Dara My Time Mp3. Vpn Master Windows. Curved projection screens also introduce image distortions that can not be simply calculated using the standard projection calculation tools based on flat projection. Pixelwix Pixelwarp projection calculator software is an essential and must have tool for designing single or multi-projector displays on all screen and room shapes. My Personal DIY Curved Screen - Part 1. First I have to correct something from the previous post, in this picture: “Length of overlap” is not correct since the projector will have a bit of keystoning. You do not want to use any keystone correction. Keystone adds latency since the picture has to be processed by the projector. At the click of a mouse, the camera-based software automatically aligns, stacks and blends multi-projector systems in minutes, with unsurpassed accuracy. Get started with our Mystique Lite software for simple setups. A powerful optional feature of Mystique is Christie Guardian. Guardian monitors a blended projection system for any misalignment, automatically calibrating the image in real time.
360-degrees of Ultra High-res, 3D Immersion for 100 of Your Closest Friends
Over one hundred people at any given time can experience fully immersive, active stereo (3D) content in the 21st Century Cyclorama, designed and engineered by Milwaukee-based immersive projection design company, The Elumenati.
For over ten years, The Elumenati team has built a reputation as pioneers in immersive technology. A broad range of artistic, commercial, and educational clients, such as NASA, NOAA, Cirque du Soleil, and DreamWorks use Elumenati domes, projection systems, interactive software, and custom installations. In 2013, a private client asked the team to create an experience comprising a 42-foot by 15-foot tall, 360-degree space to enthrall over one hundred visitors at any given time with dynamic, high-resolution, stereo content. The 21st Century Cyclorama reflects The Elumenati's design philosophy of building cutting-edge environments that are as efficient as they are elegant.
'It’s a giant 3D theater that wraps around you in all directions,' says Hilary McVicker, VP of Sales and Marketing at The Elumenati. Four edge-blended projection channels fill the space with active stereo content, while allowing guests to stand as close as 4 feet from the screens without casting shadows. Digital Projection's (DP) TITAN WUXGA Quad 3D, 3-chip DLP projectors were chosen to project high-resolution stereo imagery with beautiful color in the large space.
'We chose to work with DP because their products have been extremely reliable over the years, and they’re always open to engineering collaborations, allowing us to build projection systems with optimal image quality,' says McVicker. Four Elumenati OmniFocus 30620 projection systems were used, combining the strengths of DP's TITAN projector with a 600 series fisheye lens developed and engineered by The Elumenati. Each projector offered 20,000 lumens brightness, with a total resolution of nearly 8K across the 360-degree space.
Experience First, Technology Second
'It doesn't matter how cool the technology is, what the audience remembers is the overall experience, and the story our clients are using the technology to tell,' McVicker says. 'The projectors are edge-blended in a way that concentrates brightness and resolution in the areas where the audience naturally tends to focus. We worked with the client to place the most important parts of the content in that space, so the most dynamic imagery was happening in the place where the image looked the sharpest and had the best color saturation.'
To create a fully immersive experience, it is critical that the technology is not obtrusive. The four projectors with fisheye lenses are mounted on a truss just above the curved screen walls. 'With the fisheye projectors, you can stand very close to the screen without casting a shadow,' says McVicker. 'People can move around naturally without having to stay in one spot or avoid certain areas.'
Simple and Effective
To support edge-blended stereo with multiple projectors, Elumenati created a custom version of Omnity, a plugin for the Unity3D game engine based on their OmniMap geometry correction software. 'This lets us run all of the content through a single computer instead of four,' explains McVicker. 'It's a single content channel that our software splits into the four projector outputs and projects onto the curved screen with edge-blending. It greatly simplifies the content creation process for our clients.'
Completely Immersed
The Cyclorama space is an Elumenati OpenDome Panorama, 42-feet in diameter and 15-feet tall. The semi-permanent structure features a metal frame and a fabric screen with Elumenati’s patented dual-pressure technology. 'There's a screen at the back of the screen that is pulling air back, and sucking the screen tight against the shape of the panorama,' McVicker says. 'We design screens in all sorts of shapes and sizes. The type of dome depends on the experience you want to create as much as the space where you are putting it.'
Guests in the Cyclorama wear Volfoni's Edge 3D glasses, bringing the stereo content to life. “The audience emerges from the 21st Century Cyclorama talking about the amazing experience of being transported to another world, if only for a moment,' concludes McVicker.
Equipment list and specs for the 21st Century Cyclorama:
Four Elumenati OmniFocus 30620 projection systems: Elumenati 600 series lens with Digital Projection Titan Pro WUXGA Quad 3D projector
• 3-Chip DLP
• Resolution: 1920 x 1200
• Brightness: 16,000 lumens
• Active stereo with Volfoni's Edge 3D glasses
Elumenati OpenDome: Negative-pressure fabric-screened panorama in six, 60-degree sections
• 42' diameter; 15' tall
Elumenati image generating laptop
Content creation enabled by Elumenati's Omnimap geometry correction software, custom-created to support edge-blended stereo with multiple projectors
Photography © Dr. Clement Shimizu, The Elumenati
Image warping (geometric correction) is used to make an image look visually correct when it is projected onto a non-planar screen.
Image warping (geometric correction) is used to make an image look visually correct when it is projected onto a non-planar screen. This process is also referred to as distortion correction or geometric correction. The image is warped so when it is projected onto the screen it is visually correct.
Forms of image warping can be found in many projector models, with a function known as keystone correction being the most common. Keystone correction (trapezoidal in nature) is used when projectors have been mounted at an angle (generally pointing down from a ceiling to a screen), and the opposing angular correction needs to be applied in order for the image to be correct. Whilst most current projectors offer this feature, in many areas, advanced functions are required. For example, advanced off-axis correction and projection on curved and other unusual surfaces. For these applications, geometric correction tools such as ImmersaView Warp can be used.
Areas where geometric correction is required include:
- Advanced off-axis correction where projector placement is awkward and needs an advanced mapping over the keystone function in a projector
- Non-planar screens such a curved screens and hemispherical domes
- Projecting one image from one projector onto more than one surface
- Unusual projection applications onto custom designed screens
Figure 2: An example of a linear correction onto two planar walls.
Figure 3: An example of an advanced off-axis correction.
Figure 4: An example of spherical correction.
To describe the process of geometric correction in greater detail, we have taken the example of projecting onto a curved surface. For cylindrical and spherical screens, variations of barrel and pincushion correction functions are required to correct the image. The exact mapping will be dependent upon the optical characteristics of the projector, the screen’s size and shape as well as whether the imagery is front or rear projected.
Geometric correction can be performed with some special high-end projectors with advanced modules, but they are not common and tend to be expensive. There are also external electronic devices which can compensate for any geometric correction, but these also tend to be expensive.
Recently with advances in computer graphics cards, software solutions can now offer the ability to perform geometric correction. One such tool is ImmersaView Warp. This method provides a user with a number of control points which can be increased/decreased depending upon the complexity of the screen shape (see Figure 5). These control points can be manipulated by the user so an image is aligned correctly to a screen.
Figure 5: Control points for included for image warping.Projection Calculator Software For Curved Screens Reviews
Typically, when a standard projector is used on a curved (cylindrical) screen, the image gets a characteristic “smile” shape (see Figure 6). To overcome this we need to use the control points along the top and bottom of the image to pull the image back down into shape. Because the pixels in the middle of the image will be bigger than the pixels at the edges, we compensate for this by dragging the control points near the center of the screen closer together. This tells the software system that these parts of the screen are further away and it automatically adjusts. ImmersaView Warp displays a checkerboard, which helps to create the right image warping pattern. When all the checks in the checkerboard look the same size, the distortion correction is correct.
Figure 6: Characteristic smile distortion when projecting onto a cylindrical screen.Curved Computer Screens
There are also other screen shapes that can be produced from complex curved and flat sections. One example of a linear based display is a wedge, composed from two flat screens. Here a single projector can be used with two advanced keystone correction patterns to project onto a single screen. Figure 7 shows an example of the pattern needed to rear project onto a convex wedge screen. To create these shapes the distortion systems need to be told that they are dealing with flat sections and rather than curved screens.
Figure 7: Projection map onto a two linear screens from one projector.Projection Calculator Software For Curved Screens Free
