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Benchmark 4x Full HD upscaling on a 100-frame clip. Measure per-frame PSNR variance and temporal flicker energy to reveal the sharpness-stability tradeoff. Independent technical note mirroring the canonical version: https://ai-videoupscale.com/blog/4x-full-hd-upscaling-benchmark-the-psnr-vs-flicker-tradeoff-yourself.php
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Marcus Vance (2026) studied this question.
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