Progressive vs. Interlaced ??? - DVDfile.com forum for DVD, Blu-Ray, and HD-DVD

Iguana Man · 11-25-2004, 12:14 AM

Can you tell me the basics, then get down and dirty on which generally looks better given different displays?

(Denon DVD-3910 -->component-->Sanyo Z2 LCD PJ)

When switching between progressive and interlaced, what exactly should I look for as far as picture quality differences?

Sycho · 11-25-2004, 04:12 AM

well, on a progresive display, progresive *should* look better, but you never know, most times on my semi HTPC, I don't even deinterlace.

also try materical created in interlace and simlar materal that is progresive

Vonner · 11-25-2004, 04:39 AM

Quote:

Originally Posted by Iguana Man

When switching between progressive and interlaced, what exactly should I look for as far as picture quality differences?

Little black horizontal lines across the entire picture. I know that I could see them before I got a progressive player. I can still see them when I watch a movie on someone else's player if it's interlaced.

storm117 · 11-25-2004, 04:43 AM

Hey.

Well, the basics. An image is comprised of fields, odd and even lines. The odd lines of an image are displayed on the screen from top to bottom. Then the even lines are displayed, again top to bottom. Both odd and even interlaced fields are displayed at 1/60 of a second. You are seeing the entire image combined (odd and even lines) at 1/30 of a second. 60 fields per second or 30 frames per second...it's actually 29.97fps, but anyway.

A progressive signal, 720p for example, is displayed on your screen without the odd and even lines. Instead the entire image is displayed at once with a rate of 30fps.

I've got the 3910 as well, HDMI -> KD-34XBR960. When I switch between 480i to 720p or 1080i for example, there's a tremendous increase in picture quality. You're going to notice a reduction in aliasing or "jaggies" throughout the entire image right away.

Hope you're enjoying your 3910!

I'm loving mine, simply amazing player.

tomdkat · 11-29-2004, 10:36 PM

Iggy, you're killing me...

Peace....

Sycho · 11-29-2004, 10:47 PM

maybe some nood took his identity, and felt the need to use his dvdfile forum account

Iguana Man · 11-29-2004, 10:51 PM

Quote:

Originally Posted by tomdkat

Iggy, you're killing me...

Peace....

Well before I do, can you put me in your will for those Pioneer speakers?

Thanks for the link....more reading.......you realize I killed far too many brain cells in high school for this stuff?

tomdkat · 11-29-2004, 10:56 PM

Quote:

Originally Posted by Iguana Man

Thanks for the link....more reading.......you realize I killed far too many brain cells in high school for this stuff?

Dood, that page has pictures....

Animated ones at that!

Peace...

11-25-2004, 12:14 AM	#1 (permalink)
Iguana Man Ex-BadHumor Man Join Date: May 2002 Location: New Jersey, USA	Progressive vs. Interlaced ??? Can you tell me the basics, then get down and dirty on which generally looks better given different displays? (Denon DVD-3910 -->component-->Sanyo Z2 LCD PJ) When switching between progressive and interlaced, what exactly should I look for as far as picture quality differences? __________________ Get outside and have fun! Nacho Website Focus

11-25-2004, 04:12 AM	#2 (permalink)
Sycho I needs to show ID with a personal check Join Date: Dec 2003	well, on a progresive display, progresive should look better, but you never know, most times on my semi HTPC, I don't even deinterlace. also try materical created in interlace and simlar materal that is progresive __________________ On the bed, on the floor, on the towel by the door. In the tub, in the car, up against the mini-bar.

11-25-2004, 04:43 AM	#4 (permalink)
storm117 Actor Join Date: Oct 2001 Location: Interzone.	Hey. Well, the basics. An image is comprised of fields, odd and even lines. The odd lines of an image are displayed on the screen from top to bottom. Then the even lines are displayed, again top to bottom. Both odd and even interlaced fields are displayed at 1/60 of a second. You are seeing the entire image combined (odd and even lines) at 1/30 of a second. 60 fields per second or 30 frames per second...it's actually 29.97fps, but anyway. A progressive signal, 720p for example, is displayed on your screen without the odd and even lines. Instead the entire image is displayed at once with a rate of 30fps. I've got the 3910 as well, HDMI -> KD-34XBR960. When I switch between 480i to 720p or 1080i for example, there's a tremendous increase in picture quality. You're going to notice a reduction in aliasing or "jaggies" throughout the entire image right away. Hope you're enjoying your 3910! I'm loving mine, simply amazing player. __________________ Exterminate all rational thought.

11-29-2004, 10:36 PM	#5 (permalink)
tomdkat Official Forum Warmonger "Dial Tone" Join Date: Sep 2000 Location: Hayward, CA, USA	Iggy, you're killing me... Peace.... __________________ My DVD Aficionado List "At last we shall reveal ourselves to the Jedi, at last we shall have revenge!"

11-29-2004, 10:47 PM	#6 (permalink)
Sycho I needs to show ID with a personal check Join Date: Dec 2003	maybe some nood took his identity, and felt the need to use his dvdfile forum account __________________ On the bed, on the floor, on the towel by the door. In the tub, in the car, up against the mini-bar.

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