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A green’s function-based Bi-dimensional empirical mode decomposition

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dc.contributor Universitat de Vic - Universitat Central de Catalunya. Grup de Recerca en Tractament de Dades i senyals
dc.contributor.author Al-Baddai, Saad
dc.contributor.author Al-Subari, Karema
dc.contributor.author Tomé, Ana Maria
dc.contributor.author Solé-Casals, Jordi
dc.contributor.author Lang, Elmar W.
dc.date.accessioned 2017-05-15T12:12:45Z
dc.date.available 2017-05-15T12:12:45Z
dc.date.created 2016
dc.date.issued 2016
dc.identifier.citation Al-Baddai, S., Al-Subari, K., Tomé, A. M., Solé-Casals, J., & Lang, E. W. (2016). A green's function-based bi-dimensional empirical mode decomposition. Information Sciences, 348, 305-321. es
dc.identifier.issn 0020-0255
dc.identifier.uri http://hdl.handle.net/10854/4994
dc.description.abstract Bidimensional Empirical Mode Decomposition (BEMD) interprets an image as a superposition of Bidimensional Intrinsic Mode Functions (BIMFs). They are extracted by a process called sifting, which encompasses two-dimensional surface interpolations connecting a set of lo- cal maxima or minima to form corresponding envelope surfaces. Existing surface inter- polation schemes are computationally very demanding and often induce artifacts in the extracted modes. This paper suggests a novel method of envelope surface interpolation based on Green’s functions. Including surface tension greatly improves the stability of the new method which we call Green’s function in tension -based BEMD (GiT-BEMD). Simula- tion results, using toy images with various textures, facial images and functional neuroim- ages, demonstrate the superior performance of the new method when compared to its canonical BEMD counterpart. GiT-BEMD strongly speeds up computations and achieves a higher quality of the extracted BIMFs. Furthermore, GiT-BEMD can be extended simply to an ensemble-based variant (GiT-BEEMD), if needed. In summary, the study suggests the new variant GiT-BEMD as a highly competitive, fast and stable alternative to existing BEMD techniques for image analysis. es
dc.format application/pdf
dc.format.extent 17 p. es
dc.language.iso eng es
dc.publisher Elsevier es
dc.rights Tots els drets reservats es
dc.rights (c) Elsevier
dc.subject.other Tractament del senyal es
dc.title A green’s function-based Bi-dimensional empirical mode decomposition es
dc.type info:eu-repo/semantics/article es
dc.identifier.doi https://doi.org/10.1016/j.ins.2016.01.089
dc.rights.accesRights info:eu-repo/semantics/closedAccess es
dc.type.version info:eu-repo/publishedVersion es
dc.indexacio Indexat a WOS/JCR es
dc.indexacio Indexat a SCOPUS es

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