4HORN B K P. Closed-form Solution of Absolute Orientation Using Unit Quatenions [ J]. Optical Society of America, 1987,4 (4) : 629-642.
5GONG Zi-kun. The Least-Square Solutions to the Quaternion Matrix Equation Systems[J]. Jourmal of Southwest China Normal University (Natural Science Edition), 2004, 29(5) :749-752.