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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.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 http://dx.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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