On the use of nonadditive entropy to determine the presence of vibrations in the videos of JET cameras

Andrea Murari, Didier Mazon, A. Debrie

Research output: Contribution to journalArticle

1 Citation (Scopus)


In many domains where images are produced and acquired, the field of view of cameras can be subject to oscillations and movements, which can induce errors in the interpretation of the frame contents and can even jeopardize the analysis of the videos. The problem is particularly severe in applications such as nuclear fusion, in which, typically, no stable and reliable reference points exist within the camera fields of view to register the frames. A nonadditive form of entropy Sq, which is more sensitive to long-range correlations than the Shannon entropy, has been applied to the problem of automatically detecting such camera movements in the videos of a JET wide-angle infrared camera. A systematic analysis of the results, covering more than 110000 frames, has been undertaken, and the results obtained, reaching a total success rate of almost 97%, are more than satisfactory. © 2011 IEEE.
Original languageEnglish
Article number6029462
Pages (from-to)3364 - 3370
Number of pages7
JournalIEEE Transactions on Plasma Science
Issue number12 PART 2
Publication statusPublished - Dec 2011
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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