Progressive segmented frame: Difference between revisions

Content deleted Content added
Video recorders: Changed "signal" to "content" to underscore that progressive content is transmitted/recorded over interlaced signal.
Video recorders: Added info from HDV progressive primer.
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This is how Sony described the progressive recording mode in the operating guide for a 60 Hz ("NTSC") Sony DCR-HC96 camcorder:
 
{{quotation|'''Note on the progressive recording mode'''<br/>In a normal TV broadcast, the screen is divided into 2 finer fields and these are displayed in turn, every 1/60 of a second. Thus, the actual picture displayed in an instant covers only half of the apparent picture area. In progressive recording, the picture is fully displayed with all the pixels.|<ref name="DCR-HC36/HC46/HC96 OG PR"/>}}
 
The booklet for the 50&nbsp;Hz ("PAL") Sony DSR-PD175P camcorder describes its progressive recording mode as follows:
 
{{quotation|'''Progressive Scan Mode'''<br/>The 25p image captured by the sensor system is recorded as an interlaced signal by dividing each frame into two fields. This enables compatibility with current editing and monitoring equipment that only accept interlaced signals, while maintaining the quality of the 25p image.|<ref>{{cite web|url=http://www.sony.co.uk/biz/pdf/GeneratePDF.action?product=DSR-PD175P&site=biz_en_GB|title=DSR-PD175P: 1/3-inch 3 Exmor CMOS professional DVCAM camcorder}}</ref>}}
 
The HDV Progressive Primer whitepaper mentions Progressive Segmented Frame mode:
 
{{quotation|'''Progressive segmented Frame (PsF) recording'''<br/>Frame split into two segments and recorded using the same technique as interlace recording. PsF is a progressive signal that can be displayed on an interlace-only monitor. Used in “Progressive Scan” mode.<ref>{{cite book | title = HDV Progressive Primer | publisher = Sony | page = 9 | url = http://www.sony-asia.com/microsite/professional/hdv/pdf/HDV_Progressive_Primer.pdf}}</ref>}}
 
Consumer camcorders as well as most 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&nbsp;pulldown]].