A Review of Tensors and Tensor Signal Processing

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Cammoun, L.Signal Processing Institute Ecole Polytechnigue Fédérale de Lausanne Switserland (author)

A Review of Tensors and Tensor Signal Processing

Article/chapterEnglish2009

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London :Springer London,2009
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LIBRIS-ID:oai:DiVA.org:liu-58092
https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-58092URI
https://doi.org/10.1007/978-1-84882-299-3_1DOI

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Language:English
Summary in:English

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Subject category:kap swepub-publicationtype

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Tensors have been broadly used in mathematics and physics, since they are a generalization of scalars or vectors and allow to represent more complex properties. In this chapter we present an overview of some tensor applications, especially those focused on the image processing field. From a mathematical point of view, a lot of work has been developed about tensor calculus, which obviously is more complex than scalar or vectorial calculus. Moreover, tensors can represent the metric of a vector space, which is very useful in the field of differential geometry. In physics, tensors have been used to describe several magnitudes, such as the strain or stress of materials. In solid mechanics, tensors are used to define the generalized Hooke’s law, where a fourth order tensor relates the strain and stress tensors. In fluid dynamics, the velocity gradient tensor provides information about the vorticity and the strain of the fluids. Also an electromagnetic tensor is defined, that simplifies the notation of the Maxwell equations. But tensors are not constrained to physics and mathematics. They have been used, for instance, in medical imaging, where we can highlight two applications: the diffusion tensor image, which represents how molecules diffuse inside the tissues and is broadly used for brain imaging; and the tensorial elastography, which computes the strain and vorticity tensor to analyze the tissues properties. Tensors have also been used in computer vision to provide information about the local structure or to define anisotropic image filters.

Subject headings and genre

TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik hsv//swe
ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering hsv//eng
Medical informatics
Medicinsk informatik

Added entries (persons, corporate bodies, meetings, titles ...)

Castano-Moraga, C.A.University of Las Palmas de Gran Canaria (author)
Munoz-Moreno, E.Univ. de Valladolid, Spain (author)
Sosa-Cabrera, D.University of Las Palmas de Gran Canaria (author)
Acar, B.University Istanbul (author)
Rodriguez-Florido, M.A.University of Las Palmas de Gran Canaria (author)
Brun, AndersLinköpings universitet,Medicinsk informatik,Tekniska högskolan(Swepub:liu)andbr03 (author)
Knutsson, HansLinköpings universitet,Medicinsk informatik,Tekniska högskolan(Swepub:liu)hankn25 (author)
Thiran, J.P.Signal Processing Institute Ecole Polytechnigue Fédérale de Lausanne Switserland (author)
Signal Processing Institute Ecole Polytechnigue Fédérale de Lausanne SwitserlandUniversity of Las Palmas de Gran Canaria (creator_code:org_t)

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In:Tensors in Image Processing and Computer VisionLondon : Springer London, s. 1-329781848822986

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