Firstly, let's break it down to basics, because in truth, the way in which active camouflage works is exceedingly simple; have you ever hooked a video camera to a television while it was on "record" mode? It's nothing special, and doesn't do much more than make a bigger image of what the camera already sees, but it's the idea that counts. Now, say you were to take that camera, set it on the television, and turn it so it faced the opposite direction as the screen; you'd get an exciting picture of... well... nothing- a wall, probably, but nothing special, right? Ah, but here's the trick! Take away the edges of the television, everything but the screen, set the camera directly behind it and voila! you can see right through it; the camera is invisible! Not excited yet? Consider that, by placing the screen and the camera in such a manner that they face the same direction, you'll get a picture of yourself and the room you're in, say, your living room or kitchen; people who walk into the room will see themselves on the screen and instantly notice it, (and probably do something silly, but that's beside the point,) but, by taking the camera and turning it so it faces the opposite direction, the screen will show a picture of whatever is behind it, meaning if a person walks by the camera, he or she will show up on the screen and, if the camera's placed right, there will be little, if any real difference (at least from a reasonable distance) in the way he or she looks before, during, and after he or she passes behind the screen. Or, on an even greater scale, imagine a screen so large it serves as a wall of your home, connected to a whole cluster of cameras outside; from the outside, all you see is a wall of cameras, (though I'm sure the cameras could easily be disguised so your neighbors wouldn't get uneasy) but on the inside, it looks like there's absolutely no wall there at all- it's just invisible, giving you a view of the road, trees, neighboring houses, etc. This is the basic idea behind active camouflage- it is essentially a screen that projects what a camera sees in such a way as to fool the naked eye into perceiving something as transparent, no matter how many curves, creases or folds are in it.