Video upscaling: frames and flicker

Video upscaling must keep detail consistent across frames or it flickers. Look for temporal models, scene-change handling and a sane render pipeline - and upscale on the master, not the edit.

Stills are easy, frames are hard

Upscale a video frame by frame and you get shimmer: each frame invents slightly different detail, and the result flickers like heat haze.

The fix is temporal consistency - models that compare neighboring frames so the invented texture stays put. When comparing video upscalers, watch for:

• Temporal models versus frame-by-frame with flicker filters bolted on.
• Scene changes - detail continuity should reset at cuts, not smear across them.
• Render pipeline - upscale the master, then conform the edit; never upscale an already-compressed export.