Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Progressive segmented frame
open-in-new
<p>Progressive segmented Frame (PsF, sF, SF) is a scheme designed to acquire, store, modify, and distribute <a href="/facts/Progressive_scan/HqMvzpoV">progressive scan</a> video using <a href="/facts/Interlaced/YBk246TF">interlaced</a> equipment. </p><p>With PsF, a progressive frame is divided into two <i>segments</i>, with the odd lines in one segment and the even lines in the other segment. Technically, the segments are equivalent to interlaced <i>fields</i>, but unlike native interlaced video, there is no motion between the two fields that make up the video frame: both fields represent the same instant in time. This technique allows for a progressive picture to be processed through the same electronic circuitry that is used to store, process and route interlaced video. </p><p>The term <i>progressive segmented frame</i> is used predominantly in relation to <a href="/facts/High-definition_video/3CoUBum1">high definition</a> video. In the world of <a href="/facts/Standard-definition_video/dvqEXg2A">standard-definition video</a>, which traditionally has been using interlaced scanning, it is also known as <i>quasi-interlace</i>, <i>progressive recording</i> or <i>movie mode</i>. Other names for PsF used by electronic equipment manufacturers include <i>progressive recording</i> (Sony), <i>progressive scan mode</i> (Sony), <i>progressive shutter mode</i> (Sony), <i>frame shutter mode</i> (Sony), <i>frame mode</i> (Panasonic and Canon), <i>Digital Cinema</i> (Panasonic), <i>Pro-Cinema</i> (Panasonic) and <i>Cinema mode</i> (Canon). </p>