high defintion vs standard definition

[cosycatus]

Can someone provide a simple explanation for the above.
Goggling around and all i got are terms like interlacing etc etc


what difference does it make if we record in either and use it on DVD or computer players?

[gneseew]

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.

[tommon]

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.

[KCBox]

HD will be this year talking around. Have been shooting HD in Taiwan. Great footage when playback.

[jaegersing]

Originally Posted by KCBox Great footage when playback.

I agree, but playback is still the big problem.

[sundazz]

Originally Posted by KCBox 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..

[KCBox]

I used V1 with profile setting.

[hpi3evo]

Originally Posted by jaegersing I agree, but playback is still the big problem.

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.

[lwm]

One of the easiest way is view the HD files through PS3.

[tommon]

V1 is HDV not true HD, that's 1440 x 1080. Under the HD broadcast standards footages must be 1920 x 1080i/p.

Thus HDV is not considered Broadcast HD. You will need to have EX1 or HDCAM or DVCPro HD or XDCAM can you call it HD. HDV is a totally different format.

[DXNMedia]

DV at 5x compression ratio also not considered broadcast quality...hmmmm...



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.

[jaegersing]

I thought 1280x720p was also considered an HD broadcast standard?

[ywh]

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!

[DXNMedia]

That's why Snell & Miranda upconverters are selling at prices of $100k or even more per rack unit.

[ywh]

And to think that some reckon that Magic Bullet stuff is ex...me included...

[crapex]

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

[crapex]

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

[kristian]

Originally Posted by tommon V1 is HDV not true HD, that's 1440 x 1080. Under the HD broadcast standards footages must be 1920 x 1080i/p. Thus HDV is not considered Broadcast HD. You will need to have EX1 or HDCAM or DVCPro HD or XDCAM can you call it HD. HDV is a totally different format.

HDCAM - 1440x1080
DVCPRO HD - 1440x1080 or 1280x1080
XDCAM - 1440x1080

[engr]

i think XDCAM is 1920x1080 or 1440x1080

[jaegersing]

Hi Crapex. Your post is not so accurate. Hope you don't mind my comments.

Originally Posted by crapex SD and HDV can both be recorded on mini-dvs if i`m not wrong..

SD covers all standard definition video, and can be recorded on VHS, Betacam, DV, miniDV etc etc. I think you mean DV format SD.

Originally Posted by crapex HD needs a p2 card.. then probably output to HDdvd or blueray cos it needs more space..

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.

Originally Posted by crapex 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.