Digital video, Computer Graphics

Assignment Help:

Digital Video: Digital video is a form of video recording system which works through using a digital, quite than analog, representation of the video signal. It generic means, not to be confused along with the identity DV that is an exact type of digital video. Digital video is most frequently recorded on tape and then distributed on optical discs, generally DVDs. There are exceptions, as camcorders which record directly to DVDs Digital-8 camcorders that encode digital video upon conventional analog tapes and the most current JVC Everio G camcorders that record digital video on hard disks.

Digital video is not as regular analogue video used through daily televisions. To know how digital video works this is best to believe of this as a sequence of non-interlaced images, all of that is a two-dimensional frame of picture parts or pixels. Current analogue television systems as:

  • The NTSC that is National Television Standards Committee, utilized in North America and Japan
  • PAL that is Phase Alternate Line, utilized in Western Europe, employ line interlacing. Systems which use line interlacing alternately scan odd and even lines of the video that can produce images while analogue video is digitized.

In matter of Digital video, there are two terms related with all pixels, luminance and chrominance. A luminance is a value i.e. proportional to the pixel's intensity. The chrominance is a value which represents the colour of the pixel and a number of representations are there to decide from. Any colour can be synthesized through a suitable mixture of three correctly selected primary colours. So RGB that is Red, Green and Blue, are usually selected for the primary colours.

While an analogue signal is digitized, this is quantized. Quantization is the process through such a continuous range of values from an input signal is divided into non- overlapping discrete ranges and all range allocated a unique symbol. A digitized monochrome photograph may, for illustration, contain merely 256 various kinds of pixel. That image would be as to have a pixel depth of 8 bits. The higher quality image may be quantized permitting 24 bits per pixel.


Related Discussions:- Digital video

Animation, name some of the standard motion in key frames

name some of the standard motion in key frames

What is raster scan display, What is  Raster Scan Display A raster sca...

What is  Raster Scan Display A raster scan display device using CRT on the other hand directs the electron beam across the screen, one row at a time from top to bottom. In a ra

Character Generation, Explain Various techniques of Character Generation Al...

Explain Various techniques of Character Generation Algorithm?

Subdivision algorithm - visible surface detection, Subdivision Algorithm - ...

Subdivision Algorithm - Visible Surface Detection 1) Initialize the area to be the whole screen. 2) Create a PVPL regarding an area, sorted on z min as the smallest z coor

What is homogeneous coordinate, What is homogeneous coordinate? Discuss the...

What is homogeneous coordinate? Discuss the composite transformation matrix for two successive translations and scaling. In design and picture formation process, many times

Remark for the bresenham line generation algorithm, Remark for the Bresenha...

Remark for the Bresenham Line Generation Algorithm Remark: The algorithm will be properly the same if we suppose | m | Algorithm | m | (a) Input two line endi

Explain the term- control, Explain the term- Control Traffic lights (co...

Explain the term- Control Traffic lights (controlling the sequence of lights to maintain optimum traffic flow), chemical and nuclear plants (opening and closing valves, safety

What is shearing, What is shearing?  The shearing transformation actua...

What is shearing?  The shearing transformation actually slants the object with the X direction or the Y direction as needed.ie; this transformation slants the shape of an obje

digital audio technologies, Digital audio technologies DAB (Digita...

Digital audio technologies DAB (Digital Audio Broadcasting) Digital Audio Tape (DAT) DVD DVD-A Digital audio player Compact disc (CD) Minidisc (obsolete

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd