2. Tutorials

• 2.1. Causes of distortion
• 2.2. Methods for correcting distortions
  • 2.2.1. Introduction
  • 2.2.2. Extracting reference-points from a calibration image
    • 2.2.2.1. Pre-processing techniques for a dot-pattern image
    • 2.2.2.2. Pre-processing techniques for a line-pattern image
    • 2.2.2.3. Pre-processing techniques for a chessboard image
  • 2.2.3. Grouping reference-points into horizontal lines and vertical lines
  • 2.2.4. Calculating the optical center of radial distortion
  • 2.2.5. Correcting perspective effect
  • 2.2.6. Calculating coefficients of a polynomial model for radial-distortion correction
  • 2.2.7. Calculating coefficients of a correction model for perspective distortion
  • 2.2.8. Correcting a distorted image
  • 2.2.9. Summary