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. Author manuscript; available in PMC: 2010 Mar 1.
Published in final edited form as: IEEE Trans Biomed Eng. 2008 Sep 30;56(3):916–919. doi: 10.1109/TBME.2008.2005953

Fig. 2.

Fig. 2

Objective function for the superposition in Fig. 1. For clarity, it is plotted upside down, so that the peaks correspond to good alignments. (a) The central peak. The known-constituent PSO algorithm successfully located the global minimum (circle), which was very close to the true alignment (star). (b) A wider region. In both plots the grid interval is 0.1 ms.