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Today's technology allows for many presentation options that were not possible even five years ago. One such presentation method is overlapping projection images on an ultra-wide projection screen which makes the projected image become the backdrop. Usually, sets range from simple drape to elaborate hardscapes with the projected image placed either off to both sides or roughly incorporated into the set. With edge-blend the presentation image area disappears or moves across the backdrop and allows the backdrop itself to change, even animate. See an animated example here.
Here's how we do it.
One of our screens, for example, is a sixty foot wide by fifteen foot tall rear-projection surface that is actually wider than the HDTV format of 9:16. We can actually put two HDTV images side-by side on our screen.
We split the image into thirds through digital processing and use three off-the-shelf projectors to project the segments onto the screen. The images overlap slightly with the overlapped areas sharing common picture data.
If projected normally the overlapped areas would combine brightness and appear brighter. In the digital processing we dim the edges of the blended projected images so that a seamless image appears. Since the source is still one image that has been split, we can manipulate the original image and hence change the entire image.
What you see above is one image taken apart and put back together. The image can change, animate, and even have images placed on "top" of the image by using the "Picture In Picture" (PIP) function similar to most big screen televisions. As you can see below, the possibilities are infinite. Illustrated is the screen, pipe and drape to either side, and a stage in the middle.
And here are more examples:
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