scan line

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scan line

[′skan ‚līn]
(electronics)
A horizontal row of pixels on a video screen that are examined or refreshed in succession in one sweep across the screen during the scanning process.

scan line

The line produced on a recording medium frame by a single sweep of a scanner.

scan line

(hardware)
A horizontal line of pixels generated by a single horizontal sweep of the beam from a monitor's electron gun. The number of scanlines that make up a frame is the vertical resolution.

scan line

A horizontal line (a row) in a video frame. Camcorders sense image frames a line at a time, and display systems create images a line at a time. The scan lines are the vertical resolution of the system; for example, an NTSC TV signal uses 525 lines, 480 of which contain image data ("active" scan lines) and 45 are the vertical blanking interval (VBI) in between the frames. Following are the active scan lines of various video formats. See scan rate and horizontal scan frequency.

Analog              ActiveFormats             Scan Lines

  VHS                 240
  8mm                 240
  Sony U-matic 3/4"   250
  Sony U-matic SP     330
  S-VHS               400
  Hi8                 400
  Laserdisc           425
  NTSC                480 out of 525
  PAL/SECAM           580 out of 625


  Digital             ActiveFormats             Scan Lines

  DVD                 480
  DV                  480
  SDTV Digital TV     480
  EDTV Digital TV     480
  HDTV Digital TV     720 & 1080
References in periodicals archive ?
With offices in Los Angeles, Vancouver and Munich, Scanline VFX specializes in creating complex visual effects for high-end feature films and TV commercials.
Scanline VFX required an infrastructure solution with large amounts of CPU power, along with guaranteed availability and redundancy, to run thousands of renders and simulations concurrently, amounting to more than 210 terabytes of data daily, with an overall storage capacity of more than three petabytes.
Intricate components can be captured in fine detail as a result of the 2,000 actual points per scanline and the new blue laser featuring noise reduction technology.
Then, the modified scanline algorithm (Donald Hearm & M.
We used an adapted scanline algorithm (Donald Hearm & M.
With more than 20 years experience in the European VFX world, Scanline opened its Los Angeles facility in 2008, and most recently opened its Vancouver studio in August, 2011.
To create the photorealistic CG water sequence, Scanline VFX used Autodesk 3ds Max software for modeling, animation, rigging, cloth and hair simulation.
2012" -- The Last Fluid Simulation (USA/Germany) Visual Effects by Scanline VFX, Los Angeles/Munich "2012 - The Last Fluid Simulation" shows the underlying technology that was used for more than 100 massive fluid simulation shots on "2012".
Scanline VFX artists created over 100 complex water simulation shots, including an aircraft carrier on a tidal wave crashing into the White House.
Gelato is armed with the full feature set required by digital production professionals, including scanline and raytraced rendering, global illumination, ambient occlusion, multi-threading, network rendering, and support for the full range of geometric primitives for film-quality images.
Completed the sale of non-core assets for a total of approximately AUD$4 million including Scanline Pty Ltd.
mental ray, a ray-tracing and scanline rendering package, is available as an integrated rendering solution within Discreet's 3ds max animation software.