progressive scan

(redirected from sequential scan)

progressive scan

Illuminating a screen by displaying lines sequentially from top to bottom. Also called "non-interlaced," all modern computer monitors and digital TVs support progressive scan. For example, the "p" in 720p means that it displays 720 lines, one after the other, for each video frame. The highest progressive format in common use is 1080p.

Contrast with "interlace" or "interlaced," which illuminates every odd line first and then goes back and fills in the even lines. Given the same frame rate, progressive scan displays twice as many lines on screen in the same time. See interlace, frame rate, progressive scan DVD, progressive scan TV, HDTV, deinterlace and DTV.

References in periodicals archive ?
4] Sequential scan system that outputs data of all pixels per each frame.
There is a substantial difference between these two methods of evaluation, since fetching an additional block of records from disk in a sequential scan takes much less time than fetching an arbitrary block randomly, which takes even less time than the time for inserting/deleting a record.
A sequential scan on a relation is realized as sequential scans on individual fragments.
So if we give exactly the same injection protocol each time, that removes the rate of injection and other variables that occur between sequential scans because we follow the exact same injection protocol as before.
Instead of three sequential scans to show progression of disease dissemination, the new criteria state that two are adequate--a reference scan done after the initial clinical event and a follow-up scan with gadolinium enhancement at least 3 months afterward, or a new T2 lesion at any time when compared with a reference scan done at least 30 days after the event (Annals of Neurology, http://dx.
The new MSIM docking station holds either the larger species cassette or an adapter that holds the original mouse cassette, allowing for sequential scans of rats, hamsters, guinea pigs and mice interchangeably.
They concluded that, although periprosthetic activity generally decreased over time, there was considerable patient-to-patient variation, and sequential scans are needed to determine the significance of increased periprosthetic uptake (Figure 4).
This allows administrators to resolve specific URLs for deletion or alteration within the system, without requiring sequential scans through the entire repository data.

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