CN101888511A - Projection integration method for large screen display device - Google Patents
Projection integration method for large screen display device Download PDFInfo
- Publication number
- CN101888511A CN101888511A CN2010102233718A CN201010223371A CN101888511A CN 101888511 A CN101888511 A CN 101888511A CN 2010102233718 A CN2010102233718 A CN 2010102233718A CN 201010223371 A CN201010223371 A CN 201010223371A CN 101888511 A CN101888511 A CN 101888511A
- Authority
- CN
- China
- Prior art keywords
- projection
- displaying contents
- projector
- contents
- pixel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Controls And Circuits For Display Device (AREA)
- Projection Apparatus (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
The invention relates to a projection integration method for a large screen display device, which comprises the following steps of: dividing the display content of a view picture into a plurality of sub-display contents; projecting each sub-display content by using a projector; controlling the display content integration of each projector channel; overlapping and aligning each integrated display content by using a pixel point as a unit; performing geometric correction on each projector to ensure that the projection display contents of all the projectors form the display content of the view picture; performing dynamic regulation on the display content at a splicing part of dynamic play pictures of the projection display contents and performing light and shade transition on the light intensity; disintegrating the integrated display content, processing an RGB color signal in each pixel colored point in the integrated display content, and reducing the light intensity equivalent of the pixel point in the integrated display content to a corresponding percentage of the light intensity equivalent of the pixel point in a non-integrated area so as to ensure the continuous display and the smooth transition of an integration area; and dynamically adjusting the pixel color of the projection display contents, and coordinating the light intensity and the color to ensure that the light intensity and the color are consistent. The projection integration method can obtain high-definition video images on a large screen.
Description
Technical field
The present invention relates to image and show the field, relate in particular to a kind of projection fusion method of large-screen display equipment.
Background technology
Along with the video development in pluralism, bright and colourful picture, the video of the big picture of high definition enjoys to be liked.Abundant picture can attract more concern, and the characteristics of high definition can be passed on more information.Industries such as advertising, product introduction, information popularization, report exhibition, functional government departments are in information-based progressive forward position always, no matter be that virtual emulation or edge merge, no matter be projector or fusion screen, all along with the development of projection splicing, edge integration technology, high definition, high-resolution, big picture effect are more and more approved by people, along with the continuous reduction of use cost, projection splicing, edge integration technology have obtained large-area universal use.
The edge merges, seamless spliced be with the processing of the picture of many projectors' projections through the edge integration technology, finally realize the effect of a view picture picture.It is the geometry deformations that can increase display resolution, increase projected picture area, shorten projector distance, correction projected picture that the edge merges maximum characteristics.Bigger resolution means under the identical situation of picture dimension can show more abundant content, bigger display frame can show the picture of super large under the resolution situation identical with definition, allow more people, farther distance all can be clear that exhibition information.
Along with improving constantly of video requirement, stage, commander, application demands such as scheduling are all by the projection convergence platform, the scene of occurring in nature, environment, personage or the like series of factors is input in the computer by data pattern, by modeling, make, finally realize in the computer environment with nature " the same ".This environment can pass through the virtual reality system platform, data in the data model are exported the right and left eyes file respectively in right and left eyes according to the physical principle of human eye in the middle of playing, the person that finally do not let on has impression on the spot in person, and realizes scene live play, product introduction, scientific experimentation, educational training or the like field by human-computer interaction.
Summary of the invention
Technical problem to be solved by this invention provides a kind of projection fusion method of large-screen display equipment, can obtain the video image of high definition on large-screen.
For solving the problems of the technologies described above, the present invention proposes a kind of projection fusion method of large-screen display equipment, be applied to a plurality of projectors side by side to the image display system of described large screen projection, it is characterized in that, comprise the steps:
Step (a), the view picture displaying contents is divided into a plurality of sub-displaying contents, each sub-displaying contents carries out projection with a projector, the displaying contents of each projector's passage of control merges in real time, each is merged displaying contents is that unit carries out overlapping and alignment with the picture element, and described fusion displaying contents is the imbricate image between adjacent two projectors;
Step (b) is carried out geometric correction to each projector, makes the projection display contents of each projector form an entire image;
Step (c) is dynamically adjusted light and shade transition with luminous intensity to the displaying contents at the dynamic play picture splicing place of described projection display contents;
Step (d), described fusion displaying contents is decomposed, RGB color signal in each pixel colored spots in the described fusion displaying contents is handled, the luminous intensity equivalent of pixel in the described fusion displaying contents is reduced to the corresponding percentage of non-integration region pixel luminous intensity equivalent, i.e. brightness 10% to 60% between;
Step (e) is dynamically adjusted the pixel color of described projection display contents, coordinates luminous intensity and color, and the two is kept consistency.
Further, said method also can have following characteristics, in the described step (a), the quantity of the described sub-displaying contents of cutting apart equal large-screen with the quantity of projector.
Further, said method also can have following characteristics, and in the described step (b), described geometric correction comprises linear geometry correction and non-linear geometry correction.
Further, said method also can have following characteristics, in the described step (d), the processing of described RGB color signal is comprised filtration, screens and separates.
The projection fusion method of large-screen display equipment of the present invention can obtain the video image of high definition on large-screen.
Description of drawings
Fig. 1 is the projection theory figure of cordwood system type casing screen among the present invention;
Fig. 2 is without the display effect schematic diagram of geometric correction with the process geometric correction;
Fig. 3 is the luminous intensity schematic diagram of fused images among the present invention;
Fig. 4 handles schematic diagram for integration region among the present invention;
Fig. 5 is circular arc geometric correction of the present invention and merges the control schematic diagram.
Embodiment
Below in conjunction with accompanying drawing principle of the present invention and feature are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
Among the present invention, merge the cordwood system type display unit stacked system that the closed casing that uses adopts matrix form, need not the height and the casing edge pin point of each display unit are alignd, because whole closed box system fabrication technique is cut apart for the integral type multiple unit, its adjusting requirement and labour intensity reduce greatly.Some situation can just can cooperate TsingtooGPU that image is merged debugging fast by adjusting the mechanical structure fine setting.
Body structure among the present invention is to have oversize (monolithic shows above 200 cun), ultra-thin, multimachine core, carry out the cordwood system type body structure that matrix form is arranged.Whole casing uses independently projector by forming according to a plurality of display units that preset proportion is divided into according to corresponding display size requirement between display unit is mutual.
Fig. 1 is the projection theory figure of rear projection screen among the present invention.Among Fig. 1, the light source 13 of DLP image light source 11 after becoming reflection behind the screen 12.
The projection fusion method of large-screen display equipment of the present invention is applied to a plurality of projectors side by side to the image display system of described large screen projection, comprising:
Step 101, the view picture displaying contents is divided into a plurality of sub-displaying contents, each sub-displaying contents carries out projection with a projector, the displaying contents of each projector's passage of control merges in real time, each is merged displaying contents is that unit carries out overlapping and alignment with the picture element, and the fusion displaying contents is the imbricate displaying contents between adjacent two projectors;
The quantity of the sub-displaying contents of wherein, cutting apart equal large-screen with the quantity of projector.
Can utilize Tsingtoo GPU (the Graphic Processing Unit that figure division management function is housed, graphic process unit) the distribute displaying contents of each DLP ray machine projected channel of control of processor real-time merges, and each is merged displaying contents is that unit carries out overlapping and alignment with the pixel.Wherein, the figure division management is cut apart entire image according to the number of the broadcast ratio of picture (i.e. the image that will show) and corresponding casing display unit and arrangement mode and is put in order, and band (being the fused images zone) is merged in the demonstration that marks off each display unit split screen.
Step 102 is carried out geometric correction to each projector, makes the projection display contents of each projector form an entire image;
Wherein, geometric correction can comprise linear geometry correction and non-linear geometry correction.Matching process with automatic or manual can be to DLP (the Digital Light Procession of projected image, the digital light processing), LCD, LCOS projector carry out linear geometry correction and non-linear geometry correction, make each projection display contents form panoramic picture, i.e. an entire image.
Wherein, the method that geometric correction can use a kind of effective control point (CP) to determine automatically, at first the notion at definition datum control point (RCP) and distortion control point (DCP) and then has designed a kind of image detection template based on the image variance, proposes relevant detection criterion and search plan; In fault image, utilize the relevant image matching algorithm of normalizing eliminate indigestion to realize the accurate location at corresponding distortion control point, benchmark control point (DCP) then, thereby realize that figure is to correction of the correspondence between projector's image and the projection screen and setting.Fig. 2 is without the display effect schematic diagram of geometric correction with the process geometric correction, as can be seen from Figure 2, has eliminated distortion through the display image of geometric correction.
Fig. 5 is circular arc geometric correction of the present invention and merges the control schematic diagram.Among Fig. 5, A point, B point, C point are effective control point (CP), and D point and E point are distortion control point (DCP).
Step 103 is dynamically adjusted light and shade transition with luminous intensity to the displaying contents at the dynamic play picture splicing place of described projection display contents;
Can utilize the high calculation process speed of Tsingtoo GPU to use the fusion function dynamically to adjust with the light and shade of luminous intensity excessive to the displaying contents at the dynamic play picture splicing place of projected image.Fig. 3 is for merging the luminous intensity schematic diagram of displaying contents among the present invention.
Step 104, described fusion displaying contents is decomposed, RGB (RGB) color signal in each pixel colored spots in the described fusion displaying contents is handled, the luminous intensity equivalent of pixel in the described fusion displaying contents is reduced to the corresponding percentage of non-integration region pixel luminous intensity equivalent;
Wherein, the processing to the RGB color signal comprises filtration, screens and separates.The luminous intensity equivalent that merges pixel in the displaying contents is reduced to the corresponding percentage of non-integration region pixel luminous intensity equivalent, can be so that the pixel brightness of the luminous intensity of integration region and peripheral non-integration region be consistent substantially.
Merging colored dynamically excessively function can be by utilizing the hardware handles performance of Tsingtoo GPU, in processing such as the displaying contents that merges function and integration region is handled filtration, the examination of adopting Pixel-level, separate.RGB on the pixel three looks are separated and resolve, and isolated fusion band pixel is carried out brightness regulation and color reduction, guarantee the brightness smooth excessiveness and the color rendition degree of whole picture.
Fig. 4 handles schematic diagram for integration region among the present invention.As shown in Figure 4, be untreated and merge pixel 41 through handling the fusion pixel 43 that becomes after the processing of merging pixels 42 after the processing.
Step 105 is dynamically adjusted the pixel color of described projection display contents, coordinates luminous intensity and color, and the two is kept consistency.
Can realize with the pixel being dynamic the adjustment and whole united and coordinating function of color of unit by obtaining the pixel color values of projection display contents automatically, guarantee the luminous intensity and the consistency of colour of the projection display contents of multichannel DLP projector.
The present invention can provide plane or arc screen for seamless large-screen, automatic match pattern or manual senior adjusting pattern by Tsingtoo GPU, automatically according to the image detection template, determine that effective control point (CP) and control and intervention distortion control point (DCP) are next to accurately locating, guarantee the accuracy of projection structure and the mechanical positioning flow process of projector's part.
The projection fusion method of large-screen display equipment of the present invention can obtain the video image of high definition on large-screen.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. the projection fusion method of a large-screen display equipment is applied to a plurality of projectors side by side to the image display system of described large screen projection, it is characterized in that, comprises the steps:
Step (a), the view picture displaying contents is divided into a plurality of sub-displaying contents, each sub-displaying contents carries out projection with a projector, the displaying contents of each projector's passage of control merges in real time, each is merged displaying contents is that unit carries out overlapping and alignment with the picture element, and described fusion displaying contents is the imbricate displaying contents between adjacent two projectors;
Step (b) is carried out geometric correction to each projector, makes the projection display contents of each projector form an entire image;
Step (c) is dynamically adjusted light and shade transition with luminous intensity to the image at the dynamic play picture splicing place of described projection display contents;
Step (d), described fusion displaying contents is decomposed, RGB color signal in each pixel colored spots in the described fusion displaying contents is handled, the corresponding percentage that the luminous intensity equivalent of pixel in the described fusion displaying contents is reduced to non-integration region pixel luminous intensity equivalent be brightness 10% to 60% between;
Step (e) is dynamically adjusted the pixel color of described projection display contents, coordinates luminous intensity and color, and the two is kept consistency.
2. the projection fusion method of large-screen display equipment according to claim 1 is characterized in that, in the described step (a), the quantity of the described sub-displaying contents of cutting apart equal large-screen with the quantity of projector.
3. the projection fusion method of large-screen display equipment according to claim 1 is characterized in that, in the described step (b), described geometric correction comprises linear geometry correction and non-linear geometry correction.
4. the projection fusion method of large-screen display equipment according to claim 1 is characterized in that, in the described step (d), the processing of described RGB color signal is comprised filtration, screens and separates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102233718A CN101888511A (en) | 2010-07-12 | 2010-07-12 | Projection integration method for large screen display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102233718A CN101888511A (en) | 2010-07-12 | 2010-07-12 | Projection integration method for large screen display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101888511A true CN101888511A (en) | 2010-11-17 |
Family
ID=43074199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102233718A Pending CN101888511A (en) | 2010-07-12 | 2010-07-12 | Projection integration method for large screen display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101888511A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103037189A (en) * | 2012-12-05 | 2013-04-10 | 江苏清投视讯科技有限公司 | Method to achieve integrate output of large-size screen video images through much projection |
| CN103369283A (en) * | 2013-06-24 | 2013-10-23 | 深圳市创凯电子有限公司 | Multi-projection correction method and device |
| CN103841343A (en) * | 2012-11-23 | 2014-06-04 | 中强光电股份有限公司 | Projection system and operation method thereof |
| CN104052952A (en) * | 2013-03-14 | 2014-09-17 | 精工爱普生株式会社 | Image processing apparatus, projector, and image processing method |
| CN104702929A (en) * | 2013-12-09 | 2015-06-10 | Cjcgv株式会社 | Method of correcting distortion of image overlap area, recording medium, and execution apparatus |
| CN104702928A (en) * | 2013-12-09 | 2015-06-10 | Cjcgv株式会社 | Method of correcting image overlap area, recording medium, and execution apparatus |
| CN104954769A (en) * | 2015-06-15 | 2015-09-30 | 中国科学院自动化研究所 | Immersion type ultra-high-definition video processing system and method |
| CN105376540A (en) * | 2014-08-27 | 2016-03-02 | 中强光电股份有限公司 | Projection display system and correction method of projection area |
| CN106162115A (en) * | 2015-03-25 | 2016-11-23 | 上海分众软件技术有限公司 | A kind of image interfusion method based on Play System |
| CN108012131A (en) * | 2017-11-30 | 2018-05-08 | 四川长虹电器股份有限公司 | Projector image edge blending system and method |
| CN108271009A (en) * | 2018-01-25 | 2018-07-10 | 深圳市智控王科技有限公司 | Super brightness and the device and its projecting method of ultrahigh resolution projection |
| CN108989775A (en) * | 2017-06-05 | 2018-12-11 | 北京互动文博科技有限公司 | A kind of projection screen seamless joint method and device |
| CN111918042A (en) * | 2019-05-08 | 2020-11-10 | 青岛海信激光显示股份有限公司 | Projector and projection system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976482A (en) * | 2005-11-28 | 2007-06-06 | 上海科技馆 | Irregular stereo-curtain projecting method |
| CN101017315A (en) * | 2007-02-13 | 2007-08-15 | 上海水晶石信息技术有限公司 | Multiscreen playing automatically integrating pretreatment method suitable for irregular screen |
| CN101039379A (en) * | 2006-03-18 | 2007-09-19 | 吴小平 | Replacement folded edge-melted splicing technique |
| CN101132535A (en) * | 2007-09-12 | 2008-02-27 | 浙江大学 | Multi-projection large screen split-joint method based on rotating platform |
| CN101727880A (en) * | 2009-11-23 | 2010-06-09 | 清投视讯(北京)科技有限公司 | Projection fusion method of true seamless rear projection large screen display image |
-
2010
- 2010-07-12 CN CN2010102233718A patent/CN101888511A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976482A (en) * | 2005-11-28 | 2007-06-06 | 上海科技馆 | Irregular stereo-curtain projecting method |
| CN101039379A (en) * | 2006-03-18 | 2007-09-19 | 吴小平 | Replacement folded edge-melted splicing technique |
| CN101017315A (en) * | 2007-02-13 | 2007-08-15 | 上海水晶石信息技术有限公司 | Multiscreen playing automatically integrating pretreatment method suitable for irregular screen |
| CN101132535A (en) * | 2007-09-12 | 2008-02-27 | 浙江大学 | Multi-projection large screen split-joint method based on rotating platform |
| CN101727880A (en) * | 2009-11-23 | 2010-06-09 | 清投视讯(北京)科技有限公司 | Projection fusion method of true seamless rear projection large screen display image |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103841343A (en) * | 2012-11-23 | 2014-06-04 | 中强光电股份有限公司 | Projection system and operation method thereof |
| CN103841343B (en) * | 2012-11-23 | 2017-03-15 | 中强光电股份有限公司 | Optical projection system and its How It Works |
| CN103037189B (en) * | 2012-12-05 | 2016-03-09 | 江苏清投视讯科技有限公司 | A kind of method realizing multiple projections overall output large-size screen monitors frame video image |
| CN103037189A (en) * | 2012-12-05 | 2013-04-10 | 江苏清投视讯科技有限公司 | Method to achieve integrate output of large-size screen video images through much projection |
| CN104052952A (en) * | 2013-03-14 | 2014-09-17 | 精工爱普生株式会社 | Image processing apparatus, projector, and image processing method |
| CN103369283A (en) * | 2013-06-24 | 2013-10-23 | 深圳市创凯电子有限公司 | Multi-projection correction method and device |
| CN104702929A (en) * | 2013-12-09 | 2015-06-10 | Cjcgv株式会社 | Method of correcting distortion of image overlap area, recording medium, and execution apparatus |
| US9558541B2 (en) | 2013-12-09 | 2017-01-31 | Cj Cgv Co., Ltd. | Method of correcting image overlap area, recording medium, and execution apparatus |
| CN104702928A (en) * | 2013-12-09 | 2015-06-10 | Cjcgv株式会社 | Method of correcting image overlap area, recording medium, and execution apparatus |
| CN104702928B (en) * | 2013-12-09 | 2017-04-12 | Cj Cgv 株式会社 | Method of correcting image overlap area, recording medium, and execution apparatus |
| US9690175B2 (en) | 2013-12-09 | 2017-06-27 | Cj Cgv Co., Ltd. | Method of correcting distortion of image overlap area, recording medium, and execution apparatus |
| CN104702929B (en) * | 2013-12-09 | 2018-04-20 | Cj Cgv 株式会社 | Correction map is as the method, recording medium and executive device of the distortion of crossover region |
| CN105376540A (en) * | 2014-08-27 | 2016-03-02 | 中强光电股份有限公司 | Projection display system and correction method of projection area |
| CN106162115A (en) * | 2015-03-25 | 2016-11-23 | 上海分众软件技术有限公司 | A kind of image interfusion method based on Play System |
| CN104954769A (en) * | 2015-06-15 | 2015-09-30 | 中国科学院自动化研究所 | Immersion type ultra-high-definition video processing system and method |
| CN108989775A (en) * | 2017-06-05 | 2018-12-11 | 北京互动文博科技有限公司 | A kind of projection screen seamless joint method and device |
| CN108012131A (en) * | 2017-11-30 | 2018-05-08 | 四川长虹电器股份有限公司 | Projector image edge blending system and method |
| CN108271009A (en) * | 2018-01-25 | 2018-07-10 | 深圳市智控王科技有限公司 | Super brightness and the device and its projecting method of ultrahigh resolution projection |
| CN111918042A (en) * | 2019-05-08 | 2020-11-10 | 青岛海信激光显示股份有限公司 | Projector and projection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101727880B (en) | Projection fusion method of true seamless rear projection large screen display image | |
| CN101888511A (en) | Projection integration method for large screen display device | |
| CN103037189A (en) | Method to achieve integrate output of large-size screen video images through much projection | |
| CA2412319C (en) | Method and apparatus for seamless integration of images using a transmissive/reflective mirror | |
| CN102081284A (en) | Edge blending method for splicing multiple projection images | |
| CN111192552B (en) | Multi-channel LED spherical screen geometric correction method | |
| CN102098521A (en) | Splicing and fusing method applied to display large-sized images | |
| US20140016100A1 (en) | Multi-projection system | |
| CN101409790B (en) | High-efficiency multi-projector splicing and amalgamation method | |
| CN108012131A (en) | Projector image edge blending system and method | |
| CN101795374A (en) | Method and system for image display of true seamless projection type large screen | |
| CN104702929A (en) | Method of correcting distortion of image overlap area, recording medium, and execution apparatus | |
| CN105306852A (en) | Multi-projector stitching fusion method for high-quality visual effect | |
| CN201919121U (en) | Projection system for mosaicking of multiple projected images | |
| CN104317546A (en) | Situational interactive experience simulation system | |
| CN104516482A (en) | Shadowless projection system and method | |
| CN112118428B (en) | Image processing method and device and laser television | |
| CN103227914A (en) | Application of multimedia edge fusion technique | |
| CN103037190A (en) | Distributed hardware system to achieve integrate output of large-size screen video images through much projection | |
| CN104038748B (en) | Multichannel data fusion correction method | |
| US20020158877A1 (en) | Shadow buffer control module method and software construct for adjusting per pixel raster images attributes to screen space and projector features for digital wrap, intensity transforms, color matching, soft-edge blending and filtering for multiple projectors and laser projectors | |
| KR101835060B1 (en) | Autostereoscopic 3-Dimensional Display | |
| CN203399226U (en) | Projection image merging device | |
| CN115883805B (en) | Multi-projector picture splicing color fusion method, fusion device and storage medium | |
| CN110400277A (en) | One bulb curtain geometric correction system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101117 |