Video Frame Interpolation Quiz

Answers and explanations appear as you take the quiz.

1. What does video frame interpolation add to a video clip?
   • To generate new in-between frames to increase frame rate or create slow motion
   • To compress video files
   • To add subtitles automatically
   • To convert color video to black and white
2. Why can't interpolation simply average (blend) two adjacent frames?
   • Blending is too slow
   • Moving objects would produce ghosting or double images
   • It would change the colors
   • Averaging deletes audio
3. What is optical flow in the context of frame interpolation?
   • The brightness of the video
   • The audio volume curve
   • A per-pixel map of how things move between frames
   • The file's compression ratio
4. Why do models like DAIN incorporate depth information?
   • To make the video brighter
   • To reduce file size
   • To add a watermark
   • To handle occlusion so nearer objects correctly cover farther ones
5. What does 'disocclusion' refer to as a challenge in interpolation?
   • Newly revealed background that must be plausibly filled in
   • Removing audio noise
   • Overheating of the GPU
   • Color correction
6. What does the RIFE paper target in its frame-interpolation design?
   • A model that classifies actions without generating frames
   • A fast intermediate-flow estimation method for synthesizing frames between two inputs
   • A system that only increases video resolution
   • A codec that removes motion from a clip
7. How does Super SloMo estimate an intermediate frame?
   • It simply averages the two input frames
   • It repeats one frame and changes its color
   • It predicts bidirectional optical flow and visibility maps to warp the input frames
   • It generates a transcript and maps words to pixels
8. What training technique does the RIFE paper use to stabilize IFNet training?
   • A GAN that generates audio waveforms
   • A fixed optical-flow lookup table
   • A class-specific prior-preservation loss
   • A privileged distillation scheme