The Third Dimension

As we have said, the film or video camera captures a flat, two-dimensional image and the movie theatre, television, and computer screens display a flat, two-dimensional image. So how is it that when we watch television and, more noticeably, movies on very large theatre screens that the elements of the frame (either static or moving) seem to occupy a three-dimensional space? Well, the simple answer is to say that this phenomenon is achieved through visual illusions and tricks for the human eye and brain. There are many more in-depth physiological and psychological reasons, but this is not the appropriate place to explore those topics fully. Feel free to do your own research on the human visual system and how we interpret light, ...

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