Question 1 example 2
Problem 1: Recall (25pts, 5pts each)
Directions: Use only the space provided. (Answer in max 1-2 sentences where applicable).
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How many degrees of freedom does a 2D Affine transformation have? [3, 4]
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True or False: In a perfectly parallel stereo camera setup, the disparity between corresponding points is directly proportional to the object's depth in the 3D scene. [5, 6]
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What specific hardware filter arrangement is used to capture RGB colors using a single camera sensor array, typically consisting of alternating filters with 2 Green, 1 Red, and 1 Blue per block? [7]
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When training a linear classifier or neural network, what is the primary purpose of applying L2 Regularization to the loss function? [8]
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In image segmentation using graphs, briefly explain why the Normalized Cut (Ncut) criterion divides the standard cut penalty by the volume (association) of the regions. [9, 10]
Solutions:
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6 degrees of freedom. [3, 4]
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False. Disparity is inversely proportional to depth (objects closer to the camera move a greater distance across the visual field than objects far away) [5, 6].
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Bayer Filter (or Bayer Pattern). [7]
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It continuously pulls the weights down to penalize large weights, which encourages generalization and helps avoid overtraining. [8]
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It normalizes the inter-region cut to penalize degenerate, isolated single-node cuts, thereby encouraging more balanced segmentation sizes. [9-11]