CN102162979A - Method and device for automatically adjusting image projected by projector - Google Patents
Method and device for automatically adjusting image projected by projector Download PDFInfo
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- CN102162979A CN102162979A CN2011100878830A CN201110087883A CN102162979A CN 102162979 A CN102162979 A CN 102162979A CN 2011100878830 A CN2011100878830 A CN 2011100878830A CN 201110087883 A CN201110087883 A CN 201110087883A CN 102162979 A CN102162979 A CN 102162979A
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- 238000003384 imaging method Methods 0.000 claims abstract description 19
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- 230000001915 proofreading effect Effects 0.000 description 1
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Abstract
The invention discloses a method for automatically adjusting the image projected by a projector. The method comprises the following steps: setting a recognizable imaging mark on a screen; extracting a preset front sight image through a menu; photographing images of the screen by a camera to recognize the positions of the mark and the preset front sight on the screen; determining whether the projected images of the mark and the preset front sight are superposed; calculating the relative coordinates of the preset front sight projected image and the mark; and adjusting the position of the projector. The invention also discloses a device for realizing the above adjustment method. The device comprises a projection module, the screen, the preset front sight, the camera, an image recognition processing module and a projector position adjusting module, wherein the camera is located on the projection module and is sequentially connected with the image recognition processing module and the projector position adjusting module. The method and the device can achieve full-automatic adjustment of trapeziform distortion of the images projected by the projector so as to save the fine adjustment time of users.
Description
Technical field
The present invention relates to a kind of projector, particularly relates to a kind of method of adjustment and implement device thereof of projector projected image.
Background technology
At present, piecing together the wall display screen mostly adopts projector to carry out Projection Display.
Projector with image projection on screen, in some cases, projector be arranged on the lower position and with image projection on the screen that higher relatively position is set, this is called " oblique-angle projection ".In the process of oblique-angle projection, be deformed into trapezoidally from rectangle because the cause at the elevation angle in oblique-angle projection is projected in image on the screen, this distortion is called " trapezoidal distortion ".The projector of relevant prior art can comprise specific proofreaies and correct trapezoidal distortion by strong and menu.The user can use this button and manually adjust trapezoidal distortion.Be that the people observes image that projector becomes, judge its type, and by the corresponding algorithm of type selecting, make image level off to standard by fine setting at last.
Granted publication number discloses a kind of projector of carrying out keystone correction for the Chinese invention patent instructions of CN1225901C, realized a kind of automatic keystone correction, this automatic keystone correction makes unfamiliar user can easily obtain the image of the trapezoidal distortion of proofreading and correct in the process of oblique-angle projection.This projector detects the variation at its elevation angle by using elevation angle detection module.When this angle stopped to change, projector determined that the elevation angle adjusting that the user carries out finishes, and carries out the automatic keystone correction of input picture according to the elevation angle.
Though above prior art can realize substantially that the trapezoidal machine of projector image becomes from normal moveout correction, adopt such correcting mode, the user of service still must manually finely tune according to the imaging of projector and the size at the elevation angle.Make troubles for unfamiliar user, the effect of correction also is difficult to guarantee, and the waste running time.
Summary of the invention
The object of the present invention is to provide a kind of method is easy, simple in structure, be easy to realize projector projected image automatic adjusting method and implement device thereof fully automatically.
Purpose of the present invention is achieved through the following technical solutions:
A kind of automatic adjusting method of projector projected image comprises:
(a) sign: on screen, set the sign that can be identified as picture; With
(b) access the default foresight image of projector: the menu by projector accesses an image that is provided with a default foresight, adjusts to make the position of described default foresight in described image identical with the described position that is indicated on the described screen; With
(c) image information collection identification: use camera that screen is taken, discern described sign and described default foresight and be projected in position on the screen; With
(d) position judgment: check indicating described in the image of taking whether overlap with the projection imaging of described default foresight, if "Yes", then execution in step (g) finishes adjustment, as if "No", then carries out following steps;
(e) calculate the relative coordinate of presetting foresight projection imaging and described sign: the projection imaging position with default foresight is an initial point, sets up plane right-angle coordinate; Calculate again described be indicated in coordinate in this coordinate system (x, y); With
(f) projector position adjustment: if the projector elevation angle is then upwards finely tuned in y＞0, if y＜0 is then finely tuned the projector elevation angle downwards, then execution in step (c);
(g) finish to adjust.
As a preferred embodiment of the present invention, above-mentioned (a) identification of steps specifically can be at the middle and lower part of screen mark one physics and indicates.
As the further improvement of technical solution of the present invention, the adjustment of above-mentioned (f) projector position also can comprise: if x＞0, and the level projector that moves right then, if x＜0, then level is moved to the left projector.
A kind of projector projected image automatic regulating apparatus, comprise projection module and
Screen has a sign that can be identified as picture on described screen;
Default foresight is positioned on the image that accesses by the menu of projector, and described default foresight is identical with the described position that is indicated on the described screen in the position on the described image;
Camera is used for described screen is taken, and sends the information of being gathered to the image recognition processing module;
The image recognition processing module is used to receive the image information of obtaining from described camera, discerns the imaging at shooting area of described sign and default foresight, judges whether the position that indicates in shooting area overlaps with the projected position of presetting foresight;
The projector position adjusting module, be used to receive described image recognition processing module information after, calculate the relative position of described sign and described default foresight projection imaging, then according to described relative position, the position of projector is adjusted;
Described camera is positioned on the projection module, links to each other successively with the projector position adjusting module with described image recognition processing module.
As a preferred embodiment of the present invention, described sign specifically can be a centrosymmetric planar graph.
As a preferred embodiment of the present invention, the centre of figure of the default foresight of described projector have one with the identical white hollow of described sign shape, the color of remainder is identical with the color of described sign.
The present invention with respect to the major advantage and the beneficial effect of prior art is: method of adjustment of the present invention is simple and easy to do, device construction is simple, only needing on general projectors, to increase the camera that is used for image acquisition and identification on the hardware, one of simple marking is used to the sign of the be identified as picture discerned on projection screen, with low cost, be easy to apply.The present invention can realize fully automatically adjusting the trapezoidal distortion of projector projected image, saves the time of user of service's fine setting, and can obtain more satisfactory drop shadow effect.
Description of drawings
Fig. 1 is the basic structure synoptic diagram of projector projected image automatic regulating apparatus of the present invention;
Fig. 2 is the synoptic diagram that the projector position adjustment module is adjusted the projector projected image;
Fig. 3 is the process flow diagram of projector projected image automatic adjusting method of the present invention.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
Fig. 1 shows the basic structure of projector projected image automatic regulating apparatus of the present invention, and projector projected image automatic regulating apparatus comprises: screen SC, projection module 1, camera 2, image recognition processing module 3, projector position adjusting module 4.
Indicate 6 at the middle and lower part of screen SC mark one redness " ten " word physics, use the projector menu, access an image default foresight 7 is set, should preset the circle that is shaped as of foresight 7, the center has one to indicate the identical white hollow of 6 shapes " ten " word with physics, and it is identical that the color of remainder and physics indicate 6 color, and default foresight 7 is identical with the position of physics sign 6 on screen in the position of this image, except that default foresight, the remainder of this image is white.Camera 2 photographed screen SC zones, the information of being gathered sends image recognition processing module 3 to, 3 identification physics sign 6 and the imagings of default foresight 7 on screen SC of image recognition processing module, and judge whether both overlap.The information that projector position adjusting module 4 receives from image recognition processing module 3, (x y), adjusts the position of projector the relative coordinate of computational physics sign 6 and 7 projection imagings of default foresight.Fig. 2 shows between projector position adjusting module 4 image before and after adjusting and concerns.
Fig. 3 shows the flow process of projector projected image automatic adjusting method of the present invention.Its step comprises:
S101: mark physics indicates 6 on screen;
S102: use the projector menu, access an image default foresight 7 is set;
S103: use 2 pairs of screen SC of camera to take, utilization except physics indicate 6 and the projection imaging outer projection image remainder of default foresight 7 indicate 6 the equal feature of shape for white pixel and default foresight 7 and physics, identification physics indicates 6 and is imaged on the position of taking view field with default foresight 7;
S104: whether white hollow " ten " word in the image that samples with camera 2 in default foresight 7 projection imagings is indicated 6 by physics, and to add completely be standard, judge that physics indicates 6 and whether coincides with the imaging of presetting foresight 7 in taking view field's image, if "Yes" is then carried out S107, if "No" is then carried out S105;
S105: the projection imaging position with default foresight 7 is an initial point, sets up plane right-angle coordinate; (x y), obtains the relative coordinate relation of physics sign 6 and default foresight 7 projection imaging positions to the coordinate of computational physics sign 6 in this coordinate system again;
S106: adjust projector position according to the gained relative coordinate, if the projector elevation angle is then upwards finely tuned in y＞0, if y＜0 is then finely tuned the projector elevation angle downwards; The fine setting amplitude at the projector elevation angle is 0.05 °～0.1 °; The projector if x＞0, level move right, if x＜0, level is moved to the left projector, projector WidFin amplitude is 0.5mm～1mm; After the adjustment, carry out S103 again;
S107: finish to adjust.
Above-mentioned is preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; for example; " ten " word physics sign is changed into other figures or produces the sign that can be identified as picture with other technologies; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. the automatic adjusting method of a projector projected image is characterized in that, described method comprises:
(a) sign: on screen, set the sign that can be identified as picture; With
(b) access the default foresight image of projector: the menu by projector accesses an image that is provided with a default foresight, adjusts to make the position of described default foresight in described image identical with the described position that is indicated on the described screen; With
(c) image information collection identification: use camera that screen is taken, discern described sign and described default foresight and be projected in position on the screen; With
(d) position judgment: check indicating described in the image of taking whether overlap with the projection imaging of described default foresight, if "Yes", then execution in step (g) finishes adjustment, as if "No", then carries out following steps;
(e) calculate the relative coordinate of presetting foresight projection imaging and described sign: the projection imaging position with default foresight is an initial point, sets up plane right-angle coordinate; Calculate again described be indicated in coordinate in this coordinate system (x, y); With
(f) projector position adjustment: if the projector elevation angle is then upwards finely tuned in y＞0, if y＜0 is then finely tuned the projector elevation angle downwards, then execution in step (c);
(g) finish to adjust.
2. the automatic adjusting method of projector projected image according to claim 1 is characterized in that, described (a) identification of steps is to indicate at the middle and lower part of screen mark one physics.
3. the automatic adjusting method of projector projected image according to claim 1 and 2 is characterized in that, the adjustment of described (f) projector position also comprises: if x＞0, and the level projector that moves right then, if x＜0, then level is moved to the left projector.
4. the automatic adjusting method of projector projected image according to claim 3 is characterized in that, the fine setting amplitude at the projector elevation angle is 0.05 °～0.1 °, and projector WidFin amplitude is 0.5mm～1mm.
5. a device of realizing the described projector projected image of claim 1 automatic adjusting method comprises projection module, it is characterized in that this device also comprises:
Screen has a sign that can be identified as picture on described screen;
Default foresight is positioned on the image that accesses by the menu of projector, and described default foresight is identical with the described position that is indicated on the described screen in the position on the described image;
Camera is used for described screen is taken, and sends the information of being gathered to the image recognition processing module;
The image recognition processing module is used to receive the image information of obtaining from described camera, discerns the imaging at shooting area of described sign and default foresight, judges whether the position that indicates in shooting area overlaps with the projected position of presetting foresight;
The projector position adjusting module, be used to receive described image recognition processing module information after, calculate the relative position of described sign and described default foresight projection imaging, then according to described relative position, the position of projector is adjusted;
Described camera is positioned on the projection module, links to each other successively with the projector position adjusting module with described image recognition processing module.
6. device according to claim 5 is characterized in that: described sign is marked at the middle and lower part of described screen.
7. according to claim 5 or 6 described devices, it is characterized in that: described sign is a centrosymmetric planar graph.
8. device according to claim 7 is characterized in that: described centrosymmetric planar graph is " a ten " word.
9. device according to claim 5 is characterized in that, the centre of figure of the default foresight of described projector have one with the identical white hollow of described sign shape, the color of remainder is identical with the color of described sign.
10. according to claim 5 or 9 described devices, it is characterized in that, the default foresight of described projector be shaped as circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100878830A CN102162979B (en) | 2011-04-08 | 2011-04-08 | Method and device for automatically adjusting image projected by projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100878830A CN102162979B (en) | 2011-04-08 | 2011-04-08 | Method and device for automatically adjusting image projected by projector |
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| CN102162979A true CN102162979A (en) | 2011-08-24 |
| CN102162979B CN102162979B (en) | 2013-12-04 |
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| CN2011100878830A Expired - Fee Related CN102162979B (en) | 2011-04-08 | 2011-04-08 | Method and device for automatically adjusting image projected by projector |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079853A (en) * | 2013-03-29 | 2014-10-01 | 精工爱普生株式会社 | Projector and adjustment method |
| CN104243975A (en) * | 2014-09-19 | 2014-12-24 | 西安中科晶像光电科技有限公司 | Automatic calibration system and method of 3D projector |
| CN104580899A (en) * | 2014-12-26 | 2015-04-29 | 魅族科技（中国）有限公司 | Object imaging control method and imaging device |
| CN105072430A (en) * | 2015-08-19 | 2015-11-18 | 海信集团有限公司 | Method and equipment for adjusting projected image |
| CN105323517A (en) * | 2014-07-16 | 2016-02-10 | 腾讯科技（深圳）有限公司 | Projection picture automatic calibration method and projection picture automatic calibration device |
| CN105676572A (en) * | 2016-04-19 | 2016-06-15 | 深圳市神州云海智能科技有限公司 | Projection correction method and device for projector equipped on mobile robot |
| CN106054392A (en) * | 2016-08-10 | 2016-10-26 | 深圳多哚新技术有限责任公司 | Alignment method of optical lens and display screen in VR equipment and system thereof |
| CN106803946A (en) * | 2017-01-26 | 2017-06-06 | 苏州佳世达电通有限公司 | A kind of picture alignment method and system for projection picture of projector test |
| CN107515507A (en) * | 2017-08-25 | 2017-12-26 | 安徽信息工程学院 | Projector automatic calibration device |
| CN108600734A (en) * | 2018-05-20 | 2018-09-28 | 广州极智未来科技有限公司 | Stereo imaging device and method for automatic positioning and overlapping of left and right eye images |
| CN108632593A (en) * | 2018-05-31 | 2018-10-09 | 歌尔股份有限公司 | Modification method, device and the equipment of colour convergence error |
| CN108769636A (en) * | 2018-03-30 | 2018-11-06 | 京东方科技集团股份有限公司 | Projecting method and device, electronic equipment |
| CN109243335A (en) * | 2018-09-12 | 2019-01-18 | 安徽龙禧广告传媒有限公司 | A kind of initiative advertisement dispensing device based on the projection of huge curtain |
| WO2020037491A1 (en) * | 2018-08-21 | 2020-02-27 | 神画科技（深圳）有限公司 | Method for projection system to automatically adapt to projection target |
| CN111947939A (en) * | 2020-08-07 | 2020-11-17 | 深圳市道通科技股份有限公司 | Calibration apparatus, calibration method, and calibration apparatus correction method |
| WO2022007369A1 (en) * | 2020-07-10 | 2022-01-13 | 深圳光峰科技股份有限公司 | Projector placement position adjustment method and projector |
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Cited By (23)
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|---|---|---|---|---|
| CN104079853B (en) * | 2013-03-29 | 2019-07-09 | 精工爱普生株式会社 | Projector and how to adjust it |
| CN104079853A (en) * | 2013-03-29 | 2014-10-01 | 精工爱普生株式会社 | Projector and adjustment method |
| CN105323517A (en) * | 2014-07-16 | 2016-02-10 | 腾讯科技（深圳）有限公司 | Projection picture automatic calibration method and projection picture automatic calibration device |
| CN104243975A (en) * | 2014-09-19 | 2014-12-24 | 西安中科晶像光电科技有限公司 | Automatic calibration system and method of 3D projector |
| CN104580899A (en) * | 2014-12-26 | 2015-04-29 | 魅族科技（中国）有限公司 | Object imaging control method and imaging device |
| CN105072430A (en) * | 2015-08-19 | 2015-11-18 | 海信集团有限公司 | Method and equipment for adjusting projected image |
| CN105072430B (en) * | 2015-08-19 | 2017-10-03 | 海信集团有限公司 | A kind of method and apparatus for adjusting projected image |
| CN105676572A (en) * | 2016-04-19 | 2016-06-15 | 深圳市神州云海智能科技有限公司 | Projection correction method and device for projector equipped on mobile robot |
| CN106054392B (en) * | 2016-08-10 | 2018-12-04 | 深圳多哚新技术有限责任公司 | The alignment methods and system of optical lens and display screen in VR equipment |
| CN106054392A (en) * | 2016-08-10 | 2016-10-26 | 深圳多哚新技术有限责任公司 | Alignment method of optical lens and display screen in VR equipment and system thereof |
| CN106803946B (en) * | 2017-01-26 | 2019-01-18 | 苏州佳世达电通有限公司 | A kind of picture alignment method and system for projection picture of projector test |
| CN106803946A (en) * | 2017-01-26 | 2017-06-06 | 苏州佳世达电通有限公司 | A kind of picture alignment method and system for projection picture of projector test |
| CN107515507A (en) * | 2017-08-25 | 2017-12-26 | 安徽信息工程学院 | Projector automatic calibration device |
| CN108769636A (en) * | 2018-03-30 | 2018-11-06 | 京东方科技集团股份有限公司 | Projecting method and device, electronic equipment |
| CN108600734A (en) * | 2018-05-20 | 2018-09-28 | 广州极智未来科技有限公司 | Stereo imaging device and method for automatic positioning and overlapping of left and right eye images |
| CN108600734B (en) * | 2018-05-20 | 2021-04-09 | 广州极智未来科技有限公司 | Device and method for automatically positioning and superposing left and right eye images in stereoscopic imaging |
| CN108632593A (en) * | 2018-05-31 | 2018-10-09 | 歌尔股份有限公司 | Modification method, device and the equipment of colour convergence error |
| CN108632593B (en) * | 2018-05-31 | 2020-05-19 | 歌尔股份有限公司 | Method, device and equipment for correcting color convergence errors |
| WO2020037491A1 (en) * | 2018-08-21 | 2020-02-27 | 神画科技（深圳）有限公司 | Method for projection system to automatically adapt to projection target |
| CN109243335A (en) * | 2018-09-12 | 2019-01-18 | 安徽龙禧广告传媒有限公司 | A kind of initiative advertisement dispensing device based on the projection of huge curtain |
| CN109243335B (en) * | 2018-09-12 | 2021-02-26 | 安徽龙禧广告传媒有限公司 | A creative advertising device based on giant screen projection |
| WO2022007369A1 (en) * | 2020-07-10 | 2022-01-13 | 深圳光峰科技股份有限公司 | Projector placement position adjustment method and projector |
| CN111947939A (en) * | 2020-08-07 | 2020-11-17 | 深圳市道通科技股份有限公司 | Calibration apparatus, calibration method, and calibration apparatus correction method |
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Address after: 510670 Guangdong city of Guangzhou province Kezhu Guangzhou high tech Industrial Development Zone, Road No. 233 Patentee after: Wei Chong group Limited by Share Ltd Address before: 510663 No. 6, color road, hi tech Industrial Development Zone, Guangdong, Guangzhou, China Patentee before: Guangdong Weichuangshixun Science and Technology Co., Ltd. |
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Granted publication date: 20131204 Termination date: 20200408 |