CN104935850A - Self-adaptive projector based on image analysis - Google Patents
Self-adaptive projector based on image analysis Download PDFInfo
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- CN104935850A CN104935850A CN201510353710.7A CN201510353710A CN104935850A CN 104935850 A CN104935850 A CN 104935850A CN 201510353710 A CN201510353710 A CN 201510353710A CN 104935850 A CN104935850 A CN 104935850A
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Abstract
The invention discloses a self-adaptive projector based on image analysis. The self-adaptive projector comprises a camera, a horizontal adjusting motor, a vertical adjusting motor, a brightness adjusting module and a control module, wherein the control module is respectively and electrically connected with the camera, the horizontal adjusting motor, the vertical adjusting motor and the brightness adjusting module; the camera is used for shooting a projection picture of the projector; the horizontal adjusting motor and the vertical adjusting motor are used for adjusting a horizontal projection angle and a vertical projection angle of the projector; the brightness adjusting module is used for adjusting the projection brightness of the projector; the control module is used for controlling the working of each of the horizontal adjusting motor, the vertical adjusting motor and the brightness adjusting module according to the received projection picture image. The projector disclosed by the invention is simple in structure, convenient for use, capable of automatically adjusting the picture and guaranteeing the optimal angle of the picture, and capable of automatically adjusting the brightness so that the comfort level of human eyes can reach the maximum.
Description
Technical field
The present invention relates to projection field, particularly relate to a kind of self adaptation projecting apparatus based on graphical analysis.
Background technology
Projecting apparatus, under taking in the policy of national promote domestic demands and the people background constantly promoted, the enforcement of Rural Culture ethnic minority regions has promoted the quick growth of China's Projector Market further.According to statistics, within 2010, China's Projector Market shipment amount scale reaches 1,280,000, compares 2009 and increases by 43.6%.Think, within 2011, China's Projector Market will keep quick growth, and annual shipment amount will reach 1,670,000, year rate of growth to be about projecting apparatus be 30%.The five-year, the compound growth rate of China's Projector Market will reach 17.1%.
China projector's product consumption market mainly concentrates on the large-and-medium size cities such as the more flourishing North China of economy, East China, south China.Education, commercial affairs, government, home entertaining are the four large main consumer groups supporting Chinese projector industry.Make a general survey of China's Projector Market.No matter from the quantity of product, quality or kind aspect, all reach certain maturity, the popularization and application of product makes projector change to mass product from comparatively professional display device in the psychological positioning of user, the marketing scale of industry constantly expands, 2010, China's Projector Market sales volume is 1,100,000, compares 2009 and increases by 37.5%.From this 10 years China's Projector Market developments, China's Projector Market scale increases by 18 times, and its average growth rate per annum is 39.14%, and industry is in high-speed development period.
From the development form in industry future, education is still industry future development pillar field.According to statistics, institute of total kindergarten 12.91 ten thousand, the whole nation in 2010, institute of primary school 39.42 ten thousand, general high school 7.90 ten thousand institute, institute of common medium universities and colleges 3047, institute of higher education school 1778, be equipped with a projector by each classroom to calculate, according to related data display China only education sector market capacity just reach more than 1,100 ten thousand, if calculated according to projection occupation rate, projector can account for about 14%-28% (not comprising market maintenance), and the real sales volume of education market in 2010 is less than 500,000.
Secondly, the development in commercial projection market is also the key strength of left and right projector market development.Although China's commercial affairs projection market, in rapid expansion, is estimated according to relevant survey institute, in future, medium-sized and small enterprises quantity will keep the growth rate of 7%-8%, and within 2012, medium-sized and small enterprises sum will reach 5,000 ten thousand, industry development Bright Prospect.In addition, with regard to domestic at present, wealthy family's quantity of assets more than 1,000,000 can reach more than 200 ten thousand, and some elite, white collar are comparatively large for the demand of the quality of life, amusement equipment, and following household application market has a high potential.
Existing projecting apparatus generally all needs people manually to adjust projection angle and projection brightness, very inconvenient.
Summary of the invention
Technical problem to be solved by this invention is for defect involved in background technology, provides a kind of self adaptation projecting apparatus based on graphical analysis.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
Based on a self adaptation projecting apparatus for graphical analysis, comprise camera, Level tune motor, vertical adjusting motor, luminance adjustment module and control module;
Described control module is electrically connected with camera, Level tune motor, vertical adjusting motor, luminance adjustment module respectively;
The projected picture image transfer that photographs for taking the projected picture of projecting apparatus, and is given described control module by described camera;
Described Level tune motor is for adjusting the floor projection angle of projecting apparatus;
Described vertical adjusting motor is for regulating the vertical projection angle of projecting apparatus;
Described brightness regulation mould is for regulating the projection brightness of projecting apparatus;
Described control module is used for according to the projected picture image control Level tune motor received, vertical adjusting motor, luminance adjustment module work.
As a kind of further prioritization scheme of self adaptation projecting apparatus based on graphical analysis of the present invention, the processor of described control module adopts ARM series monolithic.
As a kind of further prioritization scheme of self adaptation projecting apparatus based on graphical analysis of the present invention, the processor of described control module adopts SAA7750 single-chip microcomputer.
As a kind of further prioritization scheme of self adaptation projecting apparatus based on graphical analysis of the present invention, described camera adopts pinhole cameras.
As a kind of further prioritization scheme of self adaptation projecting apparatus based on graphical analysis of the present invention, the model of described pinhole cameras is SN-319W2.
In the present invention, control module regulates projection angle and projection brightness automatically, and wherein, the concrete steps of adjustment projection angle are as follows:
Step 1), the projected picture of camera shooting projecting apparatus, and give described control module by the projected picture image transfer that photographs;
Step 2), control module extracts view field from projected picture;
Step 3), the upper edge lengths in compared projections region and lower edge lengths;
Step 3.1), if the upper edge lengths of view field is greater than its lower edge lengths, then controls vertical adjusting motor and the projection angle of projecting apparatus is turned down, until the upper edge lengths of view field equals its lower edge lengths or vertical adjusting motor arrives minimum adjusting position;
Step 3.2), if the upper edge lengths of view field is less than its lower edge lengths, then controls vertical adjusting motor and the projection angle of projecting apparatus is heightened, until the upper edge lengths of view field equals its lower edge lengths or vertical adjusting motor arrives the highest adjusting position;
Step 4), the left side length in compared projections region and the right length;
Step 4.1), if the left side length of view field is greater than length on the right of it, then level of control regulates motor to be adjusted by the projection angle of projecting apparatus to the right, until the left side length of view field equals length or vertical adjusting motor on the right of it arrive the rightest adjusting position;
Step 4.2), if the left side length of view field is less than length on the right of it, then level of control regulates motor to be adjusted by the projection angle of projecting apparatus left, until the left side length of view field equals length or vertical adjusting motor on the right of it arrive the most left adjusting position.
The concrete steps of adjustment projection brightness are as follows:
Step 1), the projected picture of camera shooting projecting apparatus, and give described control module by the projected picture image transfer that photographs;
Step 2), control module extracts view field and non-view field from projected picture;
Step 3), calculates the average brightness value of view field and the average brightness value of non-view field respectively;
Step 4), the average brightness value of view field is poor divided by the average brightness value of non-view field, obtain its contrast;
Step 5), compares the contrast in projected picture image between view field and non-view field and the first threshold preset;
Step 5.1), if the contrast in projected picture image between view field and non-view field is less than the first threshold preset, then control the projection brightness that luminance adjustment module tunes up projecting apparatus, until the projection brightness that the contrast in projected picture image between view field and non-view field equals default first threshold or projecting apparatus reaches maximum;
Step 5.2), if the contrast in projected picture image between view field and non-view field is greater than the first threshold preset, then control the projection brightness that luminance adjustment module turns projecting apparatus down, until the projection brightness that the contrast in projected picture image between view field and non-view field equals default first threshold or projecting apparatus reaches minimum value.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1. structure is simple, easy to use;
2. automatically can regulate picture, guarantee that the angle of picture is optimum;
3. can automatic regulating lightness, make the comfortableness of human eye reach maximum.
Accompanying drawing explanation
Fig. 1 is module diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
As shown in Figure 1, the invention discloses a kind of self adaptation projecting apparatus based on graphical analysis, comprise camera, Level tune motor, vertical adjusting motor, luminance adjustment module and control module;
Described control module is electrically connected with camera, Level tune motor, vertical adjusting motor, luminance adjustment module respectively;
The projected picture image transfer that photographs for taking the projected picture of projecting apparatus, and is given described control module by described camera;
Described Level tune motor is for adjusting the floor projection angle of projecting apparatus;
Described vertical adjusting motor is for regulating the vertical projection angle of projecting apparatus;
Described brightness regulation mould is for regulating the projection brightness of projecting apparatus;
Described control module is used for according to the projected picture image control Level tune motor received, vertical adjusting motor, luminance adjustment module work.
As a kind of further prioritization scheme of self adaptation projecting apparatus based on graphical analysis of the present invention, the processor of described control module adopts ARM series monolithic.
As a kind of further prioritization scheme of self adaptation projecting apparatus based on graphical analysis of the present invention, the processor of described control module adopts SAA7750 single-chip microcomputer.
As a kind of further prioritization scheme of self adaptation projecting apparatus based on graphical analysis of the present invention, described camera adopts pinhole cameras.
As a kind of further prioritization scheme of self adaptation projecting apparatus based on graphical analysis of the present invention, the model of described pinhole cameras is SN-319W2.
In the present invention, control module regulates projection angle and projection brightness automatically, and wherein, the concrete steps of adjustment projection angle are as follows:
Step 1), the projected picture of camera shooting projecting apparatus, and give described control module by the projected picture image transfer that photographs;
Step 2), control module extracts view field from projected picture;
Step 3), the upper edge lengths in compared projections region and lower edge lengths;
Step 3.1), if the upper edge lengths of view field is greater than its lower edge lengths, then controls vertical adjusting motor and the projection angle of projecting apparatus is turned down, until the upper edge lengths of view field equals its lower edge lengths or vertical adjusting motor arrives minimum adjusting position;
Step 3.2), if the upper edge lengths of view field is less than its lower edge lengths, then controls vertical adjusting motor and the projection angle of projecting apparatus is heightened, until the upper edge lengths of view field equals its lower edge lengths or vertical adjusting motor arrives the highest adjusting position;
Step 4), the left side length in compared projections region and the right length;
Step 4.1), if the left side length of view field is greater than length on the right of it, then level of control regulates motor to be adjusted by the projection angle of projecting apparatus to the right, until the left side length of view field equals length or vertical adjusting motor on the right of it arrive the rightest adjusting position;
Step 4.2), if the left side length of view field is less than length on the right of it, then level of control regulates motor to be adjusted by the projection angle of projecting apparatus left, until the left side length of view field equals length or vertical adjusting motor on the right of it arrive the most left adjusting position.
The concrete steps of adjustment projection brightness are as follows:
Step 1), the projected picture of camera shooting projecting apparatus, and give described control module by the projected picture image transfer that photographs;
Step 2), control module extracts view field and non-view field from projected picture;
Step 3), calculates the average brightness value of view field and the average brightness value of non-view field respectively;
Step 4), the average brightness value of view field is poor divided by the average brightness value of non-view field, obtain its contrast;
Step 5), compares the contrast in projected picture image between view field and non-view field and the first threshold preset;
Step 5.1), if the contrast in projected picture image between view field and non-view field is less than the first threshold preset, then control the projection brightness that luminance adjustment module tunes up projecting apparatus, until the projection brightness that the contrast in projected picture image between view field and non-view field equals default first threshold or projecting apparatus reaches maximum;
Step 5.2), if the contrast in projected picture image between view field and non-view field is greater than the first threshold preset, then control the projection brightness that luminance adjustment module turns projecting apparatus down, until the projection brightness that the contrast in projected picture image between view field and non-view field equals default first threshold or projecting apparatus reaches minimum value.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. based on a self adaptation projecting apparatus for graphical analysis, it is characterized in that, comprise camera, Level tune motor, vertical adjusting motor, luminance adjustment module and control module;
Described control module is electrically connected with camera, Level tune motor, vertical adjusting motor, luminance adjustment module respectively;
The projected picture image transfer that photographs for taking the projected picture of projecting apparatus, and is given described control module by described camera;
Described Level tune motor is for adjusting the floor projection angle of projecting apparatus;
Described vertical adjusting motor is for regulating the vertical projection angle of projecting apparatus;
Described brightness regulation mould is for regulating the projection brightness of projecting apparatus;
Described control module is used for according to the projected picture image control Level tune motor received, vertical adjusting motor, luminance adjustment module work.
2. the self adaptation projecting apparatus based on graphical analysis according to claim 1, is characterized in that, the processor of described control module adopts ARM series monolithic.
3. the self adaptation projecting apparatus based on graphical analysis according to claim 2, is characterized in that, the processor of described control module adopts SAA7750 single-chip microcomputer.
4. the self adaptation projecting apparatus based on graphical analysis according to claim 1, is characterized in that, described camera adopts pinhole cameras.
5. the self adaptation projecting apparatus based on graphical analysis according to claim 4, is characterized in that, the model of described pinhole cameras is SN-319W2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510353710.7A CN104935850A (en) | 2015-06-25 | 2015-06-25 | Self-adaptive projector based on image analysis |
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| CN201510353710.7A CN104935850A (en) | 2015-06-25 | 2015-06-25 | Self-adaptive projector based on image analysis |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107239134A (en) * | 2017-06-06 | 2017-10-10 | 广东小天才科技有限公司 | Method and device for regulating and controlling cursor lamp |
| CN107613281A (en) * | 2017-09-29 | 2018-01-19 | 无锡昊瑜节能环保设备有限公司 | A kind of projecting apparatus adaptively adjusted |
| CN107613282A (en) * | 2017-09-29 | 2018-01-19 | 无锡昊瑜节能环保设备有限公司 | The projection angle method of adjustment of the projecting apparatus adaptively adjusted |
| CN107635121A (en) * | 2017-09-29 | 2018-01-26 | 无锡昊瑜节能环保设备有限公司 | The projection brightness adjusting method of the projecting apparatus adaptively adjusted |
| CN109688389A (en) * | 2018-11-23 | 2019-04-26 | 苏州佳世达电通有限公司 | Imaging device and parameter regulation means |
| CN109688390A (en) * | 2018-12-12 | 2019-04-26 | 中国科学院深圳先进技术研究院 | A kind of projected picture auto-correction method, system |
| CN110996086A (en) * | 2019-12-26 | 2020-04-10 | 成都极米科技股份有限公司 | Projection brightness adjusting method and related device |
| CN113485067A (en) * | 2021-09-08 | 2021-10-08 | 深圳市火乐科技发展有限公司 | Brightness adjusting method and device, projection equipment and computer readable storage medium |
| CN115388808A (en) * | 2022-08-29 | 2022-11-25 | 易思维（杭州）科技有限公司 | DLP projector parameter self-adjusting method for structured light sensor calibration |
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| CN103179363A (en) * | 2011-12-23 | 2013-06-26 | 技嘉科技股份有限公司 | Projector and image calibration method for same |
| CN103338342A (en) * | 2013-03-19 | 2013-10-02 | 卿婷 | Self-adaption projector |
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Patent Citations (4)
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107239134A (en) * | 2017-06-06 | 2017-10-10 | 广东小天才科技有限公司 | Method and device for regulating and controlling cursor lamp |
| CN107613281A (en) * | 2017-09-29 | 2018-01-19 | 无锡昊瑜节能环保设备有限公司 | A kind of projecting apparatus adaptively adjusted |
| CN107613282A (en) * | 2017-09-29 | 2018-01-19 | 无锡昊瑜节能环保设备有限公司 | The projection angle method of adjustment of the projecting apparatus adaptively adjusted |
| CN107635121A (en) * | 2017-09-29 | 2018-01-26 | 无锡昊瑜节能环保设备有限公司 | The projection brightness adjusting method of the projecting apparatus adaptively adjusted |
| CN109688389A (en) * | 2018-11-23 | 2019-04-26 | 苏州佳世达电通有限公司 | Imaging device and parameter regulation means |
| CN109688390A (en) * | 2018-12-12 | 2019-04-26 | 中国科学院深圳先进技术研究院 | A kind of projected picture auto-correction method, system |
| CN110996086A (en) * | 2019-12-26 | 2020-04-10 | 成都极米科技股份有限公司 | Projection brightness adjusting method and related device |
| CN110996086B (en) * | 2019-12-26 | 2022-07-08 | 成都极米科技股份有限公司 | Projection brightness adjusting method and related device |
| CN113485067A (en) * | 2021-09-08 | 2021-10-08 | 深圳市火乐科技发展有限公司 | Brightness adjusting method and device, projection equipment and computer readable storage medium |
| CN113485067B (en) * | 2021-09-08 | 2021-12-07 | 深圳市火乐科技发展有限公司 | Brightness adjusting method and device, projection equipment and computer readable storage medium |
| CN115388808A (en) * | 2022-08-29 | 2022-11-25 | 易思维（杭州）科技有限公司 | DLP projector parameter self-adjusting method for structured light sensor calibration |
| CN115388808B (en) * | 2022-08-29 | 2024-04-09 | 易思维(杭州)科技股份有限公司 | DLP projector parameter self-adjustment method for calibrating structured light sensor |
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Application publication date: 20150923 |
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