Dr. Renu John Profile

Dr. Renu John

Asst. Professor, Biomedical Engineering at Indian Institute of Technology Hyderabad

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Publications (12)

PROCEEDINGS ARTICLE | May 24, 2018

Quantitative phase imaging of low-cost digital in-line holography in comparison with off-axis digital holographic microscopy

Proc. SPIE. 10677, Unconventional Optical Imaging

KEYWORDS: Holograms, Holography, Light emitting diodes, 3D image reconstruction, Digital holography, Cameras, Microscopy, Phase retrieval, Phase imaging, Reconstruction algorithms

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SPIE Journal Paper | October 5, 2017

Label-free nanoscale characterization of red blood cell structure and dynamics using single-shot transport of intensity equation

Poola, Praveen Kumar , John, Renu

JBO Vol. 22 Issue 10

KEYWORDS: Microscopy, Blood, Absorption, 3D image reconstruction, 3D image processing, Microscopes, Refractive index, Phase measurement, Video, Phase retrieval

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SPIE Journal Paper | September 23, 2017

High resolution near on-axis digital holography using constrained optimization approach with faster convergence

Pandiyan, Vimal Prabhu , Khare, Kedar , John, Renu

OE Vol. 56 Issue 09

KEYWORDS: Holograms, 3D image reconstruction, Digital holography, Image restoration, Image filtering, Image resolution, Holography, Yeast, Molybdenum, Fourier transforms

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SPIE Journal Paper | October 21, 2016

Quantitative phase imaging of live cells with near on-axis digital holographic microscopy using constrained optimization approach

Pandiyan, Vimal Prabhu , Khare, Kedar , John, Renu

JBO Vol. 21 Issue 10

KEYWORDS: Holograms, Digital holography, Image restoration, Image filtering, 3D image reconstruction, Holography, Yeast, Image resolution, Microscopy, Fourier transforms

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PROCEEDINGS ARTICLE | March 9, 2016

High resolution quantitative phase imaging of live cells with constrained optimization approach

Proc. SPIE. 9718, Quantitative Phase Imaging II

KEYWORDS: Optical filters, Holograms, Holography, 3D image reconstruction, Digital holography, Microscopy, Image restoration, Image resolution, Phase imaging, Image filtering, Optical resolution

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PROCEEDINGS ARTICLE | March 9, 2016

Quantitative label-free sperm imaging by means of transport of intensity

Proc. SPIE. 9718, Quantitative Phase Imaging II

KEYWORDS: Microscopes, Refractive index, Real time imaging, Phase contrast, Digital holography, Visualization, Microscopy, Interferometry, Phase retrieval, Head, Phase imaging, Laser interferometry, Digital image correlation, 3D image processing

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PROCEEDINGS ARTICLE | December 9, 2015

Quantitative phase imaging of cell division in yeast cells and E.coli using digital holographic microscopy

Proc. SPIE. 9792, Biophotonics Japan 2015

KEYWORDS: Microscopes, Holograms, Holography, 3D image reconstruction, Digital holography, Imaging systems, Microscopy, Digital imaging, Phase imaging, Yeast, Reconstruction algorithms, 3D image processing

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PROCEEDINGS ARTICLE | December 9, 2015

Non-interferometric quantitative phase imaging of yeast cells

Proc. SPIE. 9792, Biophotonics Japan 2015

KEYWORDS: Microscopes, Refractive index, Light sources, Holography, Real time imaging, Biomedical optics, Digital holography, Pathology, Microscopy, Imaging spectroscopy, Biology, Phase imaging, Yeast, Live cell imaging, 3D image processing

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PROCEEDINGS ARTICLE | February 16, 2011

Low power real time signal processing engine for optical coherence tomography systems using multi-core digital signal processor

Proc. SPIE. 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV

KEYWORDS: Coherence imaging, Digital signal processing, Optical signal processing, Coherence (optics), Surgery, Imaging systems, Optical coherence tomography, Image processing, Image restoration, Signal processing

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PROCEEDINGS ARTICLE | February 16, 2011

Magnetomotive optical coherence microscopy for cell dynamics and biomechanics

Proc. SPIE. 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV

KEYWORDS: Diffraction, Coherence imaging, Modulation, Nanoparticles, Microscopy, Luminescence, Light scattering, Magnetism, Fourier transforms, Transducers

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PROCEEDINGS ARTICLE | January 28, 2009

A static multiplex Fabry-Perot spectrometer

Proc. SPIE. 7249, Sensors, Cameras, and Systems for Industrial/Scientific Applications X

KEYWORDS: Optical filters, Fabry–Perot interferometers, Fringe analysis, Sensors, Spectroscopy, Lamps, Spectral resolution, Reconstruction algorithms, Neon, Expectation maximization algorithms

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PROCEEDINGS ARTICLE | November 6, 2007

Single disperser design for compressive, single-snapshot spectral imaging

Proc. SPIE. 6714, Adaptive Coded Aperture Imaging and Non-Imaging Sensors

KEYWORDS: Optical components, Imaging systems, Sensors, Spectroscopy, Imaging spectroscopy, Charge-coupled devices, Reconstruction algorithms, Coded apertures, RGB color model, Compressed sensing

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Showing 5 of 12 publications

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