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5

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 ...


4

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 ...


3

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. ...


3

Pixel frequency, also known as dot clock is referring to the bandwidth of the projector's controller chip. For a resolution a certain data rate is required to display all the data (not pixel frequency, see later) - it can be for example: A resolution of 800x600 at 60 Hz would require: 800 x 600 x 3 (RGB) x 60 Hz/2 (interlaced frame rate) = 43 200 000 ...


3

It's possible to amplify VGA for long runs, but since that's an analog signal it's usually not the best option. VGA over coax is probably more trouble than it's worth (you'd have to merge the many VGA channels somehow to use the single coax pin, and then reverse it). VGA over Cat5e is fairly common. You still aren't running an analog signal over 200ft, but ...


3

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 ...


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 ...


1

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


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 ...


1

In general: It depends on your signals and the signalchain. With your setup you will need at least a signalsplitter, a capture device, a capture machine and big harddiscs. But first you have to clarify whats the projector input? What components and wiring do you use? What's output of the presenter laptop? Etc. Then we can give you specific recommendations. ...


1

What I have done in the past is to use a DA on the output of the laptop. One output to the projector and another one to the recording device. The problem I faced afterwords is that in the chain I had a video switcher and, since we recorded both audio and video, the audio was noticeable ahead. That's a problem if you also have a camera recording the ...


1

I would look on Ebay and Craigslist since your requirements would be met by most projectors produced in the last 10+ years. Find one that suits you, and invest in a spare bulb (or two) while you're at it, since you might be buying a used item. Also, check out Slickdeals for clearance items, such as this BenQ DLP projector that meets your requirements: ...


1

On that particular specification page the *1 and *2 mean look further down the page at notes 1 and 2, which are as follows: *1: Varies depending on conditions *2: All brand names and product names are trademarks, registered trademarks or trade names of their respective holders. Lamp life specification is an estimate based on verification under proper ...



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