values of the captured image and standard testing image are calculated, according to the bat
Take the photograph luminance difference described in the Y passage mean value calculations of image and standard testing image；The captured image is converted into corresponding Y
Channel histogram and the contrast for calculating the captured image, the comparison according to the captured image and the standard testing image
Degree calculates the contrast difference.
It is preferred that the color preset range, brightness preset range and contrast preset range are divided at least two-stage, institute
It states step (4) and specifically judges whether the color difference, luminance difference and contrast difference exceed the color of arbitrary grade
Preset range, brightness preset range and contrast preset range, if then exporting the prompt message of corresponding grade.
It is preferred that the color preset range, brightness preset range and contrast preset range include the first order and the
Two level, the prompt message include first order prompt message corresponding with the first order and corresponding with the second level second
Grade prompt message, the first order prompt message are adjustment indoor lighting information, and the second level prompt message projects for cleaning
Instrument lens information.
More preferably, the color preset range, brightness preset range and contrast preset range respectively further comprise the third level,
The prompt message further includes third level prompt message corresponding with the third level, and the third level prompt message is replacement lamp
Steep information.Wherein, the drop shadow effect of projecting apparatus is bad is frequently due to inadequate bulb brightness, projecting apparatus light bulb eyeglass dust accumulation, throws
The reasons, especially light bulb such as shadow curtain is unholiness and indoor lighting is unreasonable, unique consumption of the light bulb as projector in projecting apparatus
Material, its brightness in use for some time can be quickly fallen to can not normal use.
It is preferred that when color difference, luminance difference or poor contrast between the captured image and standard testing image
Value starts timing and returns to repetition to hold beyond corresponding color preset range, brightness preset range or during contrast preset range
Row step (1)-(4) are up to color difference, luminance difference and the comparison between the captured image and standard testing image
Difference is spent without departing from corresponding color preset range, brightness preset range and contrast preset range, and arrived in timing time
During up to preset time, the prompt message or prompting that export lower level more change the bulb.
It is preferred that when color difference, luminance difference or poor contrast between the captured image and standard testing image
When value is beyond corresponding color preset range, brightness preset range or contrast preset range, when obtaining the use of projecting apparatus light bulb
Between and whether judge the projecting apparatus light bulb usage time beyond the first preset time, if then prompting more to change the bulb.
It is preferred that the step (1) performs the step (1) specifically, when the projecting apparatus starts.So as in time
It was found that whether projector effect is deteriorated.It is of course also possible to perform the step (1) with certain frequency, for example, daily or
Every a couple of days.
The invention also discloses a kind of electronic equipment, including video camera, one or more processors, memory and one
Or multiple programs, wherein one or more of programs are stored in the memory, and it is configured to by one or more
A processor performs, and described program includes performing the instruction of above-mentioned projector quality determining method.
The present invention obtains image and the standard testing image for comparing that projector comes out by video camera, to judge to project
Whether the drop shadow effect of instrument is deteriorated, and testing result is accurate, and when drop shadow effect is deteriorated, exports corresponding prompt message with timely
Related personnel is reminded to carry out relevant treatment, is effectively guaranteed the drop shadow effect of projecting apparatus, reduces the non-normal use of projecting apparatus
It time and avoids use lack of standardization and projecting apparatus can be carried out maintenance management in time.
The invention also discloses a kind of computer readable storage medium, including being combined simultaneously with the electronic equipment with memory
The computer program that cooperation video camera uses, the computer program can be executed by processor to be examined with above-mentioned projector quality
Survey method.
Description of the drawings
Fig. 1 is the flow chart of projector quality determining method of the present invention.
Fig. 2 is the partial process view of projector quality determining method described in another embodiment of the present invention.
Fig. 3 is the partial process view of projector quality determining method described in further embodiment of this invention.
Fig. 4 is the structure diagram of projector quality detection device of the present invention.
Specific embodiment
In order to describe the technical content, the structural feature, the achieved object and the effect of this invention in detail, below in conjunction with embodiment
And attached drawing is coordinated to be explained in detail.
With reference to figure 1, the invention discloses a kind of projector quality determining methods 100, comprise the following steps：(11) control
The default standard testing image of projector processed；(12) control video camera shooting projector after standard testing image with
Obtain captured image；(13) captured image that the video camera obtains is received, compares the captured image and standard testing
Color difference, luminance difference and contrast difference between image；(14) judge the captured image and standard testing image it
Between color difference whether beyond color preset range, if (15) then export corresponding prompt message, if otherwise terminating；(16)
Whether the luminance difference between the captured image and standard testing image is judged beyond brightness preset range, if (15) are then defeated
Go out corresponding prompt message, if otherwise terminating；(41) poor contrast between the captured image and standard testing image is judged
Whether value is beyond contrast preset range, if (15) then export corresponding prompt message, if otherwise terminating.
With reference to figure 2, the step (13) specifically includes：(30) receive captured image and perform step (31), (34) and
(36).(31) captured image is converted into corresponding RGB three channel histograms, (32) compare the RGB of the captured image
The RGB three channel histograms of three channel histogram and the standard testing image, to calculate the RGB triple channels of the captured image
Color difference between the RGB three channel histograms of histogram and the standard testing image performs step (14) and judges afterwards
Whether the color difference exceeds color preset range.(33) calculate the captured image and the Y passages of standard testing image are put down
The luminance difference of average, wherein specifically include the Y passage average values for calculating the captured image and standard testing image, (34) according to
According to luminance difference described in the captured image and the Y passage mean value calculations of standard testing image, step (16) is performed afterwards.
(36) captured image is converted into corresponding Y channel histograms and calculates the contrast of the captured image, (37) foundation
The captured image and the contrast of the standard testing image calculate the contrast difference, perform step (41) afterwards.Its
In, Y is the luminance signal of image, and Y passages average value is average gray, and Y channel histograms are grey level histogram.
The color preset range, brightness preset range and contrast preset range are divided into two-stage, wrapped respectively by preferably
Include the first color preset range, the second color preset range, the first brightness preset range, the second brightness preset range, first pair
Than degree preset range, the second contrast preset range, the prompt message includes pre- with the first color preset range, the first brightness
If scope and the corresponding first order prompt message of the first contrast preset range and with the second color preset range, the second brightness
Preset range and the corresponding second level prompt message of the second contrast preset range.The step (16) specifically includes：Judge institute
Color difference is stated whether beyond the first color preset range or the second color preset range, if otherwise terminating, if the color difference
Value then exports first order prompt message beyond the first color preset range, if the color difference exceeds the second color preset range
Then export second level prompt message.Judge whether the luminance difference exceeds the first brightness preset range or model is preset in the second brightness
It encloses, if otherwise terminating, if the luminance difference exports first order prompt message beyond the first brightness preset range, if described bright
Degree difference then exports second level prompt message beyond the second brightness preset range.Judge the contrast difference whether beyond first
Contrast preset range or the second contrast preset range, if otherwise terminating, if the contrast difference exceeds the first contrast
Preset range then exports first order prompt message, and second is exported if the contrast difference is beyond the second contrast preset range
Grade prompt message.The first order prompt message for adjustment indoor lighting information (such as：It closes room curtain, close projection screen
The light on periphery etc.), the second level prompt message is cleaning projecting apparatus lens information.
Better, the color preset range, brightness preset range and contrast preset range respectively further comprise the third level,
That is third color preset range, the 3rd brightness preset range and the 3rd contrast preset range, the prompt message further include with
The third color preset range, the 3rd brightness preset range and the corresponding third level prompting letter of the 3rd contrast preset range
Breath, the third level prompt message are the information that more changes the bulb.Certainly, the color preset range, brightness preset range and comparison
Level Four, Pyatyi number of degrees can also be included by spending preset range, be not limited in level-one, two level or three-level.
With reference to figure 3, in an alternative embodiment of the invention, after the step (15), judge that the captured image and standard are surveyed
Attempt whether color difference, luminance difference or contrast difference as between are preset beyond corresponding color preset range, brightness
Scope or contrast preset range (step 14,16,41), if then starting (17) timing and returning to perform the step (11),
Until color difference, luminance difference and the contrast difference between the captured image and standard testing image are without departing from correspondence
Color preset range, brightness preset range and contrast preset range, (18) timing time reach preset time when, (19)
Export the prompt message of lower level, if such as step (15) output first order prompt message, step (19) output second
Grade prompt message takes turns push away successively.Certainly, the step (19, can also directly be prompted more when timing time reaches preset time
It changes the bulb.
In still another embodiment of the process, after the step (15), when between the captured image and standard testing image
Color difference, luminance difference or contrast difference beyond corresponding color preset range, brightness preset range or contrast it is pre-
If during scope, obtain projecting apparatus light bulb usage time and judge the projecting apparatus light bulb usage time whether beyond first it is default when
Between, if then prompting more to change the bulb.
Based on above-described embodiment, when the projecting apparatus starts, the step (11) is performed.It is of course also possible to certain
Frequency performs the step (11), such as daily or every a couple of days.
It is flat including video camera 43 and control the invention also discloses a kind of projector quality testing 200 with reference to figure 4
Platform 42, there are one processor 421, memory 422 and multiple programs 423, plurality of programs 423 for the interior tool of the control platform 42
It is stored in the memory, and is configured to be performed by processor 421, described program 423 includes above-mentioned for performing
The instruction of projector quality determining method.Wherein, control platform 42 has network interface or WIFI interface, for passing through
Network receives the captured image that video camera 43 obtains.Control platform 42 can be intelligent mobile terminal (mobile phone, tablet computer, pen
Remember this computer), or PC machine or special control mechanism.Wherein, the step (15) passes through aobvious in control platform 42
Show the corresponding prompt message of screen display, can also be broadcast simultaneously by what the display screen in control platform 42 was connected with projecting apparatus
Equipment is put to prompt corresponding prompt message.Wherein, control platform 42 can network with console, realize remote real-time monitoring.
Wherein, a control platform 42 can monitor the drop shadow effect of several projecting apparatus simultaneously, can also only monitor one
The drop shadow effect of platform projecting apparatus.
It is above disclosed to be merely a preferred embodiment of the present invention, the right of the present invention cannot be limited with this certainly
Scope, therefore the equivalent variations made according to scope of the present invention patent, are still within the scope of the present invention.
Claims (10)
1. a kind of projector quality determining method, it is characterised in that：Comprise the following steps：
(1) the default standard testing image of projector is controlled；
(2) the standard testing image after the video camera shooting projector is controlled to obtain captured image；
(3) captured image that the video camera obtains is received, is compared between the captured image and standard testing image
Color difference, luminance difference and contrast difference；
(4) judging the color difference between the captured image and standard testing image, luminance difference, contrast difference respectively is
It is no to exceed corresponding color preset range, brightness preset range and contrast preset range, if then exporting corresponding prompting letter
Breath.
2. projector quality determining method as described in claim 1, it is characterised in that：The step (3) specifically includes：
Captured image is received, the captured image is converted into corresponding RGB three channel histograms, compares the RGB of the captured image
Three channel histogram and the RGB three channel histograms of the standard testing image are to calculate the color difference；Calculate the bat
The Y passage average values of image and standard testing image are taken the photograph, according to the captured image and the Y passage average values of standard testing image
Calculate the luminance difference；The captured image is converted into corresponding Y channel histograms and calculates pair of the captured image
Than degree, the contrast difference is calculated according to the captured image and the contrast of the standard testing image.
3. projector quality determining method as described in claim 1, it is characterised in that：By the color preset range,
Brightness preset range and contrast preset range are divided at least two-stage, and the step (4) specifically judges the color difference, brightness
The color preset range, brightness preset range and the contrast whether difference and contrast difference exceed arbitrary grade preset model
It encloses, if then exporting the prompt message of corresponding grade.
4. projector quality determining method as described in claim 1, it is characterised in that：It is the color preset range, bright
Spending preset range and contrast preset range includes the first order and the second level, and the prompt message includes and the first order pair
The first order prompt message and the second level corresponding with second level prompt message answered, the first order prompt message are adjustment
Indoor lighting information, the second level prompt message are cleaning projecting apparatus lens information.
5. projector quality determining method as claimed in claim 4, it is characterised in that：It is the color preset range, bright
Degree preset range and contrast preset range respectively further comprise the third level, and the prompt message further includes corresponding with the third level
Third level prompt message, the third level prompt message is more changes the bulb information.
6. projector quality determining method as described in claim 1, it is characterised in that：When the captured image and standard
Color difference, luminance difference or contrast difference between test image preset model beyond corresponding color preset range, brightness
Enclose or during contrast preset range, start timing and return repeat the step (1)-(4) until the captured image and
Color difference, luminance difference and contrast difference between standard testing image are without departing from corresponding color preset range, bright
Preset range and contrast preset range are spent, and when timing time reaches preset time, exports the prompt message of lower level
Or prompting more changes the bulb.
7. projector quality determining method as described in claim 1, it is characterised in that：When the captured image and standard
Color difference, luminance difference or contrast difference between test image preset model beyond corresponding color preset range, brightness
It encloses or during contrast preset range, obtains projecting apparatus light bulb usage time and simultaneously judge whether the projecting apparatus light bulb usage time surpasses
Go out the first preset time, if then prompting more to change the bulb.
8. projector quality determining method as described in claim 1, it is characterised in that：The step (1) specifically,
When the projecting apparatus starts, the step (1) is controlled.
9. a kind of electronic equipment, including：
Video camera；
One or more processors；
Memory；And
One or more programs, wherein one or more of programs are stored in the memory, and be configured to by
One or more processors perform, and described program includes performing the finger of the method as any one of claim 1-8
Order.
10. a kind of computer readable storage medium, including being combined with the electronic equipment with memory and video camera being coordinated to use
Computer program, it is characterised in that：The computer program can be executed by processor with such as any one of claim 1-8 institutes
The method stated.
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| CN201711287251.2A CN108088654A (en) | 2017-12-07 | 2017-12-07 | Projector quality determining method and its electronic equipment |
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| CN201711287251.2A CN108088654A (en) | 2017-12-07 | 2017-12-07 | Projector quality determining method and its electronic equipment |
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Cited By (14)
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| CN108848361A (en) * | 2018-07-13 | 2018-11-20 | 网易（杭州）网络有限公司 | For the method for interactive projector, medium, device and calculate equipment |
| CN109151417A (en) * | 2018-09-27 | 2019-01-04 | 杭州迈杰教育科技有限公司 | The detection system and method for multimedia equipment |
| CN109831658A (en) * | 2019-04-03 | 2019-05-31 | 贵安新区新特电动汽车工业有限公司 | Projected light tone adjusting method and projected light tone engagement positions |
| CN110031186A (en) * | 2019-05-17 | 2019-07-19 | 歌尔股份有限公司 | Projector ray machine test macro and method |
| CN110070824A (en) * | 2019-05-08 | 2019-07-30 | 万达文化旅游规划研究院有限公司 | LED ball face shows calibration method, the apparatus and system of screen color and brightness |
| CN110572642A (en) * | 2019-10-25 | 2019-12-13 | 深圳创维－Rgb电子有限公司 | Automatic test method of display device, display device and storage medium |
| CN110595738A (en) * | 2019-08-30 | 2019-12-20 | 歌尔股份有限公司 | Laser detection method, device, equipment and depth camera |
| CN110636286A (en) * | 2019-10-25 | 2019-12-31 | 深圳创维－Rgb电子有限公司 | Remote testing method of display equipment, terminal and storage medium |
| CN110823516A (en) * | 2019-09-27 | 2020-02-21 | 深圳市火乐科技发展有限公司 | Test method and related equipment |
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| CN113542733A (en) * | 2021-06-25 | 2021-10-22 | 苏州智瞳道和显示技术有限公司 | Method and system for adjusting and measuring definition of optical machine |
| CN114046882A (en) * | 2021-12-07 | 2022-02-15 | 亮风台（上海）信息科技有限公司 | A method and device for acquiring color test information of optical equipment |
| CN114615483A (en) * | 2020-12-03 | 2022-06-10 | 精工爱普生株式会社 | Adjustment method, measurement method, projection system, information processing apparatus, and recording medium |
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Application publication date: 20180529 |