6

Do you expect the large image to be seamless, both in dimension and in tone? Each is a separate challenge. Color-matching 8 projectors can be daunting, depending on the technology. As a general rule, you would overlap the images from the projectors and feather their edges. This costs you something in size, with the benefit of disguising mismatches to some ...


6

The projector you have is for use with the Bell and Howell model 450 cassette recorder. This projector has no optical or magnetic means of playing or recording sound. IN this system, which is a "Double Sound System", the sound is recorded on the 450 player/recorder via a special cable that goes between the camera and the recorder. The film itself has no ...


5

As said by AJ Henderson and Jim Mack, you should just use one computer with multiheaded video. On an X11-based window system, you can use xrandr to organise the screen segments. Most operating systems have also GUI tools for doing this. The biggest problem will probably be the fine alignment. Most good projectors have settings for perspective correction ...


4

One additional option on Linux setup will be DMX: http://dmx.sourceforge.net/ If enough heads per machine can not be supported and the presentation data is relatively "slow", DMX will provide a single, ultra high resolution X11 display to an application and will automatically split the image between multiple "slave" X servers forming a unified display wall. ...


4

The easiest way to do this is multiheaded video cards. Many video cards support 3 displays and it is possible to get cards that support even more than that, particularly via DisplayPort (which allows for chaining multiple displays on a single connection). When using multiple displays in Windows, it will allow you to specify how they are arranged and ...


3

Since the pixel grid that the projector displays is a rectangular grid of rectangular pixels, how do you display something that isn't rectangular? Think about a pixel where the outline of the line falls half-way across it—half the pixel is in the line, and half out. How does that pixel display? There are a couple of ways of doing it. You could set a ...


2

As AJ Henderson mentioned, you program the Kinect with a PC using various software packages, either ones that support Kinect natively, or by using the Kinect SDK. One that we use often is Derivative TouchDesigner. There is a free educational version you can download and use for non-commercial work. Projector wise, I'd recommend something of at least 10,000 ...


2

if you are going for a more profesional look, and have the budget look into pandoras box media servers. They have functionality to not only edge blend multiple projectors, but also map the image onto any 3d object. you might need two of them in order to run 8 projectors but they are much easier to sync up than 8 individual pcs


2

You'd probably want to look for the following characteristics: Min and max projection distance (from the data sheet, make sure the projector can focus correctly for the desired distance) Lumen (some people recommend 500 lumen per square meter projection area, but of course, this also depends on your ambient lighting) Native image resolution (projecting on a ...


1

Update - this is the closest thing I've found, but you need to use Unreal and have a fast graphics card:


1

our existing 4:3 song slides (1024x768) The real resolution of a slide depends on the program and file format they are in. If the slides are in PowerPoint or similar, they have no native resolution, they have a proportion. If they are JPG files or a video, yes, you are stuck with the resolution. A projector has indeed a native resolution, if it is a 16:9 ...


1

The lumens of the projector is the primary indicator of how bright it is. Contrast ratio is also significant for determining how dark the dark pixels will be when bright pixels are bright, but a lot of that also depends on the type of screen you are using. The size a projector can project is determined by the overall amount of light it can throw. As ...


1

the previous post is essentially correct as I've used this filmosound8 system a lot in the past. do you have the original recorded cassette tapes, they're about 5 minutes long, to go with the 50 ft. length of a super 8 film. they contain the sound on one track and a (unheard) synch pulse on another, which when played properly governs that projector speed ...


1

If you place an IR-blocking filter in front of the projector and a IR-pass filter in front of an IR-sensitive camera and illuminate your objects with IR light, then the camera will see nothing from the projector, and you can color your contours with any visible light colors.


1

A Macbook pro would be about the most expensive device you could possibly use as a playback machine, but I'm guessing you didn't buy them for the installation… There are several devices that are designed specifically for the purpose of video playback, for example these units by Brightsign. They're used in the museum where I work, and are popular for retail ...


1

Since the resulting projected image is 3240 px wide, that's the size you should create. Then output two "halves" -- the leftmost 1920 px, then the rightmost 1920 px. There will be 600 px that appear in both parts. That's the overlap.


1

If the venue uses Christie Projectors; I believe the projection mapping development kit is free (for Christie Owners/Registered Units). I owned 2 HD 10K-M Christies for a while; and the projection mapping always intrigued me. The mapping capabilities are pretty incredible. Here is a sample video showing just how amazing the Christie Projection Mapping ...


1

I'd hate to answer my own question, but just wanted to share what I found in case anyone else is interested. PaintingWithLight has a feature rich demo that is very beginner friendly, and only costs a bit over $50 for a full license. Compared to other projection mapping software out there, this is an amazing bargain. VPT 7 is completely free and feature ...


1

With even the most simple projector, if part of the image is black, then nothing will be projected at that point, so why not set up your image to be: |(canvas1)| blank space |(canvas2)| blank space |(canvas3)| Deciding whether that space should be black, white or some other colour is down to you - do you want your real flowers lit? If so, make it a ...


1

You didn't specify keyboard, but sometimes it can be useful to switch USB along with the VGA signal. For this you'd want a KVM.


1

1 PC with many outs is usually easier to handle than multiple PCs. Do you have any specific software you're working with? Is it for an installation, or for general use? Do you have a budget you need to stay under? Are they all the same brand and model of projector? Tearing might also become an issue. As far as software goes, some have been mentioned above, ...


1

You are seeing the scan line of the projector. You need a camera with a screen sync feature in order to deal with the rolling shutter issue and depending on the technique used by the projector, it may not even be possible. What you are actually seeing is what the projector actually does, it's just that it happens too fast for your eye to perceive it ...


1

This question is the same, even with Kinect removed from the equation. The easiest way to work with a Kinect for custom work is to use it with a PC, so choose the appropriate projector for the room and lighting and then get the hardware to hook the PC up to it. Specific projector recommendations is likely too specific to the current time and is going to ...


1

Depending on your needs, it might be as simple as using the drivers that come with your system. I know that certain NVidia cards can make multiple video outputs appear as one single screen to Windows. In a case like that, it would simply be a matter or properly aligning the projectors (if they can handle the key-stoning themselves) A lens might be able to ...


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