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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.
It is a 30-inch (76 cm) 4:3 rear projection display (1024×768) with an integrated PC and five near-infrared (IR) cameras that can see fingers and objects placed on the display. The display is placed in a horizontal orientation, giving it a table-like appearance.
Rotoscoping is achieved by two methods, rear projection and front surface projection. In either case, the results can have slight deviations from the true line due to the separation of the projected image and the surface used for tracing.
Front projection; Rear projection; Phonotrope a live animation technique that uses the frame-rate of a camera; There are many ways one could use the in-camera effect. The in-camera effect is something that often goes unnoticed but can play a critical part in a scene or plot.
Jake and Gloria kiss as the background shows a noticeable rear projection. The scene is a direct homage to a 360-degree camera shot in Alfred Hitchcock's film Vertigo. Marylynn Uricchio of the Pittsburgh Post-Gazette wrote, "De Palma throws in elements of satire and more than nods his head at the whole Hollywood tradition. There's that sweepy ...
A special lens on a 70 mm projector added polarization and merged the two images on the screen. [1] A similar Soviet system known as Stereo 70 did not employ anamorphics, resulting in an aspect ratio of 1.37:1. [2] Stereospace 2000 (a 3D process) and Kodak-Disney 3D used dual 65 mm cameras operating at 30fps.
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