projector that can compensate for warped and moving surfaces. 
No matter what the surface, Christie has the right Twist solution for the project. 5 0 obj
This is especially crucial when setting up Meshes for a softedge projection as the pixels must overlap each other exactly in the overlapping area. Before you start moving the control points you have to decide with how many FFD control points and Mesh segments you want to work.
Especially for fixed installations, EDID Managers guarantee, that the resolution and frame rate do not change due to a unforeseen shut down, power loss etc. If you do the blending in Pandoras Box, the overlap (at the smallest distance!)
0000046983 00000 n 0000003178 00000 n endobj For this example, let's assume it is not possible to align the projectors better so the above image shows the starting point for the warping process. movie are warped by being applied to a regular mesh consisting of vertices and texture
Further down it is explained how to calculate and measure the overlap in meters. Too many FFD points are not that bad, you simply spend more time in the FFD-phase but you could save time during the Mesh-phase - at least if not way too many FFDs were picked. 204 0 obj
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Edge-blending technology solves that problem. 
A standard practice when using multiple projectors is to overlap the seams where each projected image touches another. In the example above both warp and blend are used to achieve a seamless, blended picture from two projectors illuminating a curved screen. Stress Management Score Do what's best for your body.
See diagram 1, We cannot move the left and right side in, because this distorted the final aspect ratio. More overlap eases the softedge process but the larger the projected image is zoomed and the more pixels are "outside" the screen, the less resolution you have "on" the screen. Powerful PIP/POP functionality, allows PIP (sub) images to be placed in any location and in any size on the projection-blended installation, with POP images able to be placed side-by-side or top-to-bottom. Different colors and gradients help during the softedge process. endobj The next chapter features a warping tutorial. horizontally and vertically, then the point p in normalised screen coordinates would In our example, the output resolution is 2048px. The modularized UD100 series makes 4K projectors edge blending and warping more affordable and user friendly. ",#(7),01444'9=82. 0000045248 00000 n The UD101 boasts one module, with the UD102 offering two, the UD103 three, and the UD104 four modules. 0000021097 00000 n With this technique a filter is inserted on the edge that fades the image from 100% light strength (luminance) to 0% (the lowest luminance depends on the contrast ratio of the projector). Click below video to watch UD100 demo with Epson 4K enhancement projectors. The amount of Mesh segments can be altered as long as working only with the FFD control points. Then you are flexible and prepared for the worst case as you can prepare or edit test images that fasten your warping work significantly and increase the quality of it. `Y1@sw/T,L^s}Ry1B6cpm%)8@% 4":;nd;32n{6~~m&YHX%b$0QE,4R0UpbT#r9_?LG9%nx(:6[;(C!w>:r-8r=}gfqHdHhkYE]64| p 0vtt@#-- &tteC#@RJ@`lU qE\?s-X_"jA?acvp~h!5p\\fn3 yY(7$ b6&FDR4ctt+~* D} G-z)=FrG"pTh3sM?_<. It all starts with your 6-month Premium membership1 and Daily Readiness2, a score based on activity, sleep and heart rate variability (HRV) that helps you optimize your workout routine. <> There are a number of ways of correcting for this, for the lens in question This effect can be of advantage or disadvantage. Christie Pandoras Box This versatile and reliable media server is capable of handling any 2D or 3D projection installations using Christie or third-party projectors. <> 0000045173 00000 n Please keep also in mind, that the PB Client software should be closed and restarted when graphics card settings are changed. In those scenario your goal is to get the mesh lines parallel and with an equal distance. It supports each output of up to true 4K (40962160@60hz). 2 0 obj hb```b``?AX,1/{z-Ka The ability to manage arrayed projectors to display virtually any image, anywhere is made easier with Christie Twist. One solution would be to blank both areas. If you divide 256px with the projector resolution and multiply this with 100%, you get a more handy percentage number, e.g.
Alternatively you can also work with textures that show different grids as explained above under "Test Pattern". For the depicted example, this would be the hatched area. (Go to the bottom to check *4K support projectorsfrom our partners)However, when combining multiple 4K projectors, its critical tomake sure the edge blending and warping solution you choose is capable of supporting 4K output on projectors. Many projectors have internal grid test pattern that can help finding a nice overlap; simply count the horizontal grids and if you know, that the overlap is 25% it's obvious that at least a quarter of all grids must overlap each other. But the system relies on a camera that can see a grid applied to objects, using infra-red ink thats invisible to the human eye, and track how its warped in real time. The curved outline of the Mesh is the result by only moving the FFD control points. The following two paragraphs explain this in more detail. This chapter covers warping questions related to the Mesh Editing Mode in the Pandoras Box Preview and the warping process in general. Up and running in no time. <>
Using a matrix of projections projected to a single screen to present a seamless large scale, single image. endstream Each Mesh consists of horizontal and vertical lines anyhow so you can also orientate the warping by these lines. Call a Specialist Today! 4K support projectors:Canon Xeed 4K seriesNative DCI true 4K resolution, laser, 6000lm, interchangeable lenses.Epson EB-L1755U: WUXGA resolution with 4K enhancement technology, laser, 15000lm,interchangeable lenses. 0000021221 00000 n For more intricate projects including virtual caves and domes ChristieTwist Prodelivers unlimited arbitrary placement points for greater accuracy. This requires a higher Mesh count. This differs from application to application.
Minimal performance impact and no incremental latency.
0000102274 00000 n % With the rougher Mesh it is easier to see and get equal squares whilst moving the FFD points. jYo9:&dAvwSfpvpEhf\Y&o)wUUiu{9,>qSx?|>9SX*Zsub(P7qSEB~,SY^^,Y%. So besides being used to create jaw-dropping YouTube demos, what other uses could there be for this technology? Without markers you can only rely on your optical perception and depending on your position, the projection and surface it can be very hard to see whether a line is really straight, whether a grid is uniform and whether distances are even. Besides, with native supportinput ofup to 8K2K@30hz capability across thecomplete range of Geobox, it has never been so easy to seamlessly blend two true 4K outputs onprojectors and displayone 8K/2K image. 0000044691 00000 n Embedded multi-viewer feature allows up to four split views to be created in each output channel. 0000001396 00000 n The information from the sensors is sent to the software so that it can analyze the data and calculate the curvature of the projection screen. Precisely control the geometry of single or multiple projectors through an easy-to-use grid point/mesh interface. trailer <]/Prev 432627>> startxref 0 %%EOF 258 0 obj <>stream
Now only one Mesh point is moved. At the other end of the spectrum, imagine the ads and sponsors on an athletes jersey continuously changing throughout a game. 0000021367 00000 n
Shanghai Public Network Security: No. Before the warping process can start, you need to make sure, that the projectors are setup correctly. For measuring the screen, the overlap or projection area, or the center of it, it might be needed to place markers on the screen. If too little points are chosen it won't be possible to apply the detail changes that are necessary. While a fisheye is defined for any field of view, for Apply warping to any scenario that requires image geometry corrections such as rotation, skew, mirroring, offset, and geometry mapping. To the human brain, it looks like its happening in real time. 0000021442 00000 n GeoBox new UD100 seriesis Worlds first hardware solution for full control of true 4K projectorsedge blending and warping. 0000043301 00000 n warping texture mesh, the eventual goal being to determine the corresponding
0000002672 00000 n S N)fqTl56il2sp3}epaReac8)x!!2|"xN3f0T23000Lb(ge0 b:hR)e`7Pc&a,Bf2d0/ _!Q1U:aL&9lV K9 endstream endobj 205 0 obj <>>> endobj 206 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text]/Properties<>/Shading<>/XObject<>>>/Rotate 0/TrimBox[0.0 0.0 595.276 841.89]/Type/Page>> endobj 207 0 obj <> endobj 208 0 obj [/ICCBased 218 0 R] endobj 209 0 obj <> endobj 210 0 obj <> endobj 211 0 obj <> endobj 212 0 obj <>stream This is because Pandoras Box always refers to the horizontal width, so any new aspect will always cover the horizontal width and the height adopts. (3D) it represents from the lens. 0000044021 00000 n The softedge area refers to the smallest area where two projectors overlap. <> hemispherical projection using a spherical mirror, that is, the frames of a fisheye
This adds a latency to the display system that could be a problem in simulators that need fast response time, for instance fighter jet simulators.
Max Planck Institute for Biological Cybernetics. There is a wide choice of different laser solutions; many operators prefer using cross line lasers with tripods. In the best case, you have at least one background image that suits the needs of a test pattern. the form of a fit to a polynomial. Same as all the other GeoBox solutions, its truly solid-state design, requiring no PC software, having all the advantages of pure hardware solution (Top 10 reasons you should use hardware edge blending solution), and is perfect for installation application. There are several techniques to auto calibrate the warping by projecting a pattern and using cameras and/or sensors. endobj If you have picked too less FFD points you will notice that you will have to move Mesh points at a very early stage of warping. Now, let's look at the possibilities regarding the aspect ratio for projections without preplanned content that matches the screen. Christie Twist Premium and Twist Pro are paid upgrades and provide additional functionality for more complex projects. Warp is used to modify geometry so that it matches the curve of the projection wall. The time that you invest in measuring and marking important points will pay off later as the warping itself will be easier, faster, less sensitive to errors and most likely result in a better quality. This requires a knowledge of: The first step is determining the vector from the fisheye corresponding to any may need to correct for non-ideal fisheye lenses). Our forum community is where Developers can ask questions, share experiences and participate in discussions with NVIDIA and other experts in the field. 0000046508 00000 n It supports each, output of up to true 4K (40962160@60hz). To make it possible to cover a dome with a 360 degree view you need to use several projectors. The sub folder "Testpattern" includes different test images in all kinds of resolutions. This processing unit was inserted between the graphics card and the projector. At this point the FFD is not sufficient any more as it affects large areas of the grid. 0000021336 00000 n The problem is to know how the image should be warped to look correct on the curved screen. 3 0 obj 0000045142 00000 n stream of the dome then potentially no image warping is required (although see later where one Within the softedge area the pixels from both projectors must overlay perfectly. endobj width divided by the frame height. the domes position, size and orientation, and the vector P above. More and more projector brands releasetheir 4K resolution support projectorsfor customers who are looking for thebestimage quality. Visiting: De Donge 17 5684 PX Best The Netherlands, Top 10 reasons you should use hardware edge blending solution, 4K input and output video wall controller world first, Video wall controller: Top 10 reasons why using it, GeoBox G901 4K60hz input and output processor is now available in Europe. Hence the ideal test pattern should be 2048x1644px according to this calculation: 2048 / 233 * 187. stream NVAPI is NVIDIA's core software development kit that allows direct access to NVIDIA GPUs on windows platforms. If you do the blending in Pandoras Box, the overlap should be a minimum of 256px due to the internally used 8bit gradient. Hence you have a very good basis when starting to work with the Mesh where the higher Mesh count might be needed because of details in the structure or an overlap with another projector. Simply measure the "on-screen" width depicted with the red and blue arrow and enter this with the on-screen height in the Inspector. 0000041819 00000 n This includes the physical projector position as well as settings like lens shift, zoom and focus. (Go to the bottom to check *.
The green lines represent the Mesh, the orange lines the FFD. This can be done in real time by inserting the softwarp as a last step in the rendering cycle. In addition, it is easier to obtain a good quality Mesh with FFDs instead of offsetting single Mesh points too far. In regards to quality and final resolution, it is always better to spend time with positioning the projected image using the available hardware tools in difference to correcting a bad position with too much warping and masking. Traditionally, warp and blend operations are done with custom hardware using features built into the projector or with direct modifications to an application. A problem with using several projectors on the same screen is that the edges between the projected images get about twice the amount of light. 31010702007170. Given this position on the dome, we know how the fisheye should map to that. If q is the intersection on the dome then the texture coordinate (u,v) corresponding
Show multiple, edge-blended images and create warped displays, quickly and easily, on any projection surface. 0000042684 00000 n 0000041703 00000 n This piece of gear is already in your quote request. 2000px, you can either scale the Layer with the factor 2048/2000=1.024 or reduce the Z-distance from the camera to the Layer. here the manufacturer provides the radial correction required, this is in Its a technique known as projection mapping, and is similar to how textures are applied to 3D models in a video game. Information presented on this site is continually updated and is subjected to change without notice.
In what follows, the means by which one calculates the image warping required to At a basic level, it could make setting up a projector at the office dead easy as you wouldnt have to fiddle with keystone or image adjustment settings to match your screen. A simply bend screen will go well with only 3 vertical FFD control points. The further the warping process develops the more it is necessary to apply changes to particular pixels only. See here the differences between moving a FFD control point and moving a Mesh point. Now only one Mesh point is moved. How you place markers or how many you need can not be answered in general as this depends on the projection, the environment and your personal preferences and skills. Position-wise, the projected images obviously need to cover the screen entirely. Done poorly, the display from multiple projectors will show a visible band where the projected images overlap. Curved screens that are more complex will be easier to handle if you increase the amount of FFD control points. They require to increase the amount of vertical FFD points as well. Setting up FFD Control Points and Mesh Segments. Guardian monitors a blended projection system for any misalignment, automatically calibrating the image in real time, quickly, invisibly and without interruption, even when content is playing. If you would like to practice this to get a better understanding, you can do this also with a small projection, for example with one projector on a piece of paper. roughly 13% for HD resolution and 25% for XGA. the projected frame, that would not normally be the case. The perfect amount depends on your screen surface and outline. outlined here. This is also possible when the content was prepared with a certain aspect ratio. a 180 degree fisheye the relationship is: If p is a pixel in fisheye image space then it corresponds to vector P in 3D space 0000003928 00000 n Only the segment lines between the moved point and the four neighbor Mesh points are affected by this. For blending both projectors, it is important that color and brightness are equal. This shows the grid without any editing. Lastly, you can use a laser distance meter for temporary markers. For all other cases it is Ideally, you should check that the Client's output settings are reported correctly to the Master. Cost-effective software playback and control, Our award-winning high-performance link between visual displays and digital image compositing, Compact media player featuring up to two 4K outputs, See how Christie technology is being used to create stunning warped and blended displays. 0000002168 00000 n endobj Download the Warp and Blend programming sample package to get started developing with warp and blend and NVAPI. For the blue projection the same criteria apply, laterally reversed of course. Pandoras Box > User Interface - Master > Tabs Overview > Preview > Mesh Editing Mode>. 0000008757 00000 n The appearance of banding is eliminated and a single image is created across the screen. If nx and ny are the number of vertices in the warping mesh, In this case there are 6 horizontal control points and still 3 vertical ones. When done well, a single display using multiple projectors produces large, bright, high-resolution images. %PDF-1.4 % Advanced users can also adopt the pixel conversion factor under Configuration tab > Unit Management.