projector image warping

2022.07.31
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projector image warping

projection realtime warping navigation 4x3 spherical warped mirror 0000042684 00000 n 0000044691 00000 n Dismiss, More and more projector brands releasetheir 4K resolution support projectorsfor customers who are looking for thebestimage quality. This differs from application to application. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 595.32 841.92] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 0000047338 00000 n The left side needs to be shifted in such a way that the squares in the test pattern stay even. GeoBox new UD100 seriesis Worlds first hardware solution for full control of true 4K projectorsedge blending and warping.

endobj Click the images to view a full size image of the Christie Twist software. When the displays are rotated at odd angles or the display surface is an irregular shape, multiple projectors need to overlap, blend together and be mapped or adjusted to the display surface. projector that can compensate for warped and moving surfaces. ChristieTwistand Christie TwistPremiumare ideal for live theater and events, projection mapping, tradeshows, large classrooms, corporate boardrooms, museums, houses of worship, casinos and entertainments facilities, and more. Now only one Mesh point is moved. 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 The more warping projects you have done, the faster you will be able to tell the best FFD and Mesh count. %PDF-1.4 % 840x2 bu50nst ansi warping lumens probeam 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. 0000021442 00000 n Alternatively you can also work with textures that show different grids as explained above under "Test Pattern". Traditionally, warp and blend is integrated into the projector or done using custom hardware appliances which adds performance delay to the display pipeline.

For measuring the screen, the overlap or projection area, or the center of it, it might be needed to place markers on the screen. 0000044372 00000 n 0000045985 00000 n Draw an area on the paper and try to find the best and fastest way to project an image there using the above explained workflow with the Camera Inspector. endobj

For blending both projectors, it is important that color and brightness are equal.

It supports each output of up to true 4K (40962160@60hz). This is especially crucial when setting up Meshes for a softedge projection as the pixels must overlap each other exactly in the overlapping area. Our experts can help you find the best Christie image warping and edge blending tool to match your requirements and budget.

GPUs also bring additional benefits to warp and blend: The Operational Based vision Assessment (OBVA) Simulator at NASA.Image courtesy of NASA, A 1:5 scale, blank canvas model car with cars features projected onto the surface of the model to replicate a photo-real, physical object for real-time interaction and customization.Image courtesy of Christie Digital. If you would like to, you can save the current project and have a quick look whether a new Mesh with more FFDs does give you better results and eases your work. Christie projection mapping helps communicate the Coastal Crisis. 0000041303 00000 n 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. The Warp and Blend SDK provides an easy way to bring this functionality to any application with minimal performance impact and no incremental latency. the domes position, size and orientation, and the vector P above. An ideal (mathematical) fisheye projection is characterised by a linear relationship If you divide 256px with the projector resolution and multiply this with 100%, you get a more handy percentage number, e.g. To the human brain, it looks like its happening in real time. Hint: Some operators prefer to reset the projector to the factory settings before they start working as this makes sure that no hidden setting is overseen. Simply measure the "on-screen" width depicted with the red and blue arrow and enter this with the on-screen height in the Inspector. The softwarp can be used to project virtual views on curved walls and domes.

It is also worth, to get familiar with the Mesh count setting.

If the screen is quite flat itself but has a very detailed outline, it could be a faster solution to create a mask instead of increasing the Mesh count. For the depicted example, this would be the hatched area. Christie Twist Embedded in many Christie projectors Christie Twist lets you expertly edge blend and stack multiple images seamlessly on any 2D or 3D surface. The default distance is -3000px, so the new distance would be -3000px / 1.024 = -2930px. $.' Your score comes with personalized activity recommendations: low means go easy and recover--light yoga, deep breathing--while a high score gives you the green light to go all out. 2022 Christie Digital Systems USA, Inc. All rights reserved.

If all the displays are aligned in a grid with no overlap, features like Mosaic make it easy to create a single unified display from multiple physical displays.

While a fisheye is defined for any field of view, for

lines (longitude) are straight, and lines of latitude are perfect circles. 6 0 obj By the way, it could be helpful to work with Mesh segments that have the same height as width because it is easier for the warping operator to see whether squares (in difference to rectangles) are equal. The whole Mesh is affected by this change: the horizontal lines are bend together on the top left side, the Meshes outline gets curved. Get access to the latest software releases and tools and receive notifications and invites to join special developer events, early access programs and educational webinars. Lufthansa presented its new logo to guests with an amazing show and stunning projection mapping on the tail of a Boeing 747-800.

However, sometimes it is needed to calculate (or check) the overlap very exactly or maybe you would like to place markers and you need a number in meters that you can measure.

If you really want your imagination to run wild, this technology could even facilitate a crude version of Star Trek: The Next Generations holodeck, projecting custom outfits onto users who never need to change, and dynamically mapping images over every object in a room to change their appearance based on a simulated event. <> in this idealised case the fisheye circle extends to the whole width of BenQ LK953ST: 4K UHD resolution, laser, 5000lm, fixed short-throw ratio lens.

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. 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.

Only the segment lines between the moved point and the four neighbor Mesh points are affected by this. Advanced users can also adopt the pixel conversion factor under Configuration tab > Unit Management. It also makes it easier to measure the screen and place markers. The curved outline of the Mesh is the result by only moving the FFD control points. 0000043670 00000 n Do what's best for your body. Done poorly, the display from multiple projectors will show a visible band where the projected images overlap. Free Shipping! YQ4M! &8.JJ#]k,7weuKe7$bnWW0[aAqs p"hQ`300XF?A5nn5]l)Sw'I9O@dL$: 0pRH8XDM@2@gLkq@TjeN@$g} 8Dfl^ *:cfAJj_Mbd8eO5lbmuYC+U`2S#j_"xoj in such a way such that the result looks correct on the dome. The top left FFD control point is moved further down. An ideal (mathematical) fisheye projection is characterised by a linear relationship 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. such that the whole surface of the dome is illuminated and done so with an If your projector has an aspect ratio of 16:9, you could set up a Mesh count of 16 by 9 during the FFD-phase and increase it to 32 by 18 or even 48 by 27 before starting the Mesh-phase. 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. stream

outlined here. [Ishikawa Watanabe Laboratory via Twitter - Kert Gartner]. 0000047263 00000 n Copyright 2000new Date().getFullYear()>2000&&document.write("-"+new Date().getFullYear());. The Christie Twist product family includes three tiers of specialized software with each version tailored to specific needs: from simple flat screen multi-projector warps and blends to highly multifaceted applications. The area that is now seen by the camera is exactly the area that needs to cover the screen. They require to increase the amount of vertical FFD points as well. 0000041637 00000 n 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. Computing the intersection of this line with the dome can be achieved by using the

% Adjust intensity and black level in portions of a screen, every pixel if desired. The PanoLab is a wide-area high realistic projection system for interactive presentations of virtual environments. 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. In those scenario your goal is to get the mesh lines parallel and with an equal distance. SOFTWARE DEVELOPER KITS, SAMPLES AND TOOLS LICENSE AGREEMENT, Windows 7, 8, 10, Server 2008R2, Server 2012, NVIDIA Quadro 1200 class or higher products with Fermi, Kepler, Maxwell or newer GPUs, Generate a seamless image on up to 16 displays or projectors with warp and blend using. Even though it is not absolutely mandatory to do this, you will notice very fast that markers help a lot during the warping process. Ideally, you should check that the Client's output settings are reported correctly to the Master. `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 0000021221 00000 n 0000045067 00000 n 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. This requires a higher Mesh count. In general, the amount of Mesh segments depends on how exact the warp needs to be.

Needless to say, it makes sense to use images as test pattern that cover the entire projection area and match the resolution of the content used in your show.

Most lens do not have such a perfect linear relationship, those that do are sometimes The position of the projector with respect to the dome. Whilst the next chapter explains step-by-step the practice, this chapter is all about the theory. 0000002066 00000 n between the radius "r" of a point on the fisheye image (2D) to the angle phi of the vector Hence the ideal test pattern should be 2048x1644px according to this calculation: 2048 / 233 * 187. texture coordinate. 0000003329 00000 n Since the pixel information is already available to the GPU, the GPU is the natural place to do this work. on the axis of the dome. NVAPI is NVIDIA's core software development kit that allows direct access to NVIDIA GPUs on windows platforms. Using the vector from the fisheye lens the next step is to relate that to The exact technologies that give this projector its impressive abilities are undoubtedly a closely guarded secret. Before you start moving the control points you have to decide with how many FFD control points and Mesh segments you want to work. With the rougher Mesh it is easier to see and get equal squares whilst moving the FFD points. Many operators prefer to change the Mesh color for different outputs using the Inspector for the according Sub Mesh and its setting "Editing Wireframe Color". optimal use of the available pixels. Example 1, a 4x3 FFD

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. trailer <]/Prev 432627>> startxref 0 %%EOF 258 0 obj <>stream (Go to the bottom to check *. There is a wide choice of different laser solutions; many operators prefer using cross line lasers with tripods. To make it possible to cover a dome with a 360 degree view you need to use several projectors. warping texture mesh, the eventual goal being to determine the corresponding Softwarping eliminates the latency. If you start with this workflow, it makes much sense to use a test pattern in the aspect of 233:187 and the total width of the output resolution. Works in single screen, multiple screens and multi-gpu configurations. may need to correct for non-ideal fisheye lenses). Each Mesh consists of horizontal and vertical lines anyhow so you can also orientate the warping by these lines. Our sales representative will be in touch with you shortly to give you an offer. Get started with our Mystique Lite software for simple setups. This piece of gear is already in your quote request. The top left FFD control point is moved further down.

Lastly, you can use a laser distance meter for temporary markers.

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The following outlines the steps for determining how to warp a fisheye With4K projector, you havedoubled pixels on the image comparing to WUXGA or FHD projectors, sotechnically, pixel pitch is finer and thatallows for improved imagery from shorter distance or on larger projection size. 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. 0000016522 00000 n the physical geometry/optics in the dome.

A powerful optional feature of Mystique isChristie Guardian. 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. 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. coordinates. code found here. The video signal from one projector is gradually faded out through the banded zone, while the adjacent projection or channel is faded up. See diagram 3. As a rule of thumb, at least 7 Mesh segments should lie within the overlap area.

Using a matrix of projections projected to a single screen to present a seamless large scale, single image. Pandoras Box > User Interface - Master > Tabs Overview > Preview > Mesh Editing Mode>. If you choose for example a red Mesh for one output and a green one for the other, it will become much easier to warp the overlap as both lines add up to a yellow color. Go to the Configuration tab > Render Engine and select the Client in the top drop-down list. In the depicted example a Mesh with an 5x5 FFD is shown. It supports each, output of up to true 4K (40962160@60hz). At the other end of the spectrum, imagine the ads and sponsors on an athletes jersey continuously changing throughout a game.

This paragraph describes the difference between a Mesh point (Vertex) and an FFD point, thus it is covering a fundamental function of the warping process. The ability to manage arrayed projectors to display virtually any image, anywhere is made easier with Christie Twist. 0000011406 00000 n will be implemented. This will definitely be more time-consuming than starting all over with a new Mesh. There are several techniques to auto calibrate the warping by projecting a pattern and using cameras and/or sensors. AutoStack Premium lets you project onto curved or cylindrical screens and portrait orientation displays. (Assumes 180 degree fisheye and lens pointing down the y axis). 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. You will see quite fast, that you have picked too many or too less FFDs.

<> Our forum community is where Developers can ask questions, share experiences and participate in discussions with NVIDIA and other experts in the field. 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). edge blending and warping. The next chapter features a warping tutorial. Twist gives you software options for warping and blending on all Christie 3DLP projectors and most Christie HS Series 1DLP laser projectors, allowing pixels to be mapped more easily onto any projection surface, maintaining proper geometry and accurate pixel-t. o-pixel alignment. Spherical screens are bend in all directions. Navigation: Example 2, a 6x3 FFD The further the warping process develops the more it is necessary to apply changes to particular pixels only. movie are warped by being applied to a regular mesh consisting of vertices and texture Check out the forums here. Click below video to watch UD100 demo with Epson 4K enhancement projectors. The warping can be verified by ensuring the pole is at the right place, radial Warp and blend is implemented as an interface in NVAPI that programmably exposes warping and intensity adjustment features before the final scanout. between the radius "r" of a point on the fisheye image (2D) to the angle phi of the vector

Automated camera-based alignment software. Precisely control the geometry of single or multiple projectors through an easy-to-use grid point/mesh interface. But this projector works in the real world, on almost any irregular object, even those with a non-rigid surface. Call a Specialist Today! referred to as f-theta lenses. For the blue projection the same criteria apply, laterally reversed of course. If q is the intersection on the dome then the texture coordinate (u,v) corresponding required in order to achieve a correct undistorted image in the dome. This processing unit was inserted between the graphics card and the projector. The following two paragraphs explain this in more detail. 0000043301 00000 n The non-linearity is usually most Fitbit Charge 5 + Premium connects the dots between your activity, sleep and stress so you can make the best decisions for your body, mind and health. (3D) it represents from the lens. cf v_axApA$5$m&w:e}?O"%yNz]`ic

Clickherefor more information aboutUD100. 0000045173 00000 n 0000021097 00000 n Warp is used to modify geometry so that it matches the curve of the projection wall. In the tutorial we do not use custom test pattern but keep working with the default ones which requires one more adoption.

dome is where the point in the image plane will appear. No matter what the surface, Christie has the right Twist solution for the project. As explained above under "Aspect Ratio", it is also possible to use the aspect ratio of the Camera or on-screen area, respectively. 0000046326 00000 n

0000004554 00000 n roughly 13% for HD resolution and 25% for XGA.

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Up and running in no time. (3D) it represents from the lens. 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.