HL-OutPaint: Coarse-to-Fine Video Outpainting for High-Resolution Long-Range Videos

Researchers introduced HL-OutPaint, a two-stage video outpainting framework for high-resolution, long-range video extension.

It first builds a low-resolution global view with a global-local frame swapping mechanism, then refines it into detailed high-resolution frames.

The method aims to keep both spatial expansion and temporal coherence stable over long sequences.

This could help with format adaptation and generating high-quality synthetic videos at large scales.