CS1674: Homework 3 - Written

Due: 2/6/2018, 11:59pm

This assignment is worth 15 points.
  1. [3 pts] How are feature distinctiveness and feature repeatability at odds with each other? Why is each of those properties desirable (in moderation)?
  2. [3 pts] Describe the process of extracting the locations of corners from images, starting with the use of image gradients, and ending with thresholding the R scores.
  3. [3 pts] How can I detect a keypoint by examining an auto-correlation surface?
  4. [3 pts] What is the difference between invariance and covariance?
  5. [3 pts] Why do we say that the Harris corner detector is not scale-invariant?