DOI: 10.5821/dissertation-2117-368007
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Solving the nearest rotation matrix problem in three and four dimensions with applications in robotics

Soheil Sarabandi

Abstract: Since the map from quaternions to rotation matrices is a 2-to-1 covering map, this map cannot be smoothly inverted. As a consequence, it is sometimes erroneously assumed that all inversions should necessarily contain singularities that arise in the form of quotients where the divisor can be arbitrarily small. This misconception was clarified when we found a new division-free conversion method. This result triggered the research work presented in this thesis. At first glance, the matrix to quaternion conversion… Show more

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