Dr. Varun P Gopi

Research Interests

Signal Processing, Neuroimaging in Psychiatry, Circuit and Systems, Compressed Sensing, Biomedical Image Processing

Work Experience

November Assistant Professor, Department of Electronics and Communication , Government Engi-2013 - present neering College, Wayanadu, Kerala, India.

Courses taught include: Linear Algebra, Biomedical Signal Processing, Estimation & Detection Theory, Advanced Digital Signal Processing, Digital Image Processing, Multi-rate Signal Processing, Research Methodology for M. Tech.

January 2010 - Assistant Professor, Department of Electronics and communication, Amal Jyothi College May 2010 of Engineering, Kerala, India.

Courses taught include: Digital Image Processing, Digital Communication, Television Engineering.

Education

2010-2013   Doctor of Philosophy (Ph.D)

College National Institute of Technology Tiruchirappalli, Tamilnadu, India.

University  National Institute of Technology Tiruchirappalli

2007-2009   Master of Technology (M. Tech) in Signal Processing.

College College of Engineering Trivandrum, Kerala, India.

University  University of Kerala.

2003-2007   Bachelor of Technology (B. Tech) in Electronics and Communication Engineering.

College Amal jyothi College of Engineering Kanjirappally, Kerala, India.

University  Mahatma Gandhi University Kottayam, Kerala, India.

Society Membership

IEEE Member.

ISTE Member.

Books Authored

Basics of Electronics Engineering.

Introduction to Electronics Engineering

Subject Handled and Responsibilities

  • Theory Subjects: Linear Algebra , Biomedical Signal Processing, Estimation and Detection Theory, Advanced Digital Signal Processing, Digital Image Processing, Multi-rate Signal Processing, Research Methodology.
  • Member-Academic Council (2015-16), Government Engineering College Wayanad.

3  Placement Co-ordinator (2014 Onwards).

  • Kerala Technological University (KTU) Curriculum Committee Chairman for B-Tech Applied Electronics and Instrumentation.
  • KTU-B-Tech Question paper setting expert committee member (Electronics Branch).

6  IEEE Student Branch Counsellor (2014-16).

7  Post Graduation Staff Advisor.

8  Department Time Table Co-ordinator (2014-16)

Technical Talks

  • Delivered a Lecture on ’Sparsity in Signal Processing’ in Short Term Training Programme Sponsored by Directorate of Technical Education (DTE) on 17-03-2014 at Government Engineering College Calicut, Kerala, India.
  • Delivered Lectures in Workshop on ’MATLAB: Concept and Programming’ during 12-13 February 2015 at Younus College of Engineering, Kollam, Kerala, India.
  • Deliverd Talk on Research Methodology, Two Day Workshop on Research Methodology during 26-27 October 2015 at Government Engineering College, Kozhikode, Kerala, India.
  • Delivered a Lecture on ’Sparsity in Signal Processing’ in Short Term Training Programme Advancements in Communication and signal Processing, Sponsored by Directorate of Techni-cal Education (DTE) during 18-21 August 2015 at Government Engineering College Kannur, Kerala, India.
  • Delivered a Lecture on ’Compressed Sensing’ in Faculty Development Programme on Emerging Trends in Signal Processing during 18-23 September 2015 at College of Engineering Thalassery, Kerala, India.
  • Delivered a Lecture on ’Data Mining With MATLAB’ in Student Development Programme organized by IT Department during 17-18 August 2016 at Government Engineering College Sreekrishnapuram, Palakkad, Kerala, India.
  • Delivered a Lecture on ’Application of Signal Processing’ in Faculty Development Pro-gramme organized by Applied Electronics Department during 23-24 November 2016 at College of Engineering Kidangoor, Kerala, India.
  • Delivered a Lecture on ’Medical Image Processing’ in Faculty Development Programme on Advanced DSP and Applications organized by Electronics Department during 30 January-03 February 2017 at Government Engineering College Sreekrishnapuram, Palakkad, Kerala, India.
  • Delivered a Lecture on ’Image Processing in Medical Field’ in Technical Fest organized by IT Department on 21 February 2017 at Government Engineering College Sreekrishnapuram, Palakkad, Kerala, India.
  • Delivered a Lecture on ’Sparse Signal Processing’ in 4th National conference on Recent Advances in Engineering and Technology during 1-2 March 2017 at LBS College of Engineering, Kasargod, Kerala, India.
  • Delivered a Lecture on ’Mathematical Modelling in Medical Diagnosis’ in FDP on Applications of Mathematical Modelling and Adaptive Neuro- Fuzzy Sets for Designing an Efficient Medical Image Diagnosis System for Identifying Common Diseases during 20-21 September 2017 at Mahendra College of Engineering, Salem, Tamilnadu, India.

Conference Chaired

  • Chaired a technical session in GECian National Conference on Communication & Signal Processing, Sponsord by TEQIP II during 26-28 March 2014 at Government Engineering College Idukki ,Kerala, India.
  • Chaired a technical session in 15th National Conference on Technological Trends during 22-23 August 2015 at College of Engineering Trivandrum, Thiruvananthapuram, kerala, India.
  • Chaired a technical session in AGRIFEST-15, Sponsord by Dept. of Agriculture,Government of Kerala at Mananthavady, Kerala, India.
  • Chaired a technical session in PROBE-annual technical symposium of the Department of Electronics and Communication Engineering, NIT Tiruchirappalli, Tamilnadu, India.
  • Chaired in the 16th National Conference on Technological Trends during 11-12 Septem-ber 2015 at College of Engineering Trivandrum, Thiruvananthapuram, Kerala,India.
  • Chaired a technical session in International Conference on Emerging Trends in Engineer-ing, Science and Technology (ICETEST) during 09-11 December 2015 at Government Engineering College Thrissur, Kerala, India.
  • Chaired a technical session in Fifth National Conference on Emerging Technologies-2016 (NCET-2016) during 19-20 August 2016 at Government Engineering College Barton Hill, Trivandrum, Kerala, India.
  • Chaired technical sessions in International Conference on information systems, Energy, Environment and Safety-Emerging Scenarios (ISEES-2016) during 29-30 September 2016 at Government Engineering College Barton Hill, Trivandrum, Kerala, India.
  • Chaired technical sessions in 4th National conference on Recent Advances in Engi-neering and Technology (nCoreTech-2017) during 1-2 March 2017 at LBS College of Engineering, Kasargod, Kerala, India.

Workshop/Training Programmes Attended

  • Workshop on Research Methodology and Intellectual Property Rights during 15-17 January 2014 at Government Engineering College Wayanad
  • STTP on Hybrid Renewable Energy sources and Systems during 10-14 March 2014 at Government Engineering College Wayanad
  • Workshop on Strategic Planning and Institutional Governance during 31 March-1 April 2014 at Government Engineering College Wayanad
  • STTP on Electronics in Medical Diagnosis during 22-27 September 2014 at Government Engineering College Wayanad
  • Workshop on Pedagogical training in Engineering Education during 13-18 October 2014 at Government Engineering College Wayanad
  • Workshop on Fire Safety and Rescue Operations in Industry and Organizations on Emergency during 10-15 November 2014 at Government Engineering College Wayanad
  • 3rd National Knowledge Network (NKN) National Workshop during 15-17 December 2014 at Indian Institute of Technology, Guwahati
  • Medical Imaging: Techniques & Image Processing Workshop during 25-27 March 2016 at Indian Institute of Technology, Delhi
  • Pedagogical Training during 30 June-2 July 2016 at Indian Institute of Technology Madras, Chennai
  • STTP on Matlab and its Hardware Interface during 28 November-2 December 2016 at NITTTR, Chandigarh

Achievements and Extra Curricular Activities

  • KTU Researcher of the year 2016 Award
  • Recipient of Canadian Commonwealth Scholarship Award for Graduate student ex-change program in the year 2012.

3   Best Paper Award at International Conference on Information Processing (ICIP)-2012.

4. Organizing Secretary National Conference on Communication Computing & Signal Processing (NCCCSP’16), 26-28 May 2016.

5   Active Participant in Technical Events

6   Kerala Civil service Wayanad District Cricket Team Member

Under Graduate Project Guidance

Completed Projects

1   Li-Fi : Data Through Illumination

2 RFID Based Automatic Toll Collection System

3  Gesture Based Robotic Arm

4  Density Based Traffic Control System

5  EOG Based Human Computer Interface System

Post Graduate Project Guidance

Completed Projects

1     Dual Tree Complex Wavelet Transform Based Wireless Capsule Endoscopic  Image Enhancement.

2    Bleeding Detection in Wireless Capsule Endoscopic Images.

3  Ulcer Detection In Wireless Capsule Endoscopic Images.

4  Automated Colon Cancer Detection Using Hybrid Model.

5  Restoration of Faded Mural Images by Image Processing Technique.

6 Modified Brain MRI Segmentation to Detect Atrophic Disease-Funded by TEQIP II.

7  A Novel Method for Bleeding Detection in Wireless Capsule Endoscopic Images.

8   Identification of Ayurvedic Medicinal Plants by Image Processing of Leaf Samples-Funded by TEQIP II.

9   Novel Method for Fog Removal using Image Processing.

10  Analog CMOS Implementation of FFT using cascode current mirror.

11 Generalization of Various Transforms Used for Digital Signal Processing.

12  Compressed sensing image reconstruction based on wavelet and shearlet transform.

13  Medical Image Enhancement Using Quad Histogram Equalization And Anisotropic Diffusion

14 Detection of Alzheimer Disease In Brain Magnetic Resonance Images.

15 Bleeding Detection in Endoscopic Images.

16  Early Detection of Esophageal Cancer From Endoscopic Images Using Complex Wavelet Transform and Fractal Dimension.

17 ICT Image Denoising Using Edge Adaptive Total Variation And Augmented Lagrangian Method.

18  Image Restoration Using Blind In-painting.

19  Early Detection of Schizophrenia Using MR Images-Funded by TEQIP II.

20  Glaucoma Detection and Classification using Digital Fundus Images.

21  Hybrid Regularization Based Edge Preserving Image Reconstruction.

22 Design of Reconfigurable Transform for Signal Processing.

23  Development of an efficient algorithm for Medicinal Plant Identification-Funded by TEQIP II.

24  Carrier Frequency Offset Compensation in Uplink OFDMA.

25 Forest Fire Detection Using Wireless Sensor Network.

26 Automatic Detection of Microaneurysm in Retinal Fundus Images

27   Speckle Noise Reduction Methods for Retinal OCT Images

28  Automatic Detection of Lesion in Retinal Fundus Images

29   Detection of Macular Edema and Central Serous Retinopathy from OCT Images

30  Development of an Efficient Method for Deconvolution of Micro OCT Images

31 PCA Based Localization Approach for Segmentation of Optic Disc

32 Acceleration Vibration Signal Processing for Road Surface Monitoring

33 Biometric Identification using Dorsal Hand Veins

On Going Projects

1 Sparsity Based Approach for Accurate Heart Rate Monitoring During Physical Exercises from PPG Signals

2 Prediction of Mild Cognitive Impairment to Alzheimer’s Disease Using Structural MRI

3  Sparse signal processing based ECG denoising

4  Development of an efficient method for colour image restoration

PhD Guidance

1    Manu Raju-Prediction of progression rate of Mild Cognitive Impairment to Alzheimer’s Disease

2   Nija K. S.- Localization and segmentation of Optic Disc, Fovea and Blood Vessels for Detection of Eye diseases

3   Sabi S.- Development of efficient algorithms to segment retinal OCT images

Funded Projects

1 Development of Efficient Algorithms for Detecting Eye Diseases-Rs.15,00,000

Papers Published

International Journals

  • Jemshi K. M., Varun P. Gopi., Issac Niwas S., “Development of an Efficient Algorithm for the Detection of Macular Edema from Optical Coherence Tomography Images,” Springer- Journal of Computer Assisted Radiology and Surgery
  • Kausu T. R, Varun P. Gopi, Khan A. Wahid, Wangchuk Doma, S. Issac Niwas, “Combination of Clinical and Multiresolution Features for Glaucoma detection and its classification using Fundus Images,” Elsevier-journal of Biocybernetics and Biomedical engineering, in press
  • Varun P. Gopi, Anjali M. S., Issac Niwas S., “PCA Based Localization Approach for Segmentation of Optic Disc,” Springer-Journal of Computer Assisted Radiology and Surgery, in press
  • Harikrishnan P. M., Varun P. Gopi., “Vehicle Vibration Signal Processing for Road Surface Monitoring,” IEEE-Sensor Journal,17, Issue 16, 2017, pp. 5192-5197.
  • Reshma P.G., Varun P. Gopi, V. Suresh Babu, Khan A. Wahid., “Analog CMOS implemen-tation of FFT using Cascode current mirror”, Elsevier Microelectronics Journal, Volume 60, February 2017, Pages 30-37.
  • Seyed Ali Melli, Khan A. Wahid, Paul Babyn, David M.L. Cooper and Varun P. Gopi., “A sparsity-based iterative algorithm for reconstruction of Micro-CT images from highly undersampled projection datasets obtained with a synchrotron X-ray source”, Review of Scientific Instruments, 87,123701, 2016.
  • Varun P. Gopi, P. Palanisamy, Khan A. Wahid, Paul Babyn, David Cooper.,“Iterative Computed Tomography Reconstruction from Sparse-View Data”,American Scientific Publishers-Journal of Medical Imaging Health Informatics, Vol. 6, 1−13, 2016.
  • Varun P. Gopi, V. Suresh Babu, Haseena P. S., M. R. Baiju.,“A Floating Gate MOSFET Based Novel Programmable Current Reference”, World Academy of Science, Engineer-ing and Technology International Journal of Electrical, Robotics, Electronics and Communications Engineering,Vol:8 No:6, 2014.
  • Varun P. Gopi, Dilna C., V. Suresh Babu.,“Image Resolution Enhancement Using Undeci-mated Double Density Wavelet Transform”, Signal Processing: An International Journal (SPIJ), Volume-8 Issue-4: 2014.
  • Varun P. Gopi, P. Palanisamy, Khan A. Wahid, Paul Babyn.,“Multiple regularization based MRI reconstruction”, Elsevier-Signal Processing, Volume 103, pp. 103-113, 2014
  • Varun P. Gopi, P. Palanisamy, Khan A. Wahid, Paul Babyn.,“MR Image Reconstruction Based on nonlocal total variation and Framelets using Split Bregman method”, Springer Computer Assisted Radiology and Surgery, Volume 9, Issues 3, pp. 459-472, 2014.
  • Varun P. Gopi, P. Palanisamy, Khan A. Wahid, Paul Babyn, David Cooper.,“Micro-CT Image Reconstruction Based on Alternating Direction Augmented Lagrangian method and Total Variation,”, Elsevier-Computerized Medical Imaging and Graphics, Volume-37 Issue-7-8, pp. 419-429, 2013.
  • Varun P. Gopi, P. Palanisamy, Khan A. Wahid, Paul Babyn.,“MR Image Reconstruc-tion Based on Iterative Split Bregman algorithm and nonlocal total variation”, Journal of Computational and Mathematical Methods in Medicine, Vol. 2013.
  • Varun P. Gopi, P. Palanisamy., “Capsule Endoscopic Image Denoising Based on Double density dual tree complex wavelet Transform”, International Journal of Imaging and Robotics, Volume-9 Issue-1: 2012.

International Conferences

  • Dilna C., Varun P. Gopi, “Bleeding Detection in Endoscopic Images Using Histogram Analysis and Bleeding Detector Functions” , International Conference On Electrical, Electronics, Computers, Communication, Mechanical And Computing (EECCMC).
  • Manojkumar P., Surya C. M., Varun P. Gopi, “Identification of Ayurvedic Medicinal Plants by Image Processing of Leaf Samples”,2017 Third IEEE International Conference on Research in Computational Intelligence and Communication Networks
  • Liji C. V., Varun P. Gopi, “Early Detection of Schizophrenia in Gray Matter Using MR Images”2nd International Conference on Contemporary Computing and Informatics, in press.
  • Fasna K. K, Varun P. Gopi, “Low-Complexity CFO Compensation Technique for Uplink OFDMA ”International conference on signal processing, communication Power and embedded systems (SCOPES-16), in press.
  • Reeha K.R., Shailaja K., Varun P. Gopi., “Undecimated Complex Wavelet Transform based Bleeding Detection for Endoscopic Images, ”International Conference on Cognitive Computing and Information Processing 2016 (CCIP 16), in press.
  • Dilna C., Varun P. Gopi., “A Novel Method for Bleeding Detection in Wireless Capsule Endoscopic Images, ”2015 International Conference on Computing and Network Communications (CoCoNet), pp. 854-858, 16-19 Dec. 2015.
  • Beema Akbar, Varun P Gopi, V. Suresh Babu., “Colon cancer detection based on structural and statistical pattern recognition” ,IEEE International Conference on Electronics and Communication Systems (ICECS’15), pp. 1735 -1739, 26-27 Feb. 2015.
  • Nimisha Elsa Koshy, Varun P Gopi,“A new method for ulcer detection in endoscopic images” ,IEEE International Conference on Electronics and Communication Systems (ICECS’15), pp. 1725-1729, 26-27 Feb. 2015.
  • Mekha Mathew, Varun P Gopi., “Transform based bleeding detection technique for endo-scopic images” ,IEEE International Conference on Electronics and Communication Systems (ICECS’15) , pp. 1730 - 1734, 26-27 Feb. 2015.
  • Aswani Arayakkandi, Varun P. Gopi., “Dual Tree Complex Wavelet Transform Based Wire-less Capsule Endoscopic Image Enhancement ” ,IEEE International Conference on Contemporary Computing and Informatics (IC3I-2014) , SJCE Mysore,Karnataka India.
  • Suraj Kumar Singh, Varun P. Gopi., “Image Security using DES and RNS with Reversible Watermarking” ,IEEE International Conference on Electronics and Communication Systems (ICECS-2014), pp. 1-5, 2014.
  • Salini Thankachan, V. Suresh Babu, M. R. Baiju and Varun P. Gopi., “A Novel Programmable Current Reference with FGMOSFETs”,Proceedings of the 2014 International Conference on Circuits, Systems and Control (CSPC’14), pp. 96−99, 2014.
  • Varun P. Gopi, Pavithran M., Nishanth T., Balaji S., Rajavelu V., P. Palanisamy., “A novel Wavelet based denoising algorithm using level dependent thresholding” ,IEEE International Conference on Electronics and Communication Systems (ICECS’14), pp. 1−6, 2014.
  • Varun P. Gopi, Fayiz T. K., P. Palanisamy., “Regularization Based CT Image Reconstruction Using Algebraic Techniques” ,IEEE International Conference on Electronics and Communication Systems (ICECS’14), pp. 1−3, 2014.
  • Varun P. Gopi, Pavithran M., Nishanth T., Balaji S., Rajavelu V., P. Palanisamy., “Undecimated Double Density Dual Tree Wavelet Transform Based Image Denoising Using Subband Adaptive Thresholding” ,IEEE International Conference on Issues and Challenges in Intelligent Computing Techniques (ICICT’14), pp. 743−748, 2014.
  • Varun P. Gopi, Pavithran M., Nishanth T., Balaji S., Rajavelu V., P. Palanisamy., “Image denoising based on undecimated Double Density Dual Tree Wavelet Transform and Modified Firm Shrinkage” ,2nd IEEE International Conference on Advanced Computing, Networking and Security (ADCONS’13), pp. 68−73, 2014.
  • Varun P. Gopi, Zangen Zhu, P. Palanisamy, Khan A. Wahid, Paul Babyn., “Iterative method for CT image reconstruction from reduced number of projection views” ,26th Annual IEEE Canadian Conference on Electrical and Computer Engineering (CCECE’13), pp. 1−4, August 2013.
  • Varun P. Gopi, P. Palanisamy., “CT Image Reconstruction Based on Combination of Iterative Reconstruction Technique and Total Variation”, IEEE International Conference of Signal Processing, Image Processing and Pattern Recognition (ICSIPR’13) , pp. 49−52, April 2013.
  • Varun P. Gopi, P. Palanisamy, Issac Niwas S., “Capsule Endoscopic Colour Image Denoising Using Complex Wavelet Transform” ,Springer International Conference on Information processing (ICIP),pp. 220−229, Aug. 2012.
  • Varun P. Gopi, P. Palanisamy., “Endoscopic image compression based on Double Density Discrete Wavelet Transform and SPIHT coding” ,IEEE International Conference on Control System, Computing and Engineering (ICCSCE), pp. 466−471, Nov. 2011.
  • Varun P. Gopi, V. Suresh Babu, M. R Baiju., “Scaling issues in IDDG FinFET at Small Gate Length” ,Proc. of 3rd IEEE International Conference on Information Sciences and Interaction Sciences, Chengdu, China, pp. 683−687, June 2010.

National Conferences

  • Amrutha Ravi, Sreejith S., Varun P. Gopi., “MR Image Enhancement using Dual Tree Complex Wavelet Transform” ,National Conference on Systems Energy and Environment (NCSEE), September 2015.
  • Varun P. Gopi, Fayiz T. K., “Total Variation Based CT Image Reconstruction using Iterative Techniques” ,Proc. of 4th National Technological congress, Feb. 2014.
  • Suraj Kumar Singh, Varun P. Gopi., “Security of an Image using Reversible Watermarking with RNS” ,Proc. of 4th National Technological congress, Feb. 2014.
  • Varun P.Gopi, V. Suresh Babu, M. R Baiju., “Independently Driven Double gate FinFET Scalable to 10 nm” ,Proc. of 10th National Conference on Technological Trends, pp. 319−324, Nov. 2009.

Papers Under Review

International Journals

  • Beejesh A. G., Varun P. Gopi, Khan A. Wahid, Paul Babyn., “Brain MR Kurtosis imag-ing study: Contrasting Gray and White matter", International Journal of Image and Graphics.
  • Nimisha Rajan, Varun P. Gopi., “A Novel Fog Removal Method based on Wavelet Transform and Weighted Least Square filter,” Springer-Journal of Multidimensional Systems and Signal Processing
  • Anusha T. S., Varun P. Gopi., “Hybrid Regularization Based Edge Preserving Image Re-construction,” Elsevier-Journal of Mathematical Imaging and Vision
  • Resmi Raveendran, Varun P. Gopi., “Generalized Sequency-ordered Discrete Orthogonal Transform” ,IET Signal Processing Journal.
  • Nadiya K., Varun P. Gopi., “Dorsal Hand Vein Biometric Recognition Based on Orientation of Local Binary Pattern,” Springer-Journal of Multimedia Tools and applications
  • Avinash A., Biju P., Varun P. Gopi., “Automated detection of Microaneurysm in Retinal Fundus Images,” Springer-Journal of Computer Assisted Radiology and Surgery.
  • Varun P. Gopi., Nija K. S., Manu Raju, Anupama C. P., Surya C. M., “An Automated method of Optic Disc Detection from Retinal Fundus Images,” Springer-Journal of Neural Computing and applications
  • Remya P., Suresh Babu V., Varun P. Gopi, “A High Gain Low Cost Microstip Patch Antenna for GPS Applications,” Springer-Journal of Wireless Personal Communications
  • Soumya R., Suresh Babu V., Varun P. Gopi, “Realization of Magnitude Comparator using Threshold Logic,” Elsevier-Microelectronics Journal
Academic Area
Education

PhD

Awards and Honors

KTU Researcher of the year 2016

Academic Appointments

KTU Curriculum Committee Chairman, AE&I Branch. KTU BTech Question Paper setting expert committee member (ECE), Placement coordinator GEC Wayanad, Doctor Committee member ( CSE Department, VIT)

Address
Palakuzhiyil house, Mundakayam P O, Kottayam,686513 (PIN)
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