Multi-dimensional Imaging

Chapter 16Spectropolarimetric Imaging Techniques with Compressive Sensing

Fernando Soldevila¹, Esther Irles¹, Vicente Durán^1,2, Pere Clemente^1,3, Mercedes Fernández-Alonso^1,2, Enrique Tajahuerce^1,2 and Jesús Lancis^1,2

¹GROC·UJI, Departament de Física, Universitat Jaume I, Spain

²Institut de Noves Tecnologies de la Imatge (INIT), Universitat Jaume I, Spain

³Servei Central d'Instrumentació Científica, Universitat Jaume I, Spain

16.1 Chapter Overview

The information that the human eye can provide is limited. Although we are able to see in a wide range of distances, under different light conditions, and in a relatively broad spectral range, in many applications it is necessary to acquire information far beyond the limits imposed by the human eye. To this end, a great variety of image techniques have been developed [1]. As an archetypical example, microscopy, which is essential in fields like biology or medicine, provides a tool for obtaining high-resolution images of very close objects [2]. Many of these imaging techniques share a common feature: they measure the intensity of the light coming from the scene under consideration. However, it is sometimes required to measure other physical quantities, like the phase of the optical field, its spectral content, or its polarization state. The spectral content of a sample is normally used to obtain information about its material components. Polarization, that is, the knowledge of the vector nature of light, gives information about surface ...