* * * * *

CURRICULUM VITAE

APARNA JOHN

**** **** ****., ***. # ****

San Antonio, TX 78249.

ac7ulk@r.postjobfree.com

210-***-****.

* Authorized to work in the US

EDUCATIONAL QUALIFICATIONS

• Ph. D. Electrical Engineering, Department of Electrical and Computer Engineering, University of Texas at San Antonio, San Antonio, Texas, United States (GPA – 3.95 with two A+’s for a total of 6 credits, seven A’s for a total of 17 credits, three A-‘s for a total of 9 credits, and all A’s for all the thirty credits of Doctoral Research and Doctoral Dissertation).

• M. Tech Electronics and Communication (Specialization: Optoelectronics & Optical Communication), Department of Optoelectronics, University of Kerala, India.

• B. Tech Applied Electronics & Instrumentation, University of Calicut, India. DISSERTATION

2-D Quaternion Discrete Fourier Transform In Color Image Enhancement. Thesis Advisor: Professor Artyom M. Grigoryan.

PUBLISHED ARTICLES IN JOURNALS

• A. M. Grigoryan, A. John, S. S. Agaian,“Alpha-Rooting Color Image Enhancement Method with Spatial Transformation on Two-side 2D-Quaternion Discrete Fourier Transform and on 2D- Discrete Fourier Transform”, International Journal of Applied Control, Electrical and Electronics Engineering (IJACEEE) (2018), arxiv:1807.07960.

• A. M. Grigoryan, A. John, S. S. Agaian, “A Novel Color Image Enhancement Method by the Transformation of Color Images to 2-D Grayscale Images”, International Journal of Signal Processing and Analysis (2017), arxiv:1807.07962.

• A. M. Grigoryan, A. John, S. S. Agaian,“Modified Alpha-Rooting Color Image Enhancement Method on Two-side 2D-Quaternion Discrete Fourier Transform and on 2D-Discrete Fourier Transform”, Applied Mathematics and Sciences: An International Journal (MathSJ ), Vol. 4, No. 1/2 (2017), arxiv:1707.04781.

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PUBLISHED ARTICLES IN PROCEEDINGS

A. M. Grigoryan, A. John, S. S. Agaian, "A novel image enhancement method of 3-D medical images by transforming the 3-D images to 2-D grayscale images," Proc. SPIE 10668, Mobile Multimedia/Image Processing, Security, and Applications 2018, 106680Q (14 May 2018).

A. M. Grigoryan, A. John, S. S. Agaian,“Enhancement of Underwater Color Images by Two-side 2-D Quaternion Discrete Fourier Transform”, in the Proceedings of IS&T International Symposium on Electronic Imaging (EI 2018) at the conference Image Processing: Algorithms and Systems Conference, Burlingame, p6, California (2018).

• A. M. Grigoryan, A. John, S. S. Agaian, "Color image enhancement of medical images using alpha-rooting and zonal alpha-rooting methods on 2D QDFT," Proc. SPIE 10136, Medical Imaging 2017: Image Perception, Observer Performance, and Technology Assessment, 1013618 (10 March 2017).

• A. M. Grigoryan, A. John and S. S. Agaian, “Zonal-alpha-rooting color image enhancement by the two-side 2D quaternion discrete Fourier transform", Proceedings of IS&T International Symposium, Electronic Imaging: Algorithms and Systems XIV, California (2016).

A. John, S.K. Satheesh, V.P.M. Pillai, "Determination of aerosol extinction coefficient profiles from LIDAR data using the optical depth solution method," Proc. SPIE 6408, Remote Sensing of the Atmosphere and Clouds, 64080Z (8 December 2006); DOI: 10.1117/12.697518. ARTICLES SUBMITTED

A. John, Toshikazu Ikuta, Janina D. Ferbinteanu, Majnu John, “Nonparametrically estimating dynamic bivariate correlation using visibility graph algorithm”, arxiv:1710.07679 (under revision).

A. M. Grigoryan, A. John, S. S. Agaian, "Quaternion Alpha-Rooting Image Enhancement of Grayscale Images," SPIE Defense and Commercial Sensing Conferences and Exhibition April 14-18, 2019, Baltimore Convention Center, Baltimore, Maryland. (abstract submitted) COMPLETED PROJECTS

• Doctoral level

Color Image Enhancement Methods in Quaternion Space. Under the supervision of Artyom M. Grigoryan, Ph.D., Professor, Department of Electrical and Computer Engineering, University of Texas at San Antonio, USA.

(webpage)

In addition to the two spatial co-ordinates used to represent a 2-D image, color image need extra color co-ordinates to give the color information of the images. Every color image data consists of either three or four channels of 2-D images, each channel representing the 2-D image of one of the primary colors. For example, in RGB color model the primary color used are red, green and blue colors and in CMYK color model, the primary colors used are cyan, magenta, yellow and black. Every color in the image can be obtained by the superposition of these corresponding primary colors. Image processing of color images, therefore 3 P a g e

involve processing of these three or four channels of 2-D images. Until recently, the color image was processed by splitting each channel separately and applying the given algorithm onto each channel. The final result of the algorithm is the image obtained by composing these individually enhanced channels. In such cases the color, which is the superposition of all color components, could not be represented as a single entity. The color integrity of the image is compromised in such approaches. Recently, Dr. Ell and Dr. Sanguine proposed representing color image as quaternion numbers, which will allow us to process all the channels simultaneously. Quaternion numbers are four-dimensional hyper-complex numbers. We developed several enhancement algorithms in the quaternion space that will enable us to implement the image enhancement of color image without compromising the color value of the original image-object. The development of fast algorithm for the four-dimensional quaternion Fourier transform made possible the implementation of the enhancement algorithms in the frequency domain also.

• Graduate level

Major Project: Optical Depth Solution of LIDAR equations. Under the supervision of V. P. Mahadevan Pillai, Ph.D., Professor, Department of Optoelectronics, University of Kerala, India (webpage) and S.K. Satheesh, Ph.D., Professor and Chairman Divecha Centre for Climate Change, Indian Institute of Science, India. (webpage)

The presence of aerosols in the atmosphere contribute in a large extent to problems such as global warming, extreme climate changes, and other weather conditions. In our project, we studied the effects of aerosols in the atmosphere to climate changes, by collecting the LIDAR data in the nights, from the center’s campus location. The LIDAR data obtained is the back-scattering light signals after striking the aerosols and other molecules present in the atmosphere. Minor Project: Data Hiding in Images.

Under the supervision of Shehan P.R., M. Tech., Guest Lecturer, Department of Optoelectronics, University of Kerala, India and Senior Project Leader, Tata Elxsi, India.

Images can be used to hide secret information. In our project we developed two methods of coding and decoding of secret information to the images without altering the quality of the images.

• Undergraduate level

Major Projects: Implementation of Relay Controls using Programmable Logic Controller

(PLC) and Programmable Controller (PC).

Under the supervision of management personnel in the Department of Instrumentation, Hindustan Organic Chemicals Limited (HOCL), Kerala, India.

(webpage)

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Our project was to transfer the implementation of the existing relay-based controls of a compressor in the control room of the Instrumentation Department in HOCL to the more user-friendly Programmable Logic Controller and Programmable Controller. The compressor used in the one of the chemical plants in HOCL had to change the response based on the changes in the various parameters like pressure, temperature, oil levels etc. Therefore, there was a feedback from each of these sensors to the compressor to the control room and the controls were originally implemented using relays. We studied all the relay control of the compressor and implemented the same control features using PLC and PC, which has less of a hardware features.

WORK EXPERIENCE

• Lecturer 1, University of Texas at San Antonio

Courses Taught:

EGR 2213 Statics and Dynamics (Summer & Fall 2018).

- Topics covered: Force, moment, equilibrium, centroids and moments of inertia, kinematics, and kinetics of particles.

- Lecturing a class of 57 students with one grader assisting me now in Fall 2018.

- Instructor Evaluation 4.5/5 and Course Evaluation 4.8/5 (Summer 2018).

- Lectured a class of 17 students with one grader assisting me in Summer 2018. EE 3323 Electronic Devices (Summer 2018).

- Topics covered: Introduction to semiconductor materials, fundamentals of quantum mechanics and carrier phenomena, operating principles of P-N junction diodes, metal-semiconductor contacts (Schottky diodes), bipolar- junction transistors, field-effect transistors, photodetectors and optoelectronic devices.

- Instructor Evaluation 3.9/5 and Course Evaluation 3.9/5 (Summer 2018).

- Lectured a class of 19 students with one grader assisting me in Summer 2018.

• Graduate Teaching Assistant in University of Texas at San Antonio Courses Assisted:

EE 4113 Electrical and Computer Engineering Lab II, (Spring & Fall 2016, 2017). Topics covered: Familiarity with circuit-simulation software (PSpice) and printed circuit board design, construction, and test. Circuit design, simulation, prototyping, and testing of a baseband filtering and amplification circuit and RF mixing, filtering, and amplification circuit.

EGR 3323 Applied Engineering Analysis II (Spring, Summer, Fall 2016). Topics covered: Application of mathematical principles to the analysis of engineering problems using vector differential and integral calculus, partial differential equations, and Fourier series; complex variables; discrete mathematics; and use of software tools.

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EE 3424 Math in Signals and Systems, (Summer 2016, 2017). Topics covered: Basic concepts, mathematical representation of signals and systems, properties of basic functions, properties of signals and classification of systems, convolution integral, impulse response, frequency response function for linear time invariant systems, differential-equation models, response to real sinusoidal signals, ideal filters, periodic functions and Fourier series, continuous- time Fourier transform, energy and power spectral density functions, Laplace transforms in linear system analysis, differential equations with constant coefficients, transfer functions and state-variable models.

• Lecturer at Department of Optoelectronics, University of Kerala, Kerala, India.

(from 2008 to 2011)

o Courses taught: Fiber Optics & Technology, Digital Signal Processing, Optical Communication Systems.

o Laboratory/Experiments Supervised: Optoelectronics & Semiconductor Devices Experiments, Optical Communication Experiments, Laser based experiments, Digital Image Processing, Digital Image Processing etc. Also graded various mini- projects and seminars presented by the graduate students. AWARDS AND SCHOLARSHIPS

Electrical and Computer Engineering Department Scholarship (2014), University of Texas at San Antonio, Texas, United States.

3-D Image Analysis and Classification System Research Competitive Scholarship (2015).

80/20 Foundation - Open Cloud Endowment Fellowship (2017).

Graduate Aptitude Test in Engineering (GATE) in India for M.Tech. degree (Percentile score 90.24%).

SEMINARS PRESENTED

• Doctoral Level

o Presented the research article Zonal-alpha-rooting color image enhancement by the two-side 2D quaternion discrete Fourier transform, at the conference Electronic Imaging: Algorithms and Systems XIV, IS&T International Symposium 2016, San Francisco, California.

o Presented the research article Color image enhancement of medical images using alpha-rooting and zonal alpha-rooting methods on 2D-QDFT, SPIE Medical Imaging Symposium scheduled on 13 February 2017 at Orlando, Florida United States. o Presented the research article Enhancement of Underwater Color Images by Two- side 2-D Quaternion Discrete Fourier Transform, IS&T International Symposium on Electronic Imaging (EI 2018) at the conference Image Processing: Algorithms and Systems Conference, Burlingame, California United States. 6 P a g e

o Presented the research topics Fast Convolution with Quaternion Transform and Quaternion Kuwahara Filtering, System Identification by Adaptive Algorithm and Photo-acoustic Tomography, at four different times in class-room settings, at the Department of Electrical and Computer Engineering, University of Texas at San Antonio, USA.

• Graduate Level

o Presented the topic Determination of aerosol extinction coefficient profiles from LIDAR data using the optical depth solution method, in the conference Remote Sensing of the Atmosphere and Clouds, 5th Asia Pacific Remote Sensing Symposium, November 28, 2006.

o Presented a lecture on Silicon Photonics at Department of Optoelectronics, University of Kerala, India.

• Undergraduate Level

o Presented a short seminar on Kirlian photography at Department of Applied Electronics and Instrumentation, University of Kerala, India. HONORS AND MEMBERSHIPS

Student Member of IEEE and Student Member of SPIE.

Member of Honor Society Eta Kappa Nu (HKN), UTSA Chapter. LABORATORY EXPERIENCES

Familiar with different experiments on:

Electronics labs – electronic circuit design labs, micro-processor labs, digital electronics lab;

Instrumentation labs and process control labs;

Opto-electronics and optical communication labs,

LIDAR labs, Optics labs and other laser based experiments’ labs.

I also had the privilege of assisting my Professors in setting up labs. SOFTWARE SKILLS

• MATLAB

Substantial experience with MATLAB. Extensive programming in MATLAB was needed to obtain the results in my Ph.D. dissertation topic. MATLAB programming was also required for my Master’s project, and also for graduate level courses that I took at UTSA such as Fundamentals in Communications, Digital Image Processing, Linear Systems and Control.

• C

Completed coursework in Programming in C, a course offered in my undergraduate degree programs.

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• LabView

Have done assignments in LabView.

• Cadence® PSpice®

Have done assignments and homeworks in the circuit simulation software, Cadence® PSpice®.

• Programmable Logic Controller (PLC) and Programmable Controller (PC) Did my undergraduate project in Programmable Logic Controller and in Programmable Controller (PC).

• FORTRAN

The programming needed in some sections of my Master’s project were coded in FORTRAN. I have completed coursework in Programming in Fortran, a course offered in my undergraduate degree program.

• VPI Photonics

Have completed a project on the design of given fiber optic link using VPI Photonics Software.

PLANS FOR PROFESSIONAL STUDY AND FUTURE CAREER

My plan is to pursue research and work in industry as an engineer. 8 P a g e

REFERENCES

1. Artyom M. Grigoryan, Ph.D.

Associate Professor

Department of Electrical and Computer

Engineering, UTSA, Texas.

http://engineering.utsa.edu/agrigoryan/

ac7ulk@r.postjobfree.com

210-***-****

(Dr. Grigoryan was my doctoral

research supervisor.)

2. Lars K. Hansen, Ph.D.

Professor-in-Practice

Department of Electrical and Computer

Engineering, UTSA, Texas.

http://engineering.utsa.edu/lhansen/

ac7ulk@r.postjobfree.com

210-***-****

(I worked as a Graduate Teaching

Assistant/Assistant Instructor to Dr.

Hansen for four semesters.)

3. David Akopian, Ph.D.

Professor

Department of Electrical and Computer

Engineering, UTSA, Texas.

http://engineering.utsa.edu/dakopian/

ac7ulk@r.postjobfree.com

210-***-**** ***

4. Michelle J. Zhang, Ph.D.

Associate Professor

Department of Electrical and Computer

Engineering, UTSA, Texas.

http://engineering.utsa.edu/electrical-

computer/team/michelle-zhang/

ac7ulk@r.postjobfree.com

210-***-**** ***

5. Lucio Tavernini, Ph.D.

Emeritus Professor

Department of Mathematics

UTSA, Texas.

ac7ulk@r.postjobfree.com

http://www.math.utsa.edu/images/uplo

ads/TaverniniCV.pdf ***

***

(Dr. Akopian, Dr. Zhang, and Dr. Tavernini

were Members in my Doctoral Committee in

addition to my supervisor.)

Contact this candidate