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Α video codec is software or a device that provides encoding and decoding for digital video, and which may or may not include the use of video compression and/or decompression. Most codecs are typically implementations of video coding formats . The compression may employ lossy data compression, so that quality-measurement issues become important.
High-definition video ( HD video) is video of higher resolution and quality than standard-definition. While there is no standardized meaning for high-definition, generally any video image with considerably more than 480 vertical scan lines (North America) or 576 vertical lines (Europe) is considered high-definition. [citation needed] 480 scan ...
Video quality. 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 ...
1080p(1920 × 1080 progressivelydisplayed pixels; also known as Full HDor FHD, and BT.709) is a set of HDTVhigh-definition videomodes characterized by 1,920 pixels displayed across the screen horizontally and 1,080 pixels down the screen vertically;[1]the pstands for progressive scan, i.e.non-interlaced.
Also the size recommended for "medium" quality MMS videos. [citation needed] 144p 144p 192×144 27,648 4:3 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 ...
4K resolution refers to a horizontal display resolution of approximately 4,000 pixels. [ 1] Digital television and digital cinematography commonly use several different 4K resolutions. In television and consumer media, 3840 × 2160 ( 4K UHD) with a 16:9 aspect ratio is the dominant 4K standard, whereas the movie projection industry uses 4096 × ...
Video file format. A video file format is a type of file format for storing digital video data on a computer system. Video is almost always stored using lossy compression to reduce the file size. A video file normally consists of a container (e.g. in the Matroska format) containing visual (video without audio) data in a video coding format (e.g ...
8K resolution refers to an image or display resolution with a width of approximately 8,000 pixels. 8K UHD ( 7680 × 4320) is the highest resolution defined in the Rec. 2020 ( UHDTV) standard. [ 1 ] 8K display resolution is the successor to 4K resolution. TV manufacturers pushed to make 4K a new standard by 2017.