CN103037189A - Method to achieve integrate output of large-size screen video images through much projection - Google Patents
Method to achieve integrate output of large-size screen video images through much projection Download PDFInfo
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Abstract
The invention provides a method to achieve integrate output of large-size screen video images through much projection. The method to achieve the integrate output of the large-size screen video images through the much projection comprises the following steps: step one, cutting a whole image into a plurality of sub-images, projecting each sub-image by a projector, timely controlling image fusions in each path of the projectors, overlapping and aligning each fusion image with a picture element point as a unit, wherein the fusion images are edge overlapped images between two neighboring projectors; step two, conducting geometric correction on each of the projectors to ensure that a whole image is formed by projected images of each projector; step three, decomposing the fusion images and processing red green blue (RGB) signals inside each picture element coloring points in the fusion images. The method to achieve the integrate output of the large-size screen video images through the much projection effectively solves achieving methods of randomly expanding and outputting large-size pictures and high-definition pictures, and meanwhile completely solves field environment disturbance and installment limits of the projection fusion.
Description
Technical field
The present invention relates to image and show the field, relate in particular to a kind of method that realizes the whole output of a plurality of projections large-size screen monitors picture video image.
Background technology
Along with the video development in pluralism, bright and colourful picture, the video of the large 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.The industries such as advertising, product introduction, information popularization, report exhibition, functional government departments are in information-based progressive forward position always, no matter be virtual emulation or Fusion Edges, no matter be projector or fusion screen, all along with the development of projection splicing, edge fusion technology, high definition, high-resolution, large picture effect are more and more approved by people, along with the continuous reduction of use cost, projection splicing, edge fusion technology have obtained large-area universal use.
Fusion Edges, seamless spliced be with the processing through edge fusion technology of the picture of many projectors projection, finally realize the effect of a view picture picture.The maximum characteristics of Fusion Edges are the geometry deformations that can increase display resolution, increase projected picture area, shorten projector distance, correction projected picture.Larger resolution means in the identical situation of picture dimension can show abundanter content, larger display frame can show the picture of super large in 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, the application demands such as scheduling are all by the projection convergence platform, the scene of occurring in nature, environment, personage etc. 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 respectively the right and left eyes file 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 etc. field by human-computer interaction.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part, a kind of method that realizes the whole output of a plurality of projections large-size screen monitors picture video image is provided, can solve any a plurality of projection output, form whole large-size screen monitors, export large picture, the video image of high definition.
The method of the whole output of a plurality of projections of realization of the present invention large-size screen monitors picture video image may further comprise the steps:
1) entire image is divided into a plurality of subimages, every number of sub images is carried out projection with a projector, control in real time the image co-registration of each projector's passage, carry out each fused images overlapping take picture element as unit and alignment, fused images is the imbricate image between adjacent two projectors;
2) each projector is carried out geometric correction, so that the projected image of each projector forms an entire image;
3) described fused images is decomposed, RGB color signal in each pixel colored spots in the described fused images is processed, the luminous intensity equivalent of pixel in the described fused images is reduced to the corresponding percentage of non-integration region pixel luminous intensity equivalent.
Described step 2) and between the step 3) also comprise: utilize the high calculation process speed of TsingtooGPU to use fusion function dynamically to adjust with the light and shade of luminous intensity excessive to the image at the dynamic play picture splicing place of projected image.
Described step 2) geometric correction described in comprises linear geometry correction and non-linear geometry correction.
The method that described geometric correction uses effective control point automatically to determine.
The present invention has following technique effect:
1) geometric correction of energy complete independently input picture, Fusion Edges is so that the projected image of each projector forms an entire image;
2) distributed fusion adopts single-chip to realize main scalloping and Fusion Edges algorithm;
3) to merge width be 0-1024 pixel to the integration region image, and the RGB color treatments in the described fused images in each pixel colored spots is maximum 256 rank.
4) piece image can be cut, amplify, the quantity of the subimage of cutting apart equals to throw
Shadow output institute is with the quantity of projector, and can realize M*N output fusion, M, and N trends towards infinity.
5) laterally interval and vertical each 0-890 pixel of geometric correction.
Description of drawings
Fig. 1 is basic principle figure of the present invention;
Fig. 2 is that 2*2 merges geometric correction and details in a play not acted out on stage, but told through dialogues adjusting schematic diagram among the present invention;
Fig. 3 is the luminous intensity schematic diagram of fused images among the present invention;
Fig. 4 is that integration region is processed schematic diagram among the present invention;
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 for explaining the present invention, is not be used to limiting scope of the present invention.
Among the present invention, merge the projector that uses and need not to be placed on sustained height or make image output substantially neat.Because just can carry out various debugging to image by supporting TsingtooGPU image fusion software.
The method of the whole output of a plurality of projections of realization of the present invention large-size screen monitors picture video image may further comprise the steps:
Step 101, entire image is divided into a plurality of subimages, every number of sub images is carried out projection with a projector, control in real time the image co-registration of each projector's passage, carry out each fused images overlapping take picture element as unit and alignment, fused images is the imbricate image between adjacent two projectors;
Step 102 is carried out geometric correction to each projector, so that the projected image of each projector forms 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 the DLP(Digital Light Procession of projected image, the digital light processing) projector carries out linear geometry correction and non-linear geometry correction, so that each projected image forms panoramic picture, i.e. an entire image.
Wherein, the method that geometric correction can use a kind of effective control point (CP) automatically to determine, the concept of definition datum control point (RCP) and aberration control point (DCP) at first, and then designed a kind of image detection template based on image variance, corresponding detection criteria and search plan are proposed; Then the accurate location that in fault image, utilizes the relevant image matching algorithm of normalizing eliminate indigestion to realize the aberration control point (DCP) that the benchmark control point is corresponding, thus realize that figure is to the 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 demonstration image of geometric correction.
Can utilize the high calculation process speed of TsingtooGPU to use fusion function dynamically to adjust with the light and shade of luminous intensity excessive to the image at the dynamic play picture splicing place of projected image.Fig. 3 is the luminous intensity schematic diagram of fused images among the present invention.
Step 104, described fused images is decomposed, to the RGB(RGB in each pixel colored spots in the described fused images) color signal processes, and the luminous intensity equivalent of pixel in the described fused images is reduced to the corresponding percentage of non-integration region pixel luminous intensity equivalent;
Merging colored dynamically excessively function can be by utilizing the hardware handles performance of TsingtooGPU, in the processing such as the image of fusion function and integration region is processed filtration, the examination of adopting Pixel-level, separate.RGB three looks on the pixel are separated and resolve, and isolated fusion band pixel is carried out brightness regulation and color reduction, guarantee brightness smooth excessiveness and the color rendition degree of whole picture.
Fig. 4 is that integration region is processed schematic diagram among the present invention.As shown in Figure 4, be untreated and merge pixel 41 through processing the fusion pixel 43 that becomes after the processing of merging pixels 42 after the processing.
The projection fusion device of a kind of distributed multi-channel image of the present invention can obtain at large-screen the video image of high definition.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a method that realizes the whole output of a plurality of projections large-size screen monitors picture video image is characterized in that, may further comprise the steps:
1) entire image is divided into a plurality of subimages, every number of sub images is carried out projection with a projector, control in real time the image co-registration of each projector's passage, carry out each fused images overlapping take picture element as unit and alignment, fused images is the imbricate image between adjacent two projectors;
2) each projector is carried out geometric correction, so that the projected image of each projector forms an entire image;
3) described fused images is decomposed, RGB color signal in each pixel colored spots in the described fused images is processed, the luminous intensity equivalent of pixel in the described fused images is reduced to the corresponding percentage of non-integration region pixel luminous intensity equivalent.
2. a plurality of projections integral body of realization according to claim 1 are exported the method for large-size screen monitors picture video image, it is characterized in that described step 2) and step 3) between also comprise: utilize the high calculation process speed of TsingtooGPU to use fusion function dynamically to adjust with the light and shade of luminous intensity excessive to the image at the dynamic play picture splicing place of projected image.
3. the method for the whole output of a plurality of projections of realization according to claim 1 large-size screen monitors picture video image is characterized in that step 2) described in geometric correction comprise that linear geometry proofreaies and correct and non-linear geometry correction.
4. the method for the whole output of a plurality of projections of realization according to claim 3 large-size screen monitors picture video image is characterized in that the method that described geometric correction uses effective control point automatically to determine.
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| CN104038714A (en) * | 2013-07-06 | 2014-09-10 | 成都智慧星球科技有限公司 | Projector network intelligent upgrading module and control platform system |
| CN104536714A (en) * | 2015-01-07 | 2015-04-22 | 深圳市众进思创科技开发有限公司 | Method and system for split screen display of display information in equipment room |
| CN104639935A (en) * | 2015-02-04 | 2015-05-20 | 深圳华侨城文化旅游科技有限公司 | Method and device for manufacturing and splicing 3D (three dimensional) picture |
| 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 |
| CN104717438A (en) * | 2015-03-02 | 2015-06-17 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN105324992A (en) * | 2013-11-29 | 2016-02-10 | Cjcgv株式会社 | Method and apparatus for normalizing size of content in multi-projection theater and computer-readable recording medium |
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| CN110300314A (en) * | 2019-08-02 | 2019-10-01 | 北京海辰亿华科技有限公司 | A kind of video broadcasting method, apparatus and system |
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| CN108495102A (en) * | 2018-02-14 | 2018-09-04 | 中国科学院自动化研究所 | Splice the seamless spliced fusion method of multi-projector of emerging system based on Unity |
| CN111010552A (en) * | 2018-10-04 | 2020-04-14 | 精工爱普生株式会社 | Display device, display system, and control method for display device |
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| CN110753215A (en) * | 2019-11-15 | 2020-02-04 | 华东师范大学 | Self-adaptive projection fusion equipment |
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| CN112565723A (en) * | 2020-10-24 | 2021-03-26 | 北京博睿维讯科技有限公司 | Image fusion band display control method, device and system |
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| CN115379180A (en) * | 2021-05-17 | 2022-11-22 | 成都极米科技股份有限公司 | Projection picture adjusting method, device, equipment and storage medium |
| CN113506492A (en) * | 2021-06-28 | 2021-10-15 | 蕉乐教育科技(上海)有限公司 | Projection device and full-width piano keyboard picture projection method thereof |
| CN117041508A (en) * | 2023-10-09 | 2023-11-10 | 杭州罗莱迪思科技股份有限公司 | Distributed projection method, projection system, equipment and medium |
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