Dr. Hari M. Varma Profile

Dr. Hari M. Varma

Assistant Professor at Indian Institute Of Technology Bombay

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Author

Publications (9)

Proceedings Article | 9 August 2023 Paper

Fiber-conduit-based laser speckle contrast imaging device for point of care diagnostics

Ria Paul, Susweta Das, Soumyajit Sarkar, Mohammad Zaffar, Hari Varma

Proceedings Volume 12630, 126301A (2023) https://doi.org/10.1117/12.2686890

KEYWORDS: Point-of-care devices, Laser speckle contrast imaging, Microfluidics, Imaging devices, Cameras, Diagnostics, Tissues, Endoscopes

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Proceedings Article | 9 August 2023 Paper

A stochastic differential equation-based Monte Carlo simulation to model light propagation in dynamic turbid media

Soumyajit Sarkar, Murali K., Hari Varma

Proceedings Volume 12628, 126282N (2023) https://doi.org/10.1117/12.2686881

KEYWORDS: Monte Carlo methods, Turbidity, Simulations, Blood circulation, Stochastic processes, Photons, Autocorrelation, Absorption, Optical simulations, Data modeling

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Proceedings Article | 9 August 2023 Paper

Development of a tunable dynamical tissue phantom for laser speckle imaging of blood flow

Soumyajit Sarkar, Murali K., Hari Varma

Proceedings Volume 12628, 126281J (2023) https://doi.org/10.1117/12.2686496

KEYWORDS: Blood circulation, Tissues, Actuators, Autocorrelation, Laser speckle imaging, Speckle, Stochastic processes, Signal generators, Laser speckle contrast imaging, Differential equations

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Proceedings Article | 9 August 2023 Paper

A microfluidic-based cerebral perfusion phantom for laser speckle imaging in small animals

Susweta Das, Ria Paul, Soumyajit Sarkar, Makrand Rakshe, Prasanna Gandhi, Hari Varma

Proceedings Volume 12628, 126281B (2023) https://doi.org/10.1117/12.2670972

KEYWORDS: Animals, Microfluidics, Laser speckle imaging, Laser speckle contrast imaging, Speckle, Fractal analysis, Fabrication, Brain, Laser systems engineering, Imaging systems

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Proceedings Article | 9 August 2023 Paper

A deep learning approach to enhance the temporal resolution of laser speckle imaging system for blood flow measurement

Sivakumar Panneer Selvam, Murali K., Soumyajit Sarkar, Sibi Raj Pillai, Hari Varma

Proceedings Volume 12628, 126282O (2023) https://doi.org/10.1117/12.2686893

KEYWORDS: Speckle, Temporal resolution, Imaging systems, Deep learning, Blood circulation, Error analysis, Education and training, Resolution enhancement technologies, Laser speckle imaging, Data acquisition

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Proceedings Article | 9 August 2023 Paper

Laser speckle correlation microscopy system to image microvascular perfusion

Soumyajit Sarkar, Mohammad Zaffar, Hari Varma

Proceedings Volume 12628, 1262827 (2023) https://doi.org/10.1117/12.2670792

KEYWORDS: Speckle, Autocorrelation, Microscopy, Cameras, Microfluidics, Laser speckle contrast imaging, Imaging systems, Statistical analysis, Perfusion imaging, Neurological disorders

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Proceedings Article | 7 March 2023 Presentation + Paper

Functional imaging of olfactory bulb and somatosensory cortex in mice using small-animal blood flow imaging platform

Ria Paul, Soumyajit Sarkar, Shruti D. Marathe, Murali K., Susweta Das, Nixon Abraham, Hari Varma

Proceedings Volume 12378, 123780B (2023) https://doi.org/10.1117/12.2668690

KEYWORDS: Blood circulation, Laser speckle contrast imaging, Biological imaging, Animals, Somatosensory cortex, Brain, Tissues, Near infrared spectroscopy, Functional imaging, Tomography

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Proceedings Article | 9 December 2021 Paper

A simple algorithm for diffuse optical tomography (DOT) without matrix inversion

Ria Paul, Murali K., Sumana Chetia, Hari Varma

Proceedings Volume 11920, 119201I (2021) https://doi.org/10.1117/12.2615385

KEYWORDS: Sensors, Absorption, Diffuse optical tomography, Tissue optics, Cameras, Laser sources, Diffusion, Tissues, Reflection, Oxygen

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Proceedings Article | 9 December 2021 Paper

Exploring different source configurations for laser speckle-based blood flow measurement system

Murali K., Hari Varma

Proceedings Volume 11920, 119201K (2021) https://doi.org/10.1117/12.2615389

KEYWORDS: Blood circulation, Speckle, Laser speckle contrast imaging, Sensors, Photons, Skull, Signal to noise ratio, Diffusion, In vivo imaging, Cameras

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Showing 5 of 9 publications

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