Maxwell Everett wrote:
the brief sequence I was talking about in the other thread. It looks like this was simply upscaled from SD, doesn't it? It's even more jarring in motion, actually.
Good catch! I can now see what you were talking about... those are scaling artifacts. For some reason the original shot (after being scanned from film) ended up with a vertical resolution of 540p, and they did a simple "Nearest Neighbor" enlargement to 1080p.
You can verify this by taking the TrekCore image into Photoshop and reducing the vertical resolution by half to 540 (uncheck "Constrain Proportions"). The image will now be squashed, but the "jaggies" will be gone. Now scale it back up to 1080 using "Nearest Neighbor"-- it will look the same as it did before.
I've wondered something similar since seeing that shot. It's kind of like they've taken one 1080i interlaced field which would be 1920 x 540 and then stretched it out to fill the whole frame.
In "The Battle" when Wesley is talking to Dr Crusher and Troi there's a really obvious interlaced shot lasting for several seconds at 32:57 and then a pixelated one at 33:02.
I've noticed interlaced and pixelated frames here and there in a number of episodes, they're difficult to spot but going frame by frame you can see them. I don't understand why they're there as the blu-rays should have been produced end to end in progressive scan. I wonder if it's some sort of bit stream flag issue.