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A major problem with rear projection use was that the image projected on the screen was always slightly less crisp than the action in front of it, an effect which was especially noticeable in sequences where footage with rear projection alternates with non-projection shots. A major advance over rear projection is front projection, which uses a ...
A front projection effect is an in-camera visual effects process in film production for combining foreground performance with pre-filmed background footage. In contrast to rear projection, which projects footage onto a screen from behind the performers, front projection projects the pre-filmed material over the performers and onto a highly reflective background surface.
Rear-projection television (RPTV) is a type of large-screen television display technology. Until approximately 2006, most of the relatively affordable consumer large screen TVs up to 100 in (250 cm) used rear-projection technology. A variation is a video projector, using similar technology, which projects onto a screen.
A front-projection television uses a projector that is separate from the screen which could be a suitably prepared wall, and the projector is placed in front of the screen. The setup of a rear-projection television is similar to that of a traditional television in that the projector is contained inside the television box and projects the image ...
LCD self-contained rear-projection: Flat lenticular: 70 [11] 178 TV: Yes LCD front-projection: Flat (limited only by brightness) TV or presentation Yes DLP self-contained rear-projection Flat lenticular: 120 [12] 305 TV: Yes DLP front-projection Flat (limited only by brightness) TV or presentation Yes LCoS self-contained rear-projection Flat ...
The display design can use either front or rear projection, in which one or more video projectors are directed at the glass plate. Each projector's beam widens as it approaches the surface and then is bundled again by the lenses' arrangement on the glass.
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