High Def TV question

[plifter]

When I'm watching old movies in HD, how do they get into HD format since HD cameras are new? Do they just upconvert the old movies by interpolating pixels?

 

[mrplunkey]

If your DVD player has component outputs, I think they can up-sample (or something like that) to improve your resolution above the NTSC (old) standard. The interpolated resolution still isn't as high-def as true HD. It takes a next-generation HD player (i.e. blue-ray) to get true HD I think.

If your DVD player has old-fashoned outputs like S-video or cable, I'm pretty sure it's just streaching a true NTSC signal across a HD screen.

I could be wrong.

 

[jenscats5]

It's magic.......




Seriously - first you change from analog to digital, then the analog frequency rate is sampled & doubled (or whatever) - well, something like that.....

 

[PICK3]

it's the mirrors

 

[plifter]

Thanks, but I was referring to movies being broadcast on one of the few HD channels, not DVD movies. I know there are DVD players with upconverters.

 

[mrplunkey]

ahhh... I didn't understand that.

I guess it would depend on the movie and the broadcaster's format. In theory they could use anything from an old NTSC tape to some fancy digital format.

That's a really good question.