Fast and accurate image registration using Tsallis entropy and simultaneous perturbation stochastic approximation

S. Martin, G.H. Morison, W.H. Nailon, T.S. Durrani

Research output: Contribution to journalArticle

33 Citations (Scopus)


The Tsallis measure of mutual information is combined with the simultaneous perturbation stochastic approximation algorithm to register images. It is shown that Tsallis entropy can improve registration accuracy and speed of convergence, compared with Shannon entropy, in the calculation of mutual information. Simulation results show that the new algorithm achieves up to seven times faster convergence and four times more precise registration than using a classic form of entropy.
Original languageEnglish
Pages (from-to)595-597
Number of pages2
JournalElectronics Letters
Issue number10
Publication statusPublished - 2001



  • entropy
  • image registration
  • perturbation theory
  • stochastic processes

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