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<p><b>New page</b></p><div>[[Image:Indian_Head_interlace.gif|Indian Head interlace|thumb]] '''Progressive scan''' is a method used in video displays and broadcasting where each frame of a video is drawn sequentially from top to bottom. This contrasts with [[interlaced video]], where each frame is split into two fields, with one field containing the odd lines and the other containing the even lines.<br />
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==Overview==<br />
Progressive scan is often abbreviated as '''p''' (e.g., 720p, 1080p) and is a key feature in modern [[television]]s, [[computer monitors]], and [[digital video]] formats. It provides a smoother and more detailed image compared to interlaced video, especially for fast-moving images.<br />
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==History==<br />
The concept of progressive scan dates back to the early days of [[television technology]], but it became more prominent with the advent of [[digital television]] and [[high-definition television]] (HDTV). Early television systems used interlaced scanning to conserve bandwidth, but as technology advanced, the benefits of progressive scan became more apparent.<br />
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==Technical Details==<br />
In progressive scan, each frame is displayed in its entirety, which reduces flicker and provides a clearer image. This is particularly beneficial for [[computer graphics]], [[video games]], and [[sports broadcasting]], where motion clarity is crucial.<br />
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===Resolution===<br />
Progressive scan is often associated with specific resolutions:<br />
* '''480p''': Standard definition, commonly used in [[DVD]]s.<br />
* '''720p''': High definition, used in some [[HDTV]] broadcasts.<br />
* '''1080p''': Full high definition, widely used in [[Blu-ray]] discs and streaming services.<br />
* '''2160p''': Also known as [[4K resolution]], used in [[Ultra HD]] displays.<br />
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==Advantages==<br />
* **Improved Image Quality**: Progressive scan provides a sharper and more detailed image.<br />
* **Reduced Flicker**: By displaying the entire frame at once, progressive scan reduces flicker, which is common in interlaced video.<br />
* **Better Motion Handling**: Progressive scan handles fast-moving images better, making it ideal for sports and action-packed content.<br />
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==Applications==<br />
Progressive scan is used in various applications, including:<br />
* [[Television broadcasting]]<br />
* [[Computer monitors]]<br />
* [[Digital cinema]]<br />
* [[Video game consoles]]<br />
* [[Streaming services]]<br />
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==Comparison with Interlaced Video==<br />
While interlaced video was the standard for many years, progressive scan has become more prevalent due to its superior image quality. Interlaced video can suffer from artifacts such as [[combing]] and [[motion blur]], which are less common in progressive scan.<br />
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==Related Pages==<br />
* [[Interlaced video]]<br />
* [[High-definition television]]<br />
* [[Digital television]]<br />
* [[4K resolution]]<br />
* [[Computer monitor]]<br />
* [[Video game console]]<br />
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==See Also==<br />
* [[Display resolution]]<br />
* [[Frame rate]]<br />
* [[Video signal]]<br />
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[[Category:Television technology]]<br />
[[Category:Display technology]]<br />
[[Category:Digital television]]<br />
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