VP deinterlacing vs ATI 5xxx deinterlacing - AVS Forum
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post #1 of 4 Old 05-22-2010, 01:12 PM - Thread Starter
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I recently bought a Popcorn Hour A-200, which can output 480i for my SD DVD's (I couldn't do this with my HTPC--only 480p). So, I was able to finally see how my Lumagen VisionHDP's SD deinterlacing compared to my HTPC (ATI 5750) on SD DVD's that were upscaled to 1080p60 by the Lumagen (HTPC deinterlacing to Lumagen upscaling vs Lumagen deinterlacing & Lumagen upscaling). Using the NTSC file from the first post here to make the comparison showed that there is no comparison--the ATI's vector adaptive deinterlacing wins hands down.

Are the higher end DVDO's and Lumagen's better than the ATI's vector adaptive?
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post #2 of 4 Old 05-22-2010, 01:38 PM
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When you're talking about vector adaptive deinterlacing, you're talking about deinterlacing video material, not film material. Do you own so many video based DVDs, that it's worth the effort ?

Lumagen's Vision HDP is a SIL504-based processor which has only really sub-par video deinterlacing capabilities. The Lumagen Radiance has a Gennum VXP processor which is - of course - much better than the SIL504, but might still exhibit flaws in some scenes when the processor decides wrong between video and film deinterlacing (but can be set to fixed video in those cases).

DVDO / ABT's video deinterlacing scaling is excellent and wins against ATI's adaptive design in my opinion. For SD material is was first used in the ABT102 upgrade for the VP30. For 1080i HD Material it was first used in the VP50.
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post #3 of 4 Old 05-22-2010, 07:43 PM - Thread Starter
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Thanks for the info. Well, I just started watching X-files (around 200 episodes), and the poor deinterlacing by the Lumagen is very noticeable, and distracting (I've tried all modes on the Lumagen by the way). I'm not looking foward to seeing that for the next year or two. Having the PCH output 480p is not very good either. Most of my SD DVDs are TV series.

I am thinking about maybe getting an Edge. But, I'm cheap, and so I might just put up with what I have now.
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post #4 of 4 Old 05-24-2010, 12:13 AM
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Fudoh is correct. Note that the Silcon Image deinterlacer is over 10 years old technology in a product - the VisionHDP - that was designed over 6 years ago. It does not have diagonal filtering, which is what you are seeing.

In contrast, the Radiance line uses the "Gennum" (now Sigma) VXP diagonal deinterlacing and is extremely good at the per-pixel deinterlacing you are looking at.

The Radiance line of course adds a lot more features beyound deinterlacing. We have a trade-in program for HDP's if you want to consider upgrading to a Radiance processor email me at support@lumagen.com

Jim Peterson
Lumagen
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