high defintion vs standard definition
- Thread starter cosycatus
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Simple terms:
HD = High Definition, capturing more resolution than SD (Full HD = 1920 x 1080 pixels)
SD = Standard Definition (720 x 576 pixels)
The difference depends on the output that we need, if in DVD i think practically can't see much of a difference cause we need to put it back to 720 x 576 pixels. But if output to computer, should be able to see much more details in HD.
HD = High Definition, capturing more resolution than SD (Full HD = 1920 x 1080 pixels)
SD = Standard Definition (720 x 576 pixels)
The difference depends on the output that we need, if in DVD i think practically can't see much of a difference cause we need to put it back to 720 x 576 pixels. But if output to computer, should be able to see much more details in HD.
Besides Pixel counts, the image is also display format is also different.
HD is 16:9 or cinema scope / wide screen in layman's term
SD is 3:4 tho you can output to 16:9 is primarily shot on 3:4 your normal CRT or CTV screen size.
There's also lot more in terms of technical specs which I bother.
You can try http://en.wikipedia.org/wiki/Main_Page
or http://en.wikipedia.org/wiki/Full_HD
They have more stuff on this question.
HD is 16:9 or cinema scope / wide screen in layman's term
SD is 3:4 tho you can output to 16:9 is primarily shot on 3:4 your normal CRT or CTV screen size.
There's also lot more in terms of technical specs which I bother.
You can try http://en.wikipedia.org/wiki/Main_Page
or http://en.wikipedia.org/wiki/Full_HD
They have more stuff on this question.
jaegersing
Deregistered
Great footage when playback.
I agree, but playback is still the big problem.
HD will be this year talking around. Have been shooting HD in Taiwan. Great footage when playback.
just curious.. wat cam u was using for ur HD shoot in TW?
cheers..
yah agree, also waiting for the Blu ray player , recorder & BD blank disk to release .if not
cant take full advantage of Full HD viewing pleasure.:cry:
DV at 5x compression ratio also not considered broadcast quality...hmmmm... :think:
:bsmilie:
Anyways, if you're talking about local HD broadcast, there are still lots of programs in native SD that are being upconverted to HD.
My observation is that upconverted source from DigiBeta is still acceptable in terms of image quality & resolution, but DVCPro & DV25 sources that are upconverted sticks out like a sore thumb in HD.
Workarounds with HDV resolution by blowing up 1440 to 1920, though strongly not recommended, is still acceptable as compared to blowing up from SD footage.
If my memory did not fail me, HD tech specs from international broadcasters only allow like 5%~10% footage that are upconverted from HDV/SD sources.
:thumbsup:
:bsmilie:
Anyways, if you're talking about local HD broadcast, there are still lots of programs in native SD that are being upconverted to HD.
My observation is that upconverted source from DigiBeta is still acceptable in terms of image quality & resolution, but DVCPro & DV25 sources that are upconverted sticks out like a sore thumb in HD.
Workarounds with HDV resolution by blowing up 1440 to 1920, though strongly not recommended, is still acceptable as compared to blowing up from SD footage.
If my memory did not fail me, HD tech specs from international broadcasters only allow like 5%~10% footage that are upconverted from HDV/SD sources.
:thumbsup:
jaegersing
Deregistered
I thought 1280x720p was also considered an HD broadcast standard?
HDV is still HD at the end of the day. Im using the XDcam 350 for work and yes, the image looks good but like all cameras, you will need to customize the look somewhat as the factory defaults are safe but flat.
As a side note, some footage from the superb Planet Earth docu series was Digi Beta upconverted to match those of the HD and 35mm. If that is shocking, I have seen photos of PD-170s in use for the docu!
As a side note, some footage from the superb Planet Earth docu series was Digi Beta upconverted to match those of the HD and 35mm. If that is shocking, I have seen photos of PD-170s in use for the docu!
SD then HDV then HD
SD and HDV can both be recorded on mini-dvs if i`m not wrong..
HD needs a p2 card.. then probably output to HDdvd or blueray cos it needs more space..
HD has the highest pixel count.. then HDV.. then SD
note also the 1920x1080P or1920x1080I.. one is progressive (every frame is like a snapshot or a photograph) one is interlace (lines running across in layman terms).. somehow i feel that progressive is better
SD and HDV can both be recorded on mini-dvs if i`m not wrong..
HD needs a p2 card.. then probably output to HDdvd or blueray cos it needs more space..
HD has the highest pixel count.. then HDV.. then SD
note also the 1920x1080P or1920x1080I.. one is progressive (every frame is like a snapshot or a photograph) one is interlace (lines running across in layman terms).. somehow i feel that progressive is better
SD then HDV then HD
SD and HDV can both be recorded on mini-dvs if i`m not wrong..
HD needs a p2 card.. then probably output to HDdvd or blueray cos it needs more space..
HD has the highest pixel count.. then HDV.. then SD
note also the 1920x1080P or1920x1080I.. one is progressive (every frame is like a snapshot or a photograph) one is interlace (lines running across in layman terms).. somehow i feel that progressive is better
SD and HDV can both be recorded on mini-dvs if i`m not wrong..
HD needs a p2 card.. then probably output to HDdvd or blueray cos it needs more space..
HD has the highest pixel count.. then HDV.. then SD
note also the 1920x1080P or1920x1080I.. one is progressive (every frame is like a snapshot or a photograph) one is interlace (lines running across in layman terms).. somehow i feel that progressive is better
jaegersing
Deregistered
Hi Crapex. Your post is not so accurate. Hope you don't mind my comments.
SD covers all standard definition video, and can be recorded on VHS, Betacam, DV, miniDV etc etc. I think you mean DV format SD.
HD also comes in different formats. For example, there are several AVCHD camcorders around that record in 1920x1280. They are using HDD or a more up-to-date type of flash memory, not P2.
Yes you can output to HDDVD or Blueray, but sadly at the moment, most people are probably downconverting to SD DVD for distribution, or uploading HD video to sites like VIMEO. The HD disc players (and recorders) need to come down a lot in price before they will catch on.
"lines running across" is not "layman terms", it's just wrong. Interlaced video should not have lines running across if your workflow is correct. And whether progressive is "better" depends on the footage and the intended production. 25p does not capture fast motion as well as 50i, and does not handle slo-mo well either. Of course 50p is another subject, but so far not many affordable cameras can shoot 50p.
SD covers all standard definition video, and can be recorded on VHS, Betacam, DV, miniDV etc etc. I think you mean DV format SD.
HD also comes in different formats. For example, there are several AVCHD camcorders around that record in 1920x1280. They are using HDD or a more up-to-date type of flash memory, not P2.
Yes you can output to HDDVD or Blueray, but sadly at the moment, most people are probably downconverting to SD DVD for distribution, or uploading HD video to sites like VIMEO. The HD disc players (and recorders) need to come down a lot in price before they will catch on.
note also the 1920x1080P or1920x1080I.. one is progressive (every frame is like a snapshot or a photograph) one is interlace (lines running across in layman terms).. somehow i feel that progressive is better
"lines running across" is not "layman terms", it's just wrong. Interlaced video should not have lines running across if your workflow is correct. And whether progressive is "better" depends on the footage and the intended production. 25p does not capture fast motion as well as 50i, and does not handle slo-mo well either. Of course 50p is another subject, but so far not many affordable cameras can shoot 50p.
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