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Widescreen Display Modes
Widescreen televisions provide several modes for displaying video from 4:3 (standard aspect ratio) sources. These modes may be selected manually from a remote control, or automatically if an Active Format Description is available. Normal mode ''Normal mode'' frames the 4:3 video to the 16:9 picture area by displaying it in its original aspect ratio, with vertical gray or black bars on both sides of the screen. The disadvantage of this method is the fact that the image is small by virtue of not using the entire width of the screen. This is also known as the ''4:3 mode''. Full mode ''Full mode'' horizontally stretches the 4:3 video evenly across the entire width of the screen. This is the proper mode to display anamorphic video. If used for standard aspect ratio video, everything on the screen will appear wider than normal. Contrast this with anamorphic video displayed without processing on a 4:3 display, in which people on the screen will appear taller than normal. This is also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Widescreen
Widescreen images are displayed within a set of aspect ratio (image), aspect ratios (relationship of image width to height) used in film, television and computer screens. In film, a widescreen film is any film image with a width-to-height aspect ratio greater than 4:3 (1.33:1). For TV, the original screen ratio for broadcasts was in 4:3 (1.33:1). Largely between the 1990s and early 2000s, at varying paces in different countries, 16:9 (e.g. 1920×1080p 60p) widescreen displays came into increasingly common use by high-definition video, high definitions. With computer displays, aspect ratios other than 4:3 (e.g. 1920×1440) are also referred to as "widescreen". Widescreen computer displays were previously made in a 16:10 aspect ratio (e.g. 1920×1200), but nowadays they are 16:9 (e.g. 1920×1080, 2560×1440, 3840×2160). Film History Widescreen was first used for ''The Corbett-Fitzsimmons Fight'' (1897). This was not only the longest film that had been released to date at 10 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspect Ratio (image)
The aspect ratio of an image is the ratio of its width to its height. It is expressed as two numbers separated by a colon, in the format width:height. Common aspect ratios are 1.85:1 and 2.39:1 in cinematography, 4:3 and 16:9 in television, and 3:2 in still photography and 1:1: Used for square images, often seen on social media platforms like Instagram, 21:9: An ultrawide aspect ratio popular for gaming and desktop monitors. Some common examples The common film aspect ratios used in cinemas are 1.85:1 and 2.39:1.The 2.39:1 ratio is commonly labeled 2.40:1, e.g., in the American Society of Cinematographers' ''American Cinematographer Manual'' (Many widescreen films before the 1970 Society of Motion Picture and Television Engineers, SMPTE revision used 2.35:1). Two common videography, videographic aspect ratios are 4:3 (1.:1), the universal video format of the 20th century, and 16:9 (1.:1), universal for high-definition television and European digital television. Other cinematic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Active Format Description
In television technology, Active Format Description (AFD) is a standard set of codes that can be sent in the MPEG video stream or in the baseband Serial digital interface, SDI video signal that carries information about their aspect ratio and other active picture characteristics. It has been used by television broadcasters to enable both 4:3 and 16:9 television sets to optimally present pictures transmitted in either format. It has also been used by broadcasters to dynamically control how down-conversion equipment formats widescreen 16:9 pictures for 4:3 displays. Standard AFD codes provide information to video devices about where in the coded picture the active video is and also the "Shoot and protect, protected area" which is the area that needs to be shown. Outside the protected area, edges at the sides or the top can be removed without the viewer missing anything significant. Video decoders and display devices can then use this information, together with knowledge of the displ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anamorphic
Anamorphic format is a cinematography technique that captures widescreen images using recording media with narrower native Aspect ratio (image), aspect ratios. Originally developed for 35 mm movie film, 35 mm film to create widescreen presentations without sacrificing image area, the technique has since been adapted to various film gauges, digital cinematography, digital sensors, and video formats. Rather than cropping or Matte (filmmaking)#Mattes and widescreen filming, matting the image and discarding visual information, anamorphic capture employs cylindrical lenses to horizontally compress or "squeeze" the image during recording. A complementary lens is then used during projection to expand the image back to its intended widescreen proportions. By utilizing the full height of the film frame or sensor, this method retains more image resolution than cropped non-anamorphic widescreen formats. Anamorphic lenses have more complex optics than standard spherical lenses, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Letterboxed
Letter-boxing is the practice of transferring film shot in a widescreen aspect ratio to standard-width video formats while preserving the film's original aspect ratio. The resulting video-graphic image has mattes of empty space above and below it; these mattes are part of each frame of the video signal. Etymology The term refers to the shape of a letter-box, a slot in a wall or door through which mail is delivered, being rectangular and wider than it is high. Early home video use The first use of letter-boxing in consumer video appeared with the RCA Capacitance Electronic Disc (CED) videodisc format. Initially, letter-boxing was limited to several key sequences of a film such as opening and closing credits, but was later used for entire films. The first fully letter-boxed CED release was '' Amarcord'', and several others followed including '' The Long Goodbye'', ''Monty Python and the Holy Grail'' and '' The King of Hearts''. Each disc contains a label noting the use of "R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open Matte
Open matte is a filming technique that involves matting out the top and bottom of the film frame in the movie projector (known as a ''soft matte'') for the widescreen theatrical release and then scanning the film without a matte (at Academy ratio) for a full screen home video release, thus not only providing a much better full frame presentation than cropping, but considerably more convenient than pan and scan. It is roughly equivalent to an uncropped version of the film. Open matte can be used with non-anamorphic films presented in 2.20:1 or 2.39:1, but it is not used as often, mainly because it adds too much additional headroom, depending upon how well the framing was protected or for aesthetic purposes. Instead, those films will employ either pan and scan or reframing using either the well-protected areas or the areas of interest. Films shot anamorphically use the entire 35 mm frame (except for the soundtrack area), so they must use pan and scan as a result. H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Field Of View In Video Games
In first person video games, the field of view or field of vision (abbreviated FOV) is the extent of the observable game world that is seen on the display at any given moment. It is typically measured as an angle, although whether this angle is the horizontal, vertical, or diagonal component of the field of view varies from game to game. The FOV in a video game may change depending on the aspect ratio of the rendering resolution. In computer games and modern game consoles the FOV normally increases with a wider aspect ratio of the rendering resolution.Master Games List http://www.wsgf.org/mgl Field of view calculations The field of view is usually given as an angle for the horizontal or vertical component of the FOV. A larger angle indicates a larger field of view. However, depending on the FOV scaling method used by the game, it may only affect the horizontal or the vertical component of the field of view. The horizontal and vertical FOV are calculated from the following ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
