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When projecting in a bar setting, many times, you have no choice but to project around ceiling obstacles like vents ducts or columns. If this is your situation, you can rest assured that there are video projectors with the ability to square an image even if you have to position your video projector at an odd angle. Using digital interpolation, keystone correction and 3D reform allows the video projector to square an image on a screen that would normally look skewed.