Digital Video

natalia gutierrez
Mind Map by natalia gutierrez, updated more than 1 year ago
natalia gutierrez
Created by natalia gutierrez over 3 years ago
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Maind map of digital video
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Digital Video
1 Meaning
1.1 The video is a technology used to capture, recording, processing, transmitting and reproducing a sequence of images representative of a scene that is in motion. The term, which comes from the Latin "see", is currently associated with different storage formats, whether analog (VHS and Betamax) and digital (MPEG-4, DVD, Quicktime, etc.).
2 Type of video
2.1 Analog
2.1.1 Analog technology records waveforms as they are
2.2 Digital
2.2.1 Samples analog waveforms into a limited set of numbers and records them.
3 Formats
3.1 AVI (.avi): Most commonly contains M-JPEG,or DivX, but can contain nearly any format
3.2 Quicktime: Most often used for the locked Apple Sorenson codec, or for Cinepak (free), but can also hold other codecs such as mjpeg, etc.
3.3 WMV (.wmv): More or less MPEG4; can contain nearly any codec, including several Microsoft spinoffs of MPEG-4
3.4 ASF ("Advanced Streaming Format", .asf): a subset of wmv, intended primarily for streaming
4 Synthesis
4.1 Visual multimedia source that combines a sequence of images to form a moving picture. The video transmits a signal to a screen and processes the order in which the screen captures should be shown. Videos usually have audio components that correspond with the pictures being shown on the screen.
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