POV may stand for Persistence of vision which is the phenomenon of the eye by which an afterimage is believed to persist for an estimated one twenty-fifth of a second on the retina. It has been proven a myth and is said to be the mistaken belief that human perception of motion (brain centred) is directly the result of persistence of vision (eye centred). This myth was debunked in 1912 by Wertheimer but is still represented in many citations in numerous classic and modern film-theory texts. A more feasible theory to expound motion perception are the two distinct perceptual illusions: phi phenomenon and beta movement. A visual form of memory designated as iconic memory has been identified as the cause of this phenomenon. Although psychologists and physiologists have invalidated the importance of this theory to film viewership, film academics and theorists typically have not. There are some present day scientists who consider the entire theory a myth. The discovery of persistence of vision has been attributed to the Roman poet Lucretius, although he had only mentioned it in connection with images viewed in a dream.
POV may also be an abbreviation of The Persistence of Vision Raytracer, or POV-Ray. It is a ray tracing program that is available for a number of computer platforms. It was fundamentally based on DKBTrace, written by David Kirk Buck and Aaron A. Collins.
POV may also be short for Point of View. In literature narrative point-of-view, which exhibits the person whose perspective the story is being told from, is essentially denoted by the narrative voice. The narrative voice indicates how the story is expressed or told to the audience, and narrative tense, which indicates whether the story happens in the past, present, or future. The person whose point of view is employed to relate the story is thought of as the “narrator,” who is a character developed by the author for the intended purpose of conveying the story. The narrative point-of-view is created to relate the experience of the character of this narrator not that of the actual author. The ability to use points of view adequately may be used to measure one’s writing ability.
POV may also stand for the PBS television series of the same name. It features independent nonfiction films. POV is short for the cinematic term denoting “point of view”. POV has run for longer than other showcases on television for independent documentary films. PBS broadcasts 14 to 16 POV programs annually, and the series has premièred over 250 films to the United States television audiences since the year 1988. POV’s documentary films are said to have a strong first-person, social-issue focus. Many notable directors, including Michael Moore, Jonathan Demme, Terry Zwigoff, Errol Morris, Albert and David Maysles, Michael Apted, Frederick Wiseman, Marlon Riggs, and Ross McElwee have had their work screened as part of the POV series.