Frame Interpolation

Frame interpolation uses optical flow estimation to synthesize intermediate frames, increasing the video frame rate. The most common use case is converting 24fps cinema content to 48fps or 60fps for smoother VR headset playback.

Target FPS

Select the desired output frame rate. The interpolation multiplier is calculated automatically based on the source frame rate. Common targets:

• 48fps: 2x cinema (24→48). Minimal artifacts, noticeable smoothness improvement.
• 60fps: Standard smooth. Good for VR headsets and high-refresh displays.
• 90fps: Quest native refresh rate. Requires 3.75x from 24fps — more interpolated frames, more artifact risk.
• 120fps: High-refresh or 4x slow-motion from 30fps source.

UHD mode

4K and higher resolution frames may exceed available VRAM during optical flow computation. UHD mode tiles the frame into overlapping patches, processes each tile separately, and blends the results. The output is seamless but processing is slightly slower than full-frame inference.

Scene-cut detection

Without scene-cut detection, the model tries to interpolate between the last frame of one shot and the first frame of the next, producing a bizarre cross-dissolve artifact. anelo detects shot boundaries during the scene analysis preflight and inserts duplicate frames at cuts instead of interpolated ones.