Mark,

The Panasonic stuff is marketing speak.

There are two issues at work.

1. The type of filter used for the upscaling. Most are probably using bilinear. Panasonic is using something better.
2. Most are using a horizontal low pass filter based on some outdated spec, to ensure they are down some dB by Nyquist. Panasonic is much smarter here.

I can assure you that what you get from the Panasonic is what the pattern(s) on my disc are supposed to look like.

Besides the 2nd row, last burst on the right, you can also look at the chroma zone plate. The left and right half of the image get dimmer on everything but the Panasonic. My original pattern was not dim on the edges.

Whay they are doing for video is no different than what Meridian is doing for audio with their apodizing filters. Its all about getting back to the original.

Its far easier to demo the loss of chroma on video than it is to demo 96 kHz audio vs. 48 kHz audio. smile

Quote
and so I'd personally rather not interpolate at all and simply display what has actually been sampled as that will more often that not be the more accurate image.

That is not possible. Chroma is co-sited with luma in the horizontal direction and interstitial in the vertical direction. If you don't properly scale (aka filter), you will end up with an uwatchable image.

Last edited by sspears; 2009-04-11 19:22.
Stacey Spears
Co-Creator, Spears & Munsil High Definition Benchmark, Blu-ray Edition and Lighthouses of the Pacific Northwest.