Dr. Mini Das Profile

Dr. Mini Das

Associate Professor at Univ of Houston

SPIE Involvement:

Conference Program Committee | Author

Publications (32)

Proceedings Article | 3 April 2019

Single-exposure contrast enhanced spectral mammography

Raul Torrico, Amar Kavuri, Cale Lewis, Mini Das

Proc. SPIE. 10948, Medical Imaging 2019: Physics of Medical Imaging

KEYWORDS: Signal to noise ratio, Breast, Photon counting, Tissues, Sensors, Signal attenuation, X-rays, Iodine, Mammography, Dual energy imaging, Breast imaging

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Proceedings Article | 3 April 2019

Quantitative phase retrieval of heterogeneous samples from spectral x-ray measurements

Ivan Vazquez, Nathaniel Fredette, Mini Das

Proc. SPIE. 10948, Medical Imaging 2019: Physics of Medical Imaging

KEYWORDS: Photon counting, Polymethylmethacrylate, Tissues, Sensors, Free space, Bone, Data acquisition, Phase retrieval, Aluminum, Coded apertures

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Proceedings Article | 3 April 2019

Experimental validation of a multi-step material decomposition method for spectral CT

Nathaniel Fredette, Stefano Vespucci, Mini Das

Proc. SPIE. 10948, Medical Imaging 2019: Physics of Medical Imaging

KEYWORDS: Photon counting, X-ray computed tomography, Sensors, Signal attenuation, Calibration, X-rays, Silicon, Iodine, Computed tomography, Gadolinium

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Proceedings Article | 13 March 2019

Contribution of scatter and beam hardening to phase contrast imaging

Cale Lewis, Ivan Vazquez, Stefano Vespucci, Mini Das

Proc. SPIE. 10948, Medical Imaging 2019: Physics of Medical Imaging

KEYWORDS: Phase contrast, Polymethylmethacrylate, Sensors, Signal attenuation, X-rays, X-ray sources, Phase measurement, X-ray imaging, Compton scattering, Beam propagation method, Absorption

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Proceedings Article | 9 March 2018

Spectrally varying spatial frequency properties of a small pixel photon counting detector

Stefano Vespucci, Mini Das

Proc. SPIE. 10573, Medical Imaging 2018: Physics of Medical Imaging

KEYWORDS: Photon counting, Electronics, Spatial frequencies, Sensors, Spectroscopy, X-rays, Scanning probe microscopy, Modulation transfer functions, Signal detection, X-ray fluorescence spectroscopy

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Proceedings Article | 9 March 2018

Investigating the contributions of anatomical variations and quantum noise to image texture in digital breast tomosynthesis

William Nisbett, Amar Kavuri, Mini Das

Proc. SPIE. 10573, Medical Imaging 2018: Physics of Medical Imaging

KEYWORDS: Breast, Tumor growth modeling, Data modeling, Imaging systems, Computer simulations, Image analysis, Medical imaging, Image quality, Image filtering, Digital breast tomosynthesis

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Proceedings Article | 9 March 2018

A sensitivity analysis on parameters that affect a multi-step material decomposition for spectral CT

Nathaniel Fredette, Amar Kavuri, Mini Das

Proc. SPIE. 10573, Medical Imaging 2018: Physics of Medical Imaging

KEYWORDS: Gold, Signal to noise ratio, Data modeling, Sensors, Signal attenuation, Calcium, Iodine, Computed tomography, Electronic filtering, Filtering (signal processing)

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Proceedings Article | 9 March 2018

Examining phase contrast sensitivity to signal location and tissue thickness in breast imaging

Stefano Vespucci, Cale Lewis, Chan Soo Park, Mini Das

Proc. SPIE. 10573, Medical Imaging 2018: Physics of Medical Imaging

KEYWORDS: Breast, Phase contrast, Polymethylmethacrylate, Tissues, Sensors, X-rays, Free space, Coded apertures, X-ray imaging, Signal detection

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Proceedings Article | 7 March 2018

Assessment of DBT acquisition parameters for 2D and 3D search tasks

Howard Gifford, Mini Das

Proc. SPIE. 10577, Medical Imaging 2018: Image Perception, Observer Performance, and Technology Assessment

KEYWORDS: Breast, 3D acquisition, 3D image reconstruction, 3D modeling, Image quality, Image filtering, Reconstruction algorithms, Binary data, 3D image processing, Digital breast tomosynthesis

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Proceedings Article | 7 March 2018

Interaction of anatomic and quantum noise in DBT power spectrum

Amar Kavuri, Nathaniel Fredette, Mini Das

Proc. SPIE. 10577, Medical Imaging 2018: Image Perception, Observer Performance, and Technology Assessment

KEYWORDS: Breast, Optical filters, Tissues, Denoising, Image filtering, Mammography, Electronic filtering, Signal detection, Filtering (signal processing), Digital breast tomosynthesis

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Proceedings Article | 10 March 2017

On the impact of local image texture parameters on search and localization in digital breast imaging

William Nisbett, Amareswararao Kavuri, Nathaniel Fredette, Mini Das

Proc. SPIE. 10136, Medical Imaging 2017: Image Perception, Observer Performance, and Technology Assessment

KEYWORDS: Breast, Statistical analysis, X-ray computed tomography, Tumor growth modeling, Imaging systems, Image processing, Medical imaging, Tomography, Digital imaging, Image display, Signal detection, Digital breast tomosynthesis, Breast imaging

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Proceedings Article | 10 March 2017

Visual-search models for location-known detection tasks

H. Gifford, Z. Karbaschi, K. Banerjee, M. Das

Proc. SPIE. 10136, Medical Imaging 2017: Image Perception, Observer Performance, and Technology Assessment

KEYWORDS: Mathematical modeling, Signal to noise ratio, Eye, Visual process modeling, Image filtering, Nuclear medicine, Statistical modeling, Performance modeling, Eye models

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Proceedings Article | 9 March 2017

A multi-step method for material decomposition in spectral computed tomography

Nathaniel Fredette, Cale Lewis, Mini Das

Proc. SPIE. 10132, Medical Imaging 2017: Physics of Medical Imaging

KEYWORDS: Gold, Photon counting, Signal attenuation, Calibration, X-rays, Computer simulations, Medical imaging, Data acquisition, Computed tomography, Chemical elements, Algorithm development

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Proceedings Article | 9 March 2017

Impact of Compton scatter on material decomposition using a photon counting spectral detector

Cale Lewis, Chan-Soo Park, Nathaniel Fredette, Mini Das

Proc. SPIE. 10132, Medical Imaging 2017: Physics of Medical Imaging

KEYWORDS: Photon counting, Statistical analysis, Polymethylmethacrylate, Sensors, Signal attenuation, Databases, Error analysis, X-rays, Composites, Materials processing, Distortion, Aluminum, Photoelectric effect, Compton scattering, Cones

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Proceedings Article | 18 April 2016

Single-shot x-ray phase contrast imaging with an algorithmic approach using spectral detection

Mini Das, Chan-Soo Park, Nathaniel Fredette

Proc. SPIE. 9783, Medical Imaging 2016: Physics of Medical Imaging

KEYWORDS: Phase contrast, Tissues, Sensors, X-rays, Free space, Phase retrieval, Coded apertures, X-ray imaging, Motion measurement, Absorption

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Proceedings Article | 18 March 2015

Single-step, quantitative x-ray differential phase contrast imaging using spectral detection in a coded aperture setup

Mini Das, Zhihua Liang

Proc. SPIE. 9412, Medical Imaging 2015: Physics of Medical Imaging

KEYWORDS: Photon counting, Phase contrast, Sensors, Signal attenuation, X-rays, Coded apertures, X-ray imaging, Coded aperture imaging, X-ray detectors, Absorption

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Proceedings Article | 18 March 2015

Energy calibration of photon counting detectors using x-ray tube potential as a reference for material decomposition applications

Mini Das, Bigyan Kandel, Chan Soo Park, Zhihua Liang

Proc. SPIE. 9412, Medical Imaging 2015: Physics of Medical Imaging

KEYWORDS: Photon counting, Sensors, Calibration, Metals, Luminescence, X-rays, Silicon, Gadolinium, X-ray detectors, X-ray fluorescence spectroscopy

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Proceedings Article | 18 March 2015

Examining wide-arc digital breast tomosynthesis: optimization using a visual-search model observer

Mini Das, Zhihua Liang, Howard Gifford

Proc. SPIE. 9412, Medical Imaging 2015: Physics of Medical Imaging

KEYWORDS: Mathematical modeling, Visual process modeling, Tumor growth modeling, Visualization, Image processing, Molybdenum, Optimization (mathematics), Statistical modeling, Systems modeling, Digital breast tomosynthesis

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Proceedings Article | 17 March 2015

Towards using eye-tracking data to develop visual-search observers for x-ray breast imaging

Zhengqiang Jiang, Zhihua Liang, Mini Das, Howard Gifford

Proc. SPIE. 9416, Medical Imaging 2015: Image Perception, Observer Performance, and Technology Assessment

KEYWORDS: Breast, Visualization, Calibration, X-rays, Feature extraction, Image filtering, X-ray imaging, Eye models, Digital breast tomosynthesis, Breast imaging

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Proceedings Article | 19 March 2014

Direct spectral recovery using X-ray fluorescence measurements for material decomposition applications using photon counting spectral X-ray detectors

Tom Campbell-Ricketts, Mini Das

Proc. SPIE. 9033, Medical Imaging 2014: Physics of Medical Imaging

KEYWORDS: Photon counting, Sensors, Calibration, Electrodes, Luminescence, X-rays, Distortion, X-ray detectors, X-ray fluorescence spectroscopy, Absorption

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Proceedings Article | 21 March 2013

Towards visual-search model observers for mass detection in breast tomosynthesis

Beverly Lau, Mini Das, Howard Gifford

Proc. SPIE. 8668, Medical Imaging 2013: Physics of Medical Imaging

KEYWORDS: Breast, Statistical analysis, Visual process modeling, Visual analytics, Visualization, Tissues, 3D modeling, Spherical lenses, Systems modeling, Digital breast tomosynthesis

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Proceedings Article | 19 March 2013

Single-step phase contrast x-ray imaging using photon counting detectors

Doga Gürsoy, Mini Das

Proc. SPIE. 8668, Medical Imaging 2013: Physics of Medical Imaging

KEYWORDS: Breast, Photon counting, Phase contrast, Tissues, Sensors, Signal attenuation, X-rays, X-ray imaging, X-ray detectors, Absorption

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Proceedings Article | 9 March 2012

Investigation of statistical iterative reconstruction for dedicated breast CT

Andrey Makeev, Mini Das, Stephen Glick

Proc. SPIE. 8313, Medical Imaging 2012: Physics of Medical Imaging

KEYWORDS: Breast, Optical spheres, X-ray computed tomography, Tumor growth modeling, Detection and tracking algorithms, X-rays, Computer simulations, Computed tomography, Reconstruction algorithms, X-ray imaging

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Proceedings Article | 9 March 2012

Effect of postreconstruction filter strength on microcalcification detection at different imaging doses in digital breast tomosynthesis: human and model observer studies

Mini Das, Caitlin Connolly, Stephen Glick, Howard Gifford

Proc. SPIE. 8313, Medical Imaging 2012: Physics of Medical Imaging

KEYWORDS: Mathematical modeling, Breast, Data modeling, Visualization, Tomography, Digital imaging, Image filtering, Reconstruction algorithms, Visibility, Digital breast tomosynthesis

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Proceedings Article | 16 March 2011

Comparison of model-observer and human-observer performance for breast tomosynthesis: effect of reconstruction and acquisition parameters

Mini Das, Howard Gifford

Proc. SPIE. 7961, Medical Imaging 2011: Physics of Medical Imaging

KEYWORDS: Mathematical modeling, Gold, Breast, Visual process modeling, Visualization, Signal attenuation, Image quality, Statistical modeling, Performance modeling, Digital breast tomosynthesis

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Proceedings Article | 22 March 2010

A hypothesis testing approach for microwave breast imaging in conjunction with CT

Jie Xu, Patrick Kelly, Paul Siqueira, Mini Das

Proc. SPIE. 7622, Medical Imaging 2010: Physics of Medical Imaging

KEYWORDS: Breast, Cancer, Tissues, Sensors, X-rays, Dielectrics, Diagnostics, Computed tomography, Microwave radiation, Breast imaging

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Proceedings Article | 14 March 2009

Dose reduction in digital breast tomosynthesis using a penalized maximum likelihood reconstruction

Mini Das, Howard Gifford, Michael O'Connor, Stephen Glick

Proc. SPIE. 7258, Medical Imaging 2009: Physics of Medical Imaging

KEYWORDS: Signal to noise ratio, Breast, Optical spheres, Tumor growth modeling, Visualization, Signal attenuation, Image filtering, Reconstruction algorithms, Visibility, Digital breast tomosynthesis

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SPIE Journal Paper | 1 November 2008

Image reconstruction method for a two-layer tissue structure accounts for chest-wall effects in breast imaging

Chen Xu, Mini Das, Yasaman Ardeshirpour, Quing Zhu

JBO Vol. 13 Issue 06

KEYWORDS: Optical properties, Absorption, Tissue optics, Image restoration, Breast, Reconstruction algorithms, Ultrasonography, Silicon, Tissues, Chest

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Proceedings Article | 3 April 2008

Evaluation of a variable dose acquisition methodology for breast tomosynthesis

Mini Das, Howard Gifford, Michael O'Connor, Stephen Glick

Proc. SPIE. 6913, Medical Imaging 2008: Physics of Medical Imaging

KEYWORDS: Mathematical modeling, Breast, Image compression, 3D acquisition, X-ray computed tomography, Sensors, X-rays, 3D modeling, Mammography, Systems modeling

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Proceedings Article | 18 March 2008

Using mastectomy specimens to develop breast models for breast tomosynthesis and CT breast imaging

J. Michael O'Connor, Mini Das, Clay Didier, Mufeed Mah'D, Stephen Glick

Proc. SPIE. 6913, Medical Imaging 2008: Physics of Medical Imaging

KEYWORDS: Breast, X-ray computed tomography, Tumor growth modeling, Data modeling, Tissues, Sensors, X-rays, 3D modeling, Systems modeling, Breast imaging

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Proceedings Article | 6 March 2008

Optimizing breast-tomosynthesis acquisition parameters with scanning model observers

H. Gifford, C. Didier, Mini Das, S. Glick

Proc. SPIE. 6917, Medical Imaging 2008: Image Perception, Observer Performance, and Technology Assessment

KEYWORDS: Breast, 3D acquisition, Tumor growth modeling, Tumors, Imaging systems, Sensors, 3D modeling, Mammography, Reconstruction algorithms, 3D image processing

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