Výsledky vyhledávání

Accelerated gradient based diffuse optical tomographic image reconstruction

Autor: Biswas, Samir Kumar, Rajan, K, Vasu, RM

Publikováno v: IndraStra Global.

Purpose: Fast reconstruction of interior optical parameter distribution using a new approach called Broyden-based model iterative image reconstruction (BMOBIIR) and adjoint Broyden-based MOBIIR (ABMOBIIR) of a tissue and a tissue mimicking phantom fr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=issn23813652::229e01603ebcc312be53cf2f7fc31611
https://igi.indrastra.com/items/show/208853

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Assessment of ultrasound modulation of near infrared light on the quantification of scattering coefficient

Autor: Singh, Suheshkumar M, Yalavarthy, Phaneendra K, Vasu, RM, Rajan, K

Publikováno v: IndraStra Global.

Purpose: To assess the effect of ultrasound modulation of near infrared (NIR) light on the quantification of scattering coefficient in tissue-mimicking biological phantoms.Methods: A unique method to estimate the phase of the modulated NIR light maki

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=issn23813652::020c980411091a9c672dbd5a0b6c315d
https://igi.indrastra.com/items/show/208124

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Self-regularized pseudo time-marching schemes for structural system identification with static measurements

Autor: Banerjee, B, Roy, D, Vasu, RM

Publikováno v: IndraStra Global.

We explore the application of pseudo time marching schemes, involving either deterministic integration or stochastic filtering, to solve the inverse problem of parameter identification of large dimensional structural systems from partial and noisy me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::7211b60ffb15eb98c49421fe416abf6d
https://igi.indrastra.com/items/show/207872

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Single-resolution and multiresolution extended-Kalman-filter-based reconstruction approaches to optical refraction tomography

Autor: Naik, Naren, Vasu, RM, Ananthasayanam, MR

Publikováno v: IndraStra Global.

The problem of reconstruction of a refractive-index distribution (RID) in optical refraction tomography (ORT) with optical path-length difference (OPD) data is solved using two adaptive-estimation-based extended-Kalman-filter (EKF) approaches. First,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::ae0dae80e7b35d4316fa21bb677d597f
https://igi.indrastra.com/items/show/207711

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A novel two sources ultrasound modulated optical tomographic system for screening breast cancer through elasticity characterization

Autor: Singh, Suheshkumar M, Rajanna, K, Vasu, RM, Sijeesh, K

Publikováno v: IndraStra Global.

The study of non-invasive characterization of elastic properties of soft biological tissues has been a focus of active researches since recent years. Light is highly scattered by biological tissues and hence, sophisticated reconstruction algorithms a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=issn23813652::19912ab2b87b8ad17e74e3b890f20bec
http://eprints.iisc.ac.in/31501/1/sources.pdf

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Mechanical property assessment of tissue-mimicking phantoms using remote palpation and optical read-out for amplitude of vibration and refractive index modulation

Autor: Devi, CU, Chandran, RSB, Vasu, RM, Sood, AK

Publikováno v: IndraStra Global.

A coherent light beam is used to interrogate the focal region within a tissue-mimicking phantom insonified by an ultrasound transducer. The ultrasound-tagged photons exiting from the object carry with them information on local optical path length flu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=issn23813652::e40ca0df25fbb212e3f5591b2cf86551
http://eprints.iisc.ac.in/11697/1/Mechanical_property.pdf

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Noise-tolerance analysis for detection and reconstruction of absorbing inhomogeneities with diffuse optical tomography using single- and phase-correlated dual-source schemes

Autor: Kanmani, B, Vasu, RM

Publikováno v: IndraStra Global.

An iterative reconstruction procedure is used to invert intensity data from both single- and phase-correlated dual-source illuminations for absorption inhomogeneities. The Jacobian for the dual source is constructed by an algebraic addition of the Ja

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=issn23813652::be1061610ad84d0988454b77b315065d
http://eprints.iisc.ac.in/14082/1/noise.pdf

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Elastic property estimation using Ultrasound Assisted Optical Elastography through Remote Palpation - A simulation study - art. no. 61640Q

Autor: Devi, Usha C, Chandran, Bharat RS, Vasu, RM, Sood, AK

Publikováno v: IndraStra Global.

We propose an effective elastography technique in which an acoustic radiation force is used for remote palpation to generate localized tissue displacements, which are directly correlated to localized variations of tissue stiffness and are measured us

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=issn23813652::eea99e6c474037339b12400756467083
https://igi.indrastra.com/items/show/208093

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