DIGITAL+VIDEO

DIGITAL VIDEO: Sergio Delgado Méndez de 4ºA Jesús González Gamero de 4ºA Miriam Pajuelo Molina 4ºA/ DIVER Raul Calderon Miron 4ºB media type="custom" key="11542596" ** DIGITAL VIDEO ** //The digital video is a type of system of recording video that works using a digital representation of the sign of video, instead of analogical. This generic term must not get confused with the name DV, which is a specific type of digital video focused on the consumer market. The digital video is recorded often in tape, and later it is distributed on optical discs, normally DVDs. There are exceptions, as the chambers of video that they record directly in DVD, the video cameras of Digital that codify the digital video in analogical conventional tapes, and other video cameras that record digital video on hard disks or flash memory.// media type="youtube" key="qbqYZCYK-DI" width="424" height="350" //Digital video Wikipedia//

On the one hand, video is the technology that captures light in electronic form , making it a series ofstill images that,when placed in rapid succession,are seen by the human eye amagnetic wave transmitter. These waves act ona film sensitive tomagnetic changes, capturing an dimageon it.

Digital refers to all information, what ever that is expressedin the form of values ​​1and 0.All the world's computers translateto 1 and 0 the information they hold , whe ther documents, images , sounds, calculations, etc.. The advantage of this system is that a computer will always be January 1 January 1 and 0will always be a 0, so that maybe infinite copies of the same information with out any quality lostit. Thus, a digital text document can be written in a computer, hence posted online , then downloaded to another computer and then transferredvi a different flash drive to another computer from which you print, and always the same original text , without loss.



** What is a video? ** A video is a successionof images presentedat a certain frequency. The human eye can distinguish approximately 20 images persecond.Thus,when displaying more than 20 imagesper second, you can fool the eye and create the illusion of a moving image.The fluidity ofa videois characterized by the number of frames per second (frame rate ), expressed in FPS ( frames per second).

** Digital Video ** The digital video consists of showing a succession of digital images. Since these digital images are a determined frequency, the frequency of refreshment, that is to say, the number of bytes shown (or transferred) by time unit is possible knowledge.