Rear projection
From Wikipedia, the free encyclopedia
"Back projection" redirects here. For the mathematical transform, see filtered back projection. For the technique in computer vision, see Histogram equalization § Back projection.
For the large-screen television technology, see Rear-projection television.
Rear projection (background projection, process photography, etc.) is one of many in-camera effects cinematic techniques in film production for combining foreground performances with pre-filmed backgrounds. It was widely used for many years in driving scenes, or to show other forms of "distant" background motion.
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