Camera Control in AI Video Generation Quiz

Answers and explanations appear as you take the quiz.

1. What visually separates a dolly from a zoom?
   • A zoom always moves left to right
   • A dolly moves the camera and creates parallax, while a zoom changes focal length without parallax
   • A dolly changes focal length only
   • They are identical
2. What does a Plücker embedding encode for each pixel?
   • Its color value
   • Its depth in meters
   • The object label at that pixel
   • The viewing ray from the camera pose, as (o × d, d)
3. Why is precise camera control hard to learn from typical training videos?
   • Most videos have no camera labels, and captions rarely describe camera motion accurately
   • Videos are always filmed on tripods
   • Camera motion cannot be seen in video
   • Training videos have no frames
4. What is a limitation of pose-annotated datasets like RealEstate10K?
   • They contain no camera poses
   • They are audio-only
   • They are narrow in domain and mostly show static scenes
   • They only include animated films
5. How can you measure whether a generated video followed the requested camera path?
   • Count the number of frames
   • Run structure-from-motion on the output and compare the recovered path using rotation and translation errors
   • Check the file size
   • Ask the model to describe its camera
6. What does scale ambiguity mean for camera control?
   • Videos cannot be resized
   • Zooming always fails
   • Pixels have no color scale
   • Monocular video has no absolute scale, so distances like 'two meters' are undefined without normalization
7. How does CameraCtrl add camera conditioning to a video model?
   • It trains an adapter on pose-annotated clips while the base model stays frozen
   • It retrains the entire model from scratch
   • It edits frames after generation
   • It uses text prompts only
8. Which prompting practice gives more reliable camera moves in prompt-based tools?
   • Request several moves at once
   • Describe only the subject
   • Ask for one move per shot, state its speed, and keep subject motion simple
   • Avoid all camera words