What is the cost of adding a constraint in linear least squares?. (arXiv:2201.09935v1 [cs.CV])

Web: http://arxiv.org/abs/2201.09935

Although the theory of constrained least squares (CLS) estimation is well
known, it is usually applied with the view that the constraints to be imposed
are unavoidable. However, there are cases in which constraints are optional.
For example, in camera color calibration, one of several possible color
processing systems is obtained if a constraint on the row sums of a desired
color correction matrix is imposed; in this example, it is not clear a priori
whether imposing the constraint leads …

arxiv cv least squares