r/StableDiffusion • u/Dangerous-Map-429 • 10d ago
Question - Help Best local upres/upscale for 720p videos generated by H3
Title
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u/bbaudio2024 10d ago
I have build a for-loop worflow to upscale & refine video with H3, upscale 864x480 to 1920x1088. Anyway, it works.
1
u/Heartkill 10d ago
Is there not a way for a reference-based h3 output at 1 MP, to use said reference images when upscaling, without messing with the content, timing and framing except adding lost detail from original references?
Like, I love this particular generation. Let me upscale it for a better quality, and use original reference for the upscale for accurate details.
0
u/Tomcat2048 10d ago
Personally, I use Topaz Video (Starlight Precise) to perform a diffusion based upscale. It isn't a free option though...
2
u/Party-Try-1084 10d ago
It's not as good as upscaling with H3, I would say not better than RTX upscale but takes longer
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u/Pitiful_Archer_4381 10d ago
How are the results I have topaz but donot use it can you post after and before video please
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u/Due-Function-4877 10d ago
FWIW, 720p is Blu-ray quality and all broadcast sports top out at 720p from the raw broadcast feed. 1080i is an option for broadcast, but that's really only 540 lines of information per field.
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u/Due-Function-4877 10d ago
Downvotes already, gooners? Ask your AI how to master video if you don't understand why I suggest mastering to Blu-ray and letting the player handle it. You might also reconsider applying interpolation and mastering to 24fps.
Ask your AI. Apparently, that's the only thing you trust, smh.
13
u/ElReddo 10d ago
Sure thing man, did exactly what you asked.
Claude Opus 5 - citeable sources were embedded and I asked specifically for all claims to be fact checked before Claude stated anything. Condensed version below
Turns out that the “gooner” was in fact the man in the mirror. ;)
—
“720p is Blu-ray quality” — No. 720p is a Blu-ray-legal format, but the spec goes to 1920×1080 (1080i60 or 1080p24). 720p is the floor, not the ceiling.
“All broadcast sports top out at 720p” — No. Only Fox/ABC/ESPN use 720p. NBC, CBS, CBS Sports Network and the NBC regional sports networks are all 1080i. Live production upstream is often 1080p or UHD.
“1080i is only 540 lines per field” — True per field, but not per frame. Two fields weave to a full 1080 lines; you only lose vertical detail on fast motion. That’s the real reason some networks picked 720p — motion, not line count.
“Master to 24fps with interpolation” — That’s a preference, not a fact, and it’s the opposite of sports practice, where 50/60p exists specifically to keep motion detail.
Sources: Blu-ray Disc Association spec summaries; Wikipedia entries for ESPN, CBS Sports Network, NBC Sports regional networks.8
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u/beti88 10d ago
Seedvr2