Abstract
Point pattern matching is an essential step in many image processing
applications. This letter investigates the spectral approaches of point pattern
matching, and presents a spectral feature matching algorithm based on kernel partial
least squares (KPLS). Given the feature points of two images, we define position
similarity matrices for the reference and sensed images, and extract the pattern
vectors from the matrices using KPLS, which indicate the geometric distribution and
the inner relationships of the feature points. Feature points matching are done
using the bipartite graph matching method. Experiments conducted on both synthetic
and real-world data demonstrate the robustness and invariance of the algorithm.
© 2011 Chinese Optics Letters
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