Browse Definitions :
Definition

progressive scan

Progressive scan is a display and signal type in which the entire image is refreshed every cycle.

In a progressive scan display at 60hz, the image is refreshed in its entirety 60 times per second; in a display at 120hz the image is completely refreshed 120 times per second. Each scan displays every line in the image raster sequentially from top to bottom. In an interlaced scan, alternating rows of pixels are refreshed in each cycle and it takes two cycles to refresh every row of pixels in the display.

A progressive display produces a more stable and flicker-free picture, with smooth motion and a more realistic image. The improvement is especially noticeable for the fast-moving images typical of television and DVD programs.

In TV signal specifications, like 720p, 1080i or 1080p the numeral indicates the number of horizontal lines in the complete raster. The p stands for progressive scanning.

This was last updated in September 2013

Continue Reading About progressive scan

SearchCompliance
  • OPSEC (operations security)

    OPSEC (operations security) is a security and risk management process and strategy that classifies information, then determines ...

  • smart contract

    A smart contract is a decentralized application that executes business logic in response to events.

  • compliance risk

    Compliance risk is an organization's potential exposure to legal penalties, financial forfeiture and material loss, resulting ...

SearchSecurity
SearchHealthIT
SearchDisasterRecovery
  • What is risk mitigation?

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • change control

    Change control is a systematic approach to managing all changes made to a product or system.

  • disaster recovery (DR)

    Disaster recovery (DR) is an organization's ability to respond to and recover from an event that affects business operations.

SearchStorage
  • VRAM (video RAM)

    VRAM (video RAM) refers to any type of random access memory (RAM) specifically used to store image data for a computer display.

  • PCIe SSD (PCIe solid-state drive)

    A PCIe SSD (PCIe solid-state drive) is a high-speed expansion card that attaches a computer to its peripherals.

  • virtual memory

    Virtual memory is a memory management technique where secondary memory can be used as if it were a part of the main memory.

Close