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H.263 is a video compression method originally designed as a low-bit-rate compressed format for videotelephony. It was standardized by the ITU-T Video Coding Experts Group (VCEG) in a project ending in 1995/1996. It is a member of the H.26x family of video coding standards in the domain of the ITU-T.
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.
Orange artifact color, generated from white and black pixels, on the TRS-80 Color Computer Example of artwork created with the intent of having individual pixel values horizontally averaged over composite video. Composite artifact colors is a technique commonly used to address several graphic modes of some 1970s and 1980s home computers.
Video quality can be measured with formal metrics like peak signal-to-noise ratio (PSNR) or through subjective video quality assessment using expert observation. Many subjective video quality methods are described in the ITU-T recommendation BT.500. One of the standardized methods is the Double Stimulus Impairment Scale (DSIS).
See also, the Motion topic for video quality requirements considerations. [3] Motion Picture Expert Group (MPEG) A group of standards for encoding and compressing audiovisual information such as movies, video, and music. MPEG compression is as high as 200:1 for low-motion video of VHS quality, and broadcast quality can be achieved at 6 Mbit/s.
Users could view 4K video by selecting "Original" from the quality settings until December 2013, when the 2160p option appeared in the quality menu. [77] In November 2013, YouTube began to use the VP9 video compression standard, saying that it was more suitable for 4K than High Efficiency Video Coding (HEVC). Google, which owns YouTube ...
This is a list of recognized content, updated weekly by JL-Bot (talk · contribs) (typically on Saturdays).There is no need to edit the list yourself. If an article is missing from the list, make sure it is tagged (e.g. {{WikiProject California}}) or categorized correctly and wait for the next update.
YouTube incorporated Google's AdSense program, generating more revenue for both YouTube and approved content creators. In 2023, YouTube's advertising revenue totaled $31.7 billion, a 2% increase from the $31.1 billion reported in 2022. [12] From Q4 2023 to Q3 2024, YouTube's combined revenue from advertising and subscriptions exceeded $50 billion.