Education, Artificial Intelligence, Computer Vision.
which we’ll use in camera calibration. Before that, there is an important theorem you need to know: If 𝐴 is any rectangular matrix, then 𝐴⊺𝐴 is a positive definite matrix. Let 𝐴 be a rectangular matrix of shape 𝑚 x 𝑛, and we want to find the minimum value of |𝐴𝑥⃗| where 𝑥⃗ is any vector of size 𝑛