Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Three-dimensional localization and optical imaging of objects in turbid media with independent component analysis

Not Accessible

Your library or personal account may give you access

Abstract

A new approach for optical imaging and localization of objects in turbid media that makes use of the independent component analysis (ICA) from information theory is demonstrated. Experimental arrangement realizes a multisource illumination of a turbid medium with embedded objects and a multidetector acquisition of transmitted light on the medium boundary. The resulting spatial diversity and multiple angular observations provide robust data for three-dimensional localization and characterization of absorbing and scattering inhomogeneities embedded in a turbid medium. ICA of the perturbations in the spatial intensity distribution on the medium boundary sorts out the embedded objects, and their locations are obtained from Green’s function analysis based on any appropriate light propagation model. Imaging experiments were carried out on two highly scattering samples of thickness approximately 50 times the transport mean-free path of the respective medium. One turbid medium had two embedded absorptive objects, and the other had four scattering objects. An independent component separation of the signal, in conjunction with diffusive photon migration theory, was used to locate the embedded inhomogeneities. In both cases, improved lateral and axial localizations of the objects over the result obtained by use of common photon migration reconstruction algorithms were achieved. The approach is applicable to different medium geometries, can be used with any suitable photon propagation model, and is amenable to near-real-time imaging applications.

© 2005 Optical Society of America

Full Article  |  PDF Article
More Like This
Three-dimensional imaging of objects embedded in turbid media with fluorescence and Raman spectroscopy

Jun Wu, Yang Wang, Lev Perelman, Irvine Itzkan, Ramachandra R. Dasari, and Michael S. Feld
Appl. Opt. 34(18) 3425-3430 (1995)

Clean image synthesis and target numerical marching for optical imaging with backscattering light

Min Xu, Yang Pu, and Wubao Wang
Biomed. Opt. Express 2(4) 850-857 (2011)

Three-dimensional object-distortion-tolerant recognition for integral imaging using independent component analysis

Cuong Manh Do, Raúl Martínez-Cuenca, and Bahram Javidi
J. Opt. Soc. Am. A 26(2) 245-251 (2009)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (13)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved