Kriti Sen Sharma, Ph.D.

Ph.D. in Medical Imaging. Lead Engineer Cardiac CT at GE Healthcare. Writer.

Lead-Engineer (computed tomography cardiac applications) at
GE Healthcare.

Writes about unconventional life and career choices at
GoHatke.com

MyPicture

I work on cardiac applications for GE Healthcare's ultra-fast premium CT scanner called Revolution

I also write about unconventional choices for life and career at GoHatke.com ('hatke' is Indian for unconventional)

  • http://www.linkedin.com/in/kritisen
  • https://twitter.com/kritisen
  • https://www.facebook.com/kritisen
  • Programming: C / C++, MSDOS and Shell Scripting, LaTeX, Code versioning systems (Mercurial, Git, SVN), Object Oriented Programming, Multithreading
  • Software: MATLAB; MS Visual Studio; ImageJ; Microsoft Office; Simulink; CMake; Amira; GIMP and Photoshop
  • Languages: Fluent in English, Hindi, Bengali
  • Image and Video Processing: ITK - Segmentation & Registration Toolkit; VTK - Visualization Toolkit; OpenCV - Open-source Computer Vision library; DirectShow media-streaming API
  • Computer and OS: Proficient in Mac OS X, Windows XP, Vista, 7, Unix / Linux
  • Miscellaneous: Web-designing (HTML, PHP, CSS, Wordpress); Texas Instruments DSP (digital signal processing hardware), Experienced in running biological experiments

C / C++ and MATLAB

ITK, VTK, OpenCV

HTML, PHP, CSS, WordPress

May 2013 - Current

GE Healthcare (Waukesha, WI)

Lead Engineer

Working on computed tomography cardiac applications for Revolution platform — GE’s latest ultra-fast premium CT scanner.

Working on resolution characterization for Revolution platform

Jan 2012 - Current

GoHatke.com

Founder and Writer

GoHatke.com is a blog dedicated to unconventional life and career choices (‘hatke’ is an Indian colloquialism for unconventional)

May 2012 - Aug 2012

GE Healthcare (Waukesha, WI)

Early identification intern

Mentor(s): Debashish Pal

Selected as part of GE Healthcare’s world class Early Identification Program (EID) – an internship program that offers a combination of quality assignments with excellent leadership opportunities

Undertook a research project to improve GE’s Metal Artifact Reduction product

Aug - Dec 2010 and May - Aug 2011

Xradia Inc. (Pleasanton, CA)

Intern

Mentor(s): Michael Feser, Tom Case

Developed techniques for accurate measurement of resolution in X-ray micro-CT systems

Developed library of image processing algorithms (filtering, registration etc.) and GUI for use with Xradia’s data acquisition and instrument control software

Jun 2005 - Jul 2007

Interra Systems (Kolkata, India)

Member of Technical Staff

Mentor(s): Partha Pratim Das, Jibanananda Roy

Worked on ‘Lip Tracker‘ – real-time non-invasive content analysis of audio-video streams to detect lip synchronization error.

‘Lip Tracker’ product won Broadcast Engineering Pick Hit (NAB 2007) and TV Technology STAR Award (NAB 2006)

Awarded Interra Colt Award for being the most promising fresher, 2006

Jun. 2009 - May 2013

Ph.D., Electrical and Computer Engineering

Virginia Polytechnic Institute and State University

Ph.D. thesis focusing on improving image quality and resolution in micro- and nano- computed tomography (micro-CT and nano-CT) through iterative image reconstruction and compressed sensing techniques (Advisor: Dr. Ge Wang)
Minor option in Biomedical Engineering and Sciences

Aug. 2007 - May 2009

M.S., Electrical and Computer Engineering

Virginia Polytechnic Institute and State University

As part of research project, developed experimental protocol, imaging methods and image processing algorithms for in vitro quantification of viral infectivity (Advisor: Dr. Amy E. Bell)

Key Courses: Stochastic signals and systems, Advanced DSP & filter design, Robust estimation and filtering, Pattern recognition, Theory and design of computer vision systems, Advanced image analysis, Numerical analysis, Intermediate differential equations, Biomedical engineering and human disease, Mammalian physiology

Jul. 2001 - May 2005

B.Tech., Electronics & Electrical Communication Engg.

Indian Institute of Technology Kharagpur

Senior project on DSP implementation of a heart valve disorder detection system at Digital Signal Processing Lab (Advisor: Dr. Goutam Saha)

Citations and h-Index at Google Scholar

Journals / Refereed Conferences

Published

  1. Debashish Pal, K. Sen Sharma, and Jiang Hsieh, “Metal Artifact Correction Algorithm for CT”, IEEE Nuclear Science Symposium – NSS/MIC, 2013
  2. J. Broce, James D. Schiffbauer, K. Sen Sharma, G. Wang, and S. Xiao “Possible animal embryos from the lower cambrian (Stage 3) Shuijingtuo formation, Hubei province, South China”, Journal of Paleontology, 2014
  3. K. Sen Sharma, C. Holzner, D. M. Vasilescu, X. Jin, S. Narayanan, M. Agah, E. A. Hoffman, H. Yu, G. Wang, “Scout­ view assisted interior micro­CT “, Physics in Medicine and Biology, 2013
  4. A. A. Gurjarpadhye, B. M. Whited, G. Niu, A. Sampson, K. Sen Sharma, W. C. Vogt, G. Wang, Y. Xu, S. Soker, N. Rylander, C. Rylander, “Imaging and characterization of bioengineered blood vessels within a bioreactor using free­space and catheter­based OCT“, Lasers in Surgery and Medicine, 2013
  5. K. Sen Sharma, X. Jin, C. Holzner, S. Narayanan, B. Liu, D. Wang, M. Agah, L. Wang, H. Yu, G. Wang, “Experimental studies on few­ view reconstruction for high ­resolution micro­-CT “, Journal of X­ray Science and Technology, 2013
  6. B. Laha, K. Sen Sharma, J. D. Schiffbauer, D. Bowman, “Effects of immersion on visual analysis of volume data“, IEEE Transactions on Visualization and Computer Graphics (Proceedings of Virtual Reality 2012), 2012
  7. J.D. Schiffbauer, S. Xiao, K. Sen Sharma, and G. Wang, “The origin of intracellular structures in Ediacaran metazoan embryos“, Geology, 2012
  8. S. Mishra, K. Sen Sharma, S. J. Lee, E. A. Fox, G. Wang, “SLATE: Virtualizing multiscale CT training“, Journal of X-ray Science and Technology, 2012
  9. K. Sen Sharma, S. Seshadri, M. Feser, G. Wang, “Accurate resolution measurement for X-Ray micro-CT systems“, AIP Conf. Proc., 2011
  10. K. Sen Sharma, D. Qiao, A. E. Bell, S. K. Samal, S. Elankumaran, “Efficient fluorescence-based imaging methods for quantifying infectivity of Newcastle Disease Virus“, Journal of Virological Methods, 2010
  11. S. Ari, K. Sen Sharma, G. Saha, “DSP implementation of a heart valve disorder detection system from a phonocardiogram signal“, J. Med. Eng. & Tech., 2008

Submitted

  1. K. Sen Sharma, Hao Gong, Omid Ghasemalizadeh, Hengyong Yu, Ge Wang, Guohua Cao, “Interior micro-CT with an offset detector “, under review

Conferences

Oral

  1. Novel biomedical and biological applications using lab-based multi-scale CT system, Annual Meeting of the Biomedical Engineering Society, Hartford, CT, Oct. 2011
  2. Micro-CT for osteon-like scaffolds, 11th Annual Conference of the North Carolina Tissue Engineering and Regenerative Medicine Society, Winston-Salem, NC, Nov. 2009


Poster

  1. The origin of intracellular structures in Ediacaran metazoan embryos, 2011 GSA Annual Meeting, Minneapolis, MN, (October 2011)
  2. Micro-CT scanner training in a 3D virtual world: Second Life aided training and education (SLATE), BMES Annual Meeting 2010, Austin, TX, October 2010
  3. Interior reconstruction for multi-scale CT facility, 1st International Conference on Image Formation in X-Ray Computed Tomography, Salt Lake City, UT, June 2010
GE’s latest ultra-fast premium CT scanner

GE’s latest ultra-fast premium CT scanner

Revolution CT by GE Healthcare

Metal artifact reduction (MAR) at GE Healthcare

Metal artifact reduction (MAR) at GE Healthcare

View the GE video about MAR here

Novel biomedical applications using multi-scale CT system

Novel biomedical applications using multi-scale CT system

Watch my talk here

Multi-scale CT facility management talk

Multi-scale CT facility management talk

Listen to the talk

May 2nd, 2013

Thesis flyer

What is CT? CT stands for computed tomography. A clinical CT scanner is shown in Fig. A. Figure B shows the working principle, by which x-ray beams pass through the body to be detected as projections. A set of projections across various angles forms a tomography (or a sinogram). Figure C shows a very simplistic… read more

Nov 18th, 2012

Optimizing bin width for K-Edge Imaging [He et al., 2012]

[Citation:] He, Peng, Biao Wei, Wenxiang Cong, and Ge Wang. “Optimization of K-edge Imaging with Spectral CT.” Medical Physics 39, no. 11 (2012): 6572. http://link.aip.org/link/MPHYA6/v39/i11/p6572/s1&Agg=doi Peng He was a visiting scholar at my lab. While I was familiar with his work on the MARS-CT scanner, I did not know the details of the work he… read more

Nov 15th, 2012

Improved Total Variation [Ritschi et al. 2011]

[CITATION:] Ritschl, Ludwig, Frank Bergner, Christof Fleischmann, and Marc Kachelriess. “Improved Total Variation-based CT Image Reconstruction Applied to Clinical Data.” Physics in Medicine and Biology 56, no. 6 (March 21, 2011): 1545–61. http://www.ncbi.nlm.nih.gov/pubmed/21325707. This paper had been on my ‘Must-Read’ list for several months. I finally went through it yesterday, and realized that the method… read more