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Some omnidirectional cameras contain wide-angle lenses on the front and rear to facilitate the recording of 360-degree video. 360-degree video is typically recorded using either a special rig of multiple cameras, or using a dedicated camera that contains multiple camera lenses embedded into the device, and recording overlapping angles simultaneously.
HVGA (Half-size VGA) screens have 480 × 320 pixels (3:2 aspect ratio), 480 × 360 pixels (4:3 aspect ratio), 480 × 272 (≈16:9 aspect ratio), or 640 × 240 pixels (8:3 aspect ratio). [citation needed] The former is used by a variety of PDA devices, starting with the Sony CLIÉ PEG-NR70 in 2002, [81] and standalone PDAs by Palm. The latter ...
The extra pixels are used to form the increased area to the sides of the D1 image. The pixel density of 960H is identical to standard D1 resolution so it does not give any improvement in image quality, merely a wider aspect ratio. Alternative analog video transport technologies carrying higher resolutions than 960H include HD-TVI, HDCVI, and AHD.
480p is the shorthand name for a family of video display resolutions.The p stands for progressive scan, i.e. non-interlaced.The 480 denotes a vertical resolution of 480 pixels, usually with a horizontal resolution of 640 pixels and 4:3 aspect ratio (480 × 4 ⁄ 3 = 640) or a horizontal resolution of 854 (848 should be used for mod16 compatibility) [1] pixels for an approximate 16:9 aspect ...
1080p progressive scan HDTV, which uses a 16:9 ratio. Some commentators also use display resolution to indicate a range of input formats that the display's input electronics will accept and often include formats greater than the screen's native grid size even though they have to be down-scaled to match the screen's parameters (e.g. accepting a 1920 × 1080 input on a display with a native 1366 ...
The resolution 192×144 is used when 144p is selected on a fullscreen YouTube video. [citation needed] YouTube 144p 144p 256×144 36,864 16:9 One tenth of 1440p. The lowest resolution on YouTube since 2013. [10] QnHD 180p 320×180 57,600 16:9 222p 222p 400×222 88,800 16:9 Used in low-resolution Facebook widescreen videos. [citation needed]
Since most digital hardware devices use dots or pixels, the size of the media (in inches) and the number of pixels (or dots) are directly related by the 'pixels per inch'. The following formula gives the number of pixels, horizontally or vertically, given the physical size of a format and the pixels per inch of the output:
Video quality is a characteristic of a video passed through a video transmission or processing system that describes perceived video degradation (typically compared to the original video). Video processing systems may introduce some amount of distortion or artifacts in the video signal that negatively impact the user's perception of the system.