Structure from Motion Quiz Form
Test your knowledge of Structure from Motion concepts and techniques. Please answer all questions to the best of your ability.
1. What is the primary goal of Structure from Motion?
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To reconstruct 3D structure from a set of 2D images
To enhance image resolution
To compress image data
To segment objects in images
2. Which of the following are required inputs for Structure from Motion? (Select all that apply)
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Multiple overlapping images
Camera calibration data
3D ground truth model
Feature correspondences
3. Rate your confidence in identifying camera poses using Structure from Motion.
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1
2
3
4
5
4. Which algorithm is commonly used for feature matching in Structure from Motion?
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SIFT
JPEG
K-means
Fourier Transform
5. Structure from Motion estimates both scene structure and:
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Camera motion
Lighting conditions
Object colors
Sensor noise
6. Match each term to its correct description.
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Rows
Description
A point of interest detected in an image
Keypoint
Bundle Adjustment
Epipolar Geometry
Triangulation
Optimization process refining 3D points and camera parameters
Keypoint
Bundle Adjustment
Epipolar Geometry
Triangulation
Relationship between two views of the same scene
Keypoint
Bundle Adjustment
Epipolar Geometry
Triangulation
Estimating 3D point from two or more images
Keypoint
Bundle Adjustment
Epipolar Geometry
Triangulation
7. Which step comes first in a typical Structure from Motion pipeline?
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Feature detection
Bundle adjustment
3D reconstruction
Camera pose estimation
8. Select all challenges commonly faced in Structure from Motion.
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Moving objects in the scene
Poor image overlap
Consistent lighting
Featureless surfaces
9. Briefly explain why feature matching is critical in Structure from Motion.
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10. What is one real-world application of Structure from Motion?
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