Orthogonal Procrustes problems
Orthogonal Procrustes problems
This chapter discusses the principal forms of T, specifically the case where T is an orthogonal matrix Q; then X1 and X2 must have the same number of columns P. If the rows of X1 and X2 are regarded as giving the coordinates of points, then the orthogonal transformation leaves the distances between the points of each configuration unchanged; then the orthogonal Procrustes problem can be considered as rotating the configuration X1 to match the configuration X2 . The chapter also considers the special cases of orthogonal matrices that represent reflections in a plane (Householder transforms) and rotations in a plane (Jacobi rotations).
Keywords: Procrustes problems, orthogonal matrix, Householder transforms, Jacobi rotations
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