Computer Vision Primer
Homography Primer — Describing Planar Correspondence With a Single 3x3 Matrix
A homography is the relation that ties together points on the same plane, or the view of a purely rotating camera, using a single 3x3 projective transform. This article covers DLT-based estimation, robustification with RANSAC, decomposition into rotation, translation, and plane normal, and when to use it versus epipolar geometry, alongside applications like image stitching and AR plane tracking, with equations and diagrams.