Video annotation; Video content description
Digital video is recorded in two different image capture formats: interlaced and progressive scan. Interlaced video establishes an image by recording alternating sets of lines, where one set of odd or even lines is referred to as a “field,” and a consecutive pairing of two fields of opposite parity is called a frame. In a progressive digital video each frame is recorded in a distinct manner, with both fields being identical. Both operate at the same number of frames per second, which is in NTSC roughly 29 images and in Pal around 25 images per second. As of 2007, the highest resolution demonstrated for digital video generation is 33 megapixels (7680 × 4320) at 60 frames per second (“UHDV”).
Metadata is data about data of any sort in any media, describing an individual datum, content item, or a collection of data including multiple content items. In that way, metadata facilitates the understanding, characterization, use and...
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