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An efficient exact algorithm for the ''least squares'' image registration problems

Technical Report ·
DOI:https://doi.org/10.2172/6125034· OSTI ID:6125034
Image registration involves estimating how one set of n-dimensional points is rotated, scaled, and translates into a second set of n- dimensional points. In practice, n is usually 2 or 3. We give an exact algorithm to solve the ''least-squares'' formulation of the two-dimensional registration problem. The algorithm, which is based on parametric linear programming, can be viewed as a refinement of the O(k/sup 3/) approximation method proposed by Zikan and Silberburg. The approach can be extended to handle registration of images of different cardinalities. 13 refs., 1 fig.
Research Organization:
Stanford Univ., CA (USA). Systems Optimization Lab.
DOE Contract Number:
FG03-87ER25028
OSTI ID:
6125034
Report Number(s):
SOL-89-5; ON: DE89013116
Country of Publication:
United States
Language:
English