Lines of resolution

Lines of resolution

Lines of resolution is a measure of horizontal resolution in a video system, as measured by the number of vertical black lines that can be resolved on a white background. The term was invented in the early days of television. Since analog transmission of video is scan line-based, the same number of "horizontal" lines is always transmitted. However, several factors impede the ability to display fine detail within a line:

# The camera or other source of material.
# The storage and processing of the picture.
# The transmission of the TV signal e.g. broadcast by radio or by cable.
# The reception and reproduction of the picture on a TV set.

The actual measure of 'lines of resolution' is how many "vertical" black-white lines can be resolved on a display. In comparison to modern ideas of resolution, 'lines of resolution' is essentially half the number of horizontal pixels. i.e 640x480 has 320 "lines of resolution".


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Lines per inch — (LPI) is a measurement of printing resolution in systems that use a halftone screen. Specifically, it is a measure of how close together the lines in a halftone grid are. Higher LPI indicates greater detail and sharpness.Printed magazines and… …   Wikipedia

  • RESOLUTION — T&F Resolution is the term used to describe the number of dots, or pixels, used to display an image. Higher resolutions mean that more pixels are used to create the image, resulting in a crisper, cleaner image. The display, or resolution on a… …   Audio and video glossary

  • Resolution of singularities — Strong desingularization of Observe that the resolution does not stop after the first blowing up, when the strict transform is smooth, but when it is simple normal crossings with the exceptional divisors. In algebraic geometry, the problem of… …   Wikipedia

  • Resolution — VP The size of the image in pixels. In camera and TV specs, resolution is listed as the number of horizontol pixels x vertical pixels. For HD, there are usually 1080 or 720 vertical pixels. FilmM the size of the image in pixels. In camera and TV… …   Audio and video glossary

  • Resolution, Limiting — WikiV The details that can be distinguished on the television screen. Vertical resolution refers to the number of horizontal black and white lines that can be resolved in the picture height. Horizontal resolution refers to the black and white… …   Audio and video glossary

  • resolution — i. The expression of the fineness of detail that can be recorded by a lens or an emulsion. ii. The capability of an optical or radar system to distinguish between two objects closely adjacent and display them as separate images. The resolution… …   Aviation dictionary

  • Resolution enhancement technology — Ret is also the abbreviation for the constellation Reticulum. Resolution enhancement technology (RET) is a form of image processing technology used to manipulate dot characteristics popular among laser printer and inkjet printer manufacturers.… …   Wikipedia

  • Resolution of the Dreyfus Affair — Trial of Esterhazy for forgeryOn the same day as this arrest the examining magistrate Bertulus, disregarding the threats and entreaties directed at him, on his own initiative (as an official note put it) sent Major Esterhazy and his mistress,… …   Wikipedia

  • Resolution — In genetics, resolution refers to the degree of molecular detail on a physical map of DNA, ranging from low to high. * * * 1. The arrest of an inflammatory process without suppuration; the absorption or breaking down and removal of the products… …   Medical dictionary

  • Resolution horizontal — WikiV The amount of resolvable detail in the horizontal direction in a picture. It is usually expressed as the number of distinct vertical lines, alternately black and white, which can be seen in a distance equal to picture height …   Audio and video glossary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”