Optical Tomography

Abstract

The number of applications using optical tomography has significantly increased over the past decade. A literature research providing this term as keyword gives 26 hits for 1990, 719 for 2000, and 9,202 for 2010. With an increasing number of applications, the number of different imaging modalities is also increasing. This review summarizes recent developments in tomographic methods for scattering and nonscattering samples. These two different cases of optical tomography are typically represented by biomedical imaging and atmospheric tomography, representing high- and low-scattering samples, respectively. An essential prerequisite for tomographic analyses is an understanding of light propagation in different media, which allows for the development of specific reconstruction algorithms for the different tomographic tasks.

Color optical biopsy

“…Future development of digital recording media will allow it to be utilized in this manner. Figure3 'True color optical biopsy' holographic reconstruction (1) of cultured human endothelial cells (2). Hologram (3) of onion cells (4) both at twenty times magnification, also illustrated in (5) and (6) illustrated at ten times magnification.…”

“…Holographic microscopy in cellular imaging has emerged in recent years as a new tool for medical imaging application [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Current techniques allow imaging of very thin layers of scattering media.…”

A study of the radiative transfer equation using a spherical harmonics-nodal collocation method

“…Expansions (2) and (3) and the orthogonality properties of Y m l are then used into (1). Let us consider the first term in (1), that accounts for photons removed by leakage in direction Ω. If Ω ∇Φ( r, Ω) =…”

“…Optical tomography, also referred to as diffuse optical tomography, has made considerable advances in recent years [1,2]. This field is concerned with the use of visible and near-infrared light for diagnosis and treatment of biological tissues.…”

A Normalized Parameter for Similarity/Dissimilarity Characterization of Sequences

“…Optical tomography is an attractive tool for remote analysis in various fields (Haisch, 2012). The inverse problem of reconstruction of 3D structures from the 2D images obtained by the imaging system might benefit from the symmetries of the object of interest; in particular, for the axially symmetric objects, a single projection is sufficient for reconstruction (Bracewell, 1956;Deans, 2000).…”