Frame Search - jhogsett/EMA-VFI-WebUI GitHub Wiki

Frame Search - Use AI to interpolate between frames at precise times

Uses

• Create a between frame at a precise time between two frames
• Recreate a frame that can't easily be created with Frame Interpolation
  • See Frame Restoration for automatic recreation of adjacent frames

How It Works

1. Drag and drop, or click to upload Before Frame and After Frame PNG files
2. Choose a Lower Bound and Upper Bound for the search
   • The values must be between 0.0 and 1.0
3. Set Search Precision per the desired timing accuracy
   • Low is faster but can lead to a poorly-timed frame
   • High produces near-perfect results but takes longer
4. Click Search
5. The Found Frame panel will show the new frame
6. The Download box gives access to
   • The found frame PNG file

Understanding Frame Search

Frame Search finds frames at precise times through a binary search process

• A series of time divisions are made, splitting the remaining time toward the search target
• A new interpolated work frame is created each time
• The last work frame is returned when the search target is found, of if the search depth is reached

Example Shallow Search for 2/3:

• Search precision is 3, search range is 0.666666666 to 0.666666668
  • Split #1 creates a work frame at 0.5
  • Split #2 creates a work frame at 0.75
  • Split #3 creates a work frame at 0.625
• The frame produced at 0.625 is returned as the closest match

Example High Precision Search for 2/3:

• Search Precision is 10, search range is 0.666666666 to 0.666666668
  • Work frames are created at:
  • 0.5, 0.75, 0.625, 0.6875, 0.65625, 0.671875, 0.6640625, 0.66796875, 0.666015625 and 0.6669921875
• The frame produced at 0.6669921875 is returned as the closest match

Example Deep Search for 2/3:

• Search Precision is 60, search range is 0.66666666666666666666 to 0.66666666666666666668
• The frame produced at 0.66666666666666662965923251249478198587894439697265625 is returned