Progressive segmented frame: Difference between revisions

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PsF is utilized in some [[DV]], [[HDV]] and [[AVCHD]] camcorders for 25-frame/s and 30-frame/s progressive-scan recording, and can be called ''Progressive recording'' (Sony), ''Progressive scan mode'' (Sony), ''Frame mode'' (Panasonic and Canon), ''Digital Cinema mode'' (Panasonic) or ''Cinema mode'' (Canon). Consumer and many professional camcorders do not use PsF to record 24-frame/s video; instead they either record it natively in progressive form or apply [[Telecine#23pulldown|2:3 pulldown]].
 
===Sony's "Frame shutter mode"===
 
"Frame shutter mode" or "progressive shutter mode" is [[Sony]]'s [[trademark]]ed [[progressive scan]] [[charge-coupled device]] (CCD) mode for video cameras. This mode allows full-frame acquisition with conventional [[interlaced video|interlaced]] field output. It is conceptually identical to PsF, except PsF is used in [[high definition]] video, while "frame shutter mode" is used by Sony for its [[standard definition]] products.
 
In frame shutter mode, a camera acquires 30 ([[NTSC]]) or 25 ([[PAL]]) independent images per second. These images are output as 60 (NTSC) or 50 (PAL) interlaced fields. The result is a progressive-scan signal, which is also compatible with traditional interlaced scanning systems.
 
Sony used frame shutter mode, later renamed to ''progressive recording'', in several consumer products. For example, the DCR-HC96 [[camcorder]] is capable of shooting in 30p progressive mode; its European cousin, the DCR-HC96E, has matching 25p progressive mode.
 
The operating guide for a 60 Hz ("NTSC") Sony DCR-HC96 camcorder describes the progressive recording mode as follows: