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Video resolution - dimensions, media, tips

By analogy with computer monitors, any video signal is characterized by a vertical and horizontal resolution. It is measured in pixels. The European standard for image clarity is 720x576 pixels. This resolution is obtained after digitizing the analog video. In the expression 720x576, the first number indicates the horizontal resolution of the video (the number of points in the line), the second is the vertical number (the number of active lines that participate in the construction of the image). Also 720x576 pixels is the maximum clarity for a DVD-format.

The higher the number of pixels, the better the image. The high-definition video format is called HD (High Definition). Its benefits can be appreciated by watching videos and movies from screens with a large diagonal. It is with the advent of LCD and plasma panels of large sizes, the HD format is claimed as never before. HDTV (high definition television) is broadcast in two standards. The resolution of the video of one of them is 1920x1080 pixels, the second one is 1280x720.

For three-dimensional video, the resolution is 512х512х512. It is measured in Voxels. These are elements of the image, dots-cubes in three-dimensional space.

When choosing a television plasma or liquid crystal panel, attention should be paid to the marking. If the technical passport specifies that the receiver supports the HD-Ready broadcast, then an image of 1024x768 pixels will be transmitted from the screen. Only Full-HD marking means support for video resolution of 1920x1080 square pixels. If you want to watch a movie or a movie from the computer screen, it is necessary that both the display and the video card support the technology for protecting media content-HDCP. In most cases, modern LCD-monitors perfectly cope with this task.

High-resolution video media supports two formats. This is Blue-Ray and HD DVD. Externally, they do not differ from conventional DVD-ROM drive. The difference is in the amount of information that can fit into these carriers. In HD DVD format, optical discs are produced one, two, rarely three-layer. Each layer can accommodate up to 15 GB of information. But in the struggle of formats, Blue-ray wins. Only one layer of such an optical disk is capable of carrying up to 33 GB. At the same time in 2009, the market saw a ten-layer carrier of the Blue-Ray format. However, these disks were not widely distributed in Russia or in Europe. The reason for this - the high cost of video players and a number of other shortcomings.

The resolution of video 1920x1080, 1280x720 pixels does not reproduce many portable devices - this is both mobile phones and tablets. To view movies and movies on them, you need to change the video resolution. This can be done with the help of converter programs. They are in sufficient numbers on the Internet. To choose is better such program which converts in the greatest quantity of formats. It will not be out of place and the presence of presets - ready-made settings for a particular device. That is, selecting the desired model in the menu, there will be no need to set codecs, frame rates, etc.

Give a little advice. Remember, video conversion is quite a lengthy process, and if you are going on the road, prepare your files in advance.

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