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Mehul S. Raval

Associate Professor
Ph.D. (Electronics and Telecommunication Engineering), Pune University, India
Areas of interest
Computer Vision, Image processing, Machine Learning, Reversible Data Hiding, Soft biometrics

Opening as Senior Research Fellow on a Sponsored Research Project

Mehul S Raval joined Ahmedabad University as an Associate Professor in 2013. Earlier he served DA-IICT (2008-2013), Gandhinagar and Sarvajanik College of Engineering and Technology (SCET), Surat (1997 - 2008), India. He was a visiting faculty to SVNIT (2005 - 2007) Surat and Veer Narmad South Gujarat University (2004 - 2008), Surat, India. Dr. Raval visited Graduate School of Natural Science and Technology, Okayama University, Japan during July- August 2016 under Sakura science exchange program sponsored by Japan Science and Technology (JST), Govt. of Japan. He was an Argosy visiting Associate Professor at Olin College of Engineering, MA, US during Fall 2016.

He is an alumnus of Electronics & Telecommunication Engineering department, College of Engineering Pune (COEP), one of the oldest engineering institute in Asia (established in 1854). He obtained his Bachelor of Electronics and Telecommunication Engineering (B.E. E&TC) in 1996, Master of Engineering (M.E.) in Digital Systems in 2002.

Dr. Raval co-authored a book on  Image and Video Compression: Fundamentals, Techniques and Applications for CRC press and has published extensively in journals, magazines, conferences, workshops at national and international level. He serves as member of technical program committees for leading national and international conferences, workshops and symposium and reviews journals articles of IEEE, ACM, Springer, Elsevier, IET. He has received research funds from Board of Research in Nuclear Science (BRNS), Department of Atomic Energy, Government of India and IEEE. 

He is currently supervising two doctoral students and many have completed M. Tech theses and B. Tech projects under his supervision.   He is member of Board of Studies for various universities. He is a senior member of IEEE and a Fellow of IETE. Dr. Raval served  IEEE Gujarat section during 2008 - 2015. He also served IEEE Gujarat section signal processing society chapter as vice chair and exe-com member in 2014.

Google Scholar Profile

Research Gate resources

Awards, Grants, Fellowships

  • NVIDIA Corporation GPU grant 2017 for Quadro M5000 GPU, September 2017
  • Best Paper Award at IEEE International Conference On Computing, Analytics and Security Trends (CAST-2016)" at College of Engineering Pune during 19th to 21st December, 2016.
  • Argosy Visiting Associate Professor, Fall 2016, Olin College of Engineering, Olin Way, Needham, MA, 02492, US
  • Fellowship under Sakura Exchange Program in Science for Collaborative Research Activity Course B  at Okayama University , Japan, July - August 2016
  • Appreciation Award as Guide under Gandhian Young Technological Award (GYTI) - 2016 to CheckIT: A Low cost mobile OMR system, 
  • Team members:Students Shaswat Sanghavi and Rahul Patel,  B.Tech ICT
  •  Guide Mehul S Raval, Dhruv Gupta, March 2016
  • Distinguished Speaker Computer Society of India, Region III, 2015
  • Appreciation Certificate for "Dedicated leadership and support of the activities for SPS Chapter", IEEE Signal Processing society (SPS), 2014
  • Elected as Senior Member (SM), IEEE, 2013
  • IEEE Region-10 Outstanding Branch Counselor award for 2012.
  • Elected as Senior Member, Computer Society of India (CSI), 2009.
  • Sardar Patel University and Hari Om Ashram Prerit Best Computer Science and Engineering Paper award, 2008.
  • Elected as Fellow for Institution of Electronics and Telecommunication Engineers, New Delhi, 2008.
  • Appreciation certificate from Sarvajanik College of Engineering and Technology for exemplary service, 2008.
  • Indian Society for Technical Education (ISTE) Best Engineering College Teacher award for the State of Gujarat, 2005.
  • Young Scientist Fellowship by Department of Science and Technology, GUJCOST, Govt. of Gujarat, 2005.
  • Securing Best Chapter award for CSI Surat chapter for Category III, 2004-05.
  • Best Paper award at National Conference on Image Processing (NCIP) Bangalore, 2005.

Research Projects

Description based person identification in unconstrained surveillance video (2016 - 2019)

Sponsoring agency: Board of Research in Nuclear Science (BRNS), Bhabha Atomic Research Centre, Department of Atomic Energy, Government of India.
Grant Amount: Rs. 20.92 lacs
Research Team:
Principal Investigator (PI): Mehul S Raval, Associate Professor, School of Engineering and Applied Science, Ahmedabad University
CI: Sanjay Chaudhary, Professor and Associate Dean, School of Engineering and Applied Science, Ahmedabad University
Project Collaborator (PC): Anand Laddha, Scientific Officer - G, Physical Protection System Section, Control Instrumentation Division, BARC, Trombay.

Project Detail:

The goal of the project is to locate a person-of-interest based on specific set of soft biometric attributes from a surveillance video without prior registration. The project will integrate and minimize semantic gap between human descriptions and soft biometric traits. Moreover it aims at extracting soft biometric features from an input image or a video frame and then uses these features to locate a matching individual in the video stream. This project will add another dimension to surveillance as human cognitive perceptions are used while searching the video streams.

Title: Developing Data Analytics Architecture: Applications in Agriculture (2017 - 2019)

Sponsoring agency: Department of Science and Technology, New Delhi, (NRDMS - NSDI)

Grant Amount: Rs. 27.51 lacs

Research Team:

Principal Investigator: Sanjay Chaudhary, Professor and Associate Dean, School of Engineering and Applied Science, Ahmedabad University

Co-Principal Investigator (Co-PI): Mehul S Raval, Associate Professor, School of Engineering and Applied Science, Ahmedabad University


Project Detail:

Geo-spatial data is very important to develop flexible and versatile functions and applications, for developing multidisciplinary applications, helping in planning, managing and utilizing natural resources efficiently using spatial analysis. We need common standards for data integration and effective analytical infrastructure and we aim to use OGC standards for big data processing of spatial data. The core scientific and technological objectives are:

  • Development of big data integration and analytical platform built on open source architecture for enrichment of large data sets including geo-spatial data bases. Agriculture will be used as the domain to realize various aspects of proposed architecture.

  • Integration with already developed and deployed Decision Support Systems and Spatial Decision Support Systems for an application domain.

  • Indexing, querying, analyzing, and visualizing Geo-spatial data at scale using open source.

  • To connect structured and unstructured data in real time or batch processing for data management and analytics of systems for decision making in operational environment, e.g applications like agro advisory system should be able to process event streams in a real time, extract relevant information and identify values that do not follow the general trends.

  • Develop and implement distributed algorithm(s) to store and process geo-spatial data.

  • Implement advanced data structures to store and process geo-spatial data in an efficient manner.


Securing biometric data using data hiding techniques (2010 - 2013)

Sponsoring agency: Board of Research in Nuclear Science (BRNS), Bhabha Atomic Research Centre, Department of Atomic Energy, Government of India.
Grant Amount: Rs. 14,00,000 
Research Team:
Principal Investigator (PI): Mehul S Raval
CI: Priti P. Rege, Professor and Dean Academics,  COEP, Pune
Project Collaborator (PC): S K Parulekar, Scientist H+, Head Computer security division, BARC, Mumbai.
SRF: Vaibhav Joshi,  DA-IICT
Project Detail:
Biometrics based authentication systems have been gaining widespread acceptance in the information security domain. However there are several loopholes in biometric systems. This project aims at improving the security and authentication mechanisms of biometric systems by using complementary data hiding techniques. Fragile watermarking will be used to check the integrity and authenticity of biometric templates before identification. This will improve the overall security. 

Techniques for Robust Face Recognition with Pose Variations (2012 - 2015)
Sponsoring agency: Board of Research in Nuclear Science (BRNS), Bhabha Atomic Research Centre, Department of Atomic Energy, Government of India.
Grant Amount: Rs. 19,00,000
Research Team:
Principal Investigator: Suman Mitra, Professor, DA-IICT.
Co-Investigator: Prof. Mehul S Raval
Project Collaborator (PC): S K Parulekar, Scientist H+, Head Computer security division, BARC, Mumbai.
Project Details:
Face recognition is the most common and natural means for person identification. This has been a prime focus of research since the introduction of digital technology. Within the scope of machine vision, face recognition sets a great challenge due to the dynamic conditions under which face images are captured. One of the most challenging tasks is to recognize the face under varying poses. Research is continuing to propose more robust face recognition systems, especially under pose variations. An additional challenge is face recognition from partial information or when the face has undergone some changes. The present project aims to improve the face recognition system so as to handle pose variations and face recognition from partial information. Most of the current systems of face recognition try to get face features which are global in nature and then use these in recognition. Here, a system would be built that captures global as well as local features to make more accurate decisions. The present system would also take up a modular approach that would enable recognition from important areas such as the eye region, the lip region and so on. This could be an answer to recognize faces even under disguise.



Vaibhav B Joshi, Mehul S Raval, Minoru Kuribayashi, "Reversible Data Hiding based Compressible Privacy Preserving System for Color Image", Springer Multimedia Tools and Applications, ISSN -1380-750. Impact Factor: 1.53 [Accepted]

Book Chapters

Mehul S Raval, "Reversible data hiding: An Active Forensic framework for digital images," Editor: Peter Stephenson, Information Security Management Handbook, Seventh Edition, CRC Press [Accepted]

Rupal Agravat, Mehul S Raval, "Deep Learning for Brain Tumor Segmentation", Editors: Nilanjan Dey, Amira S. Ashour, Fuqian Shi, Valentina E. Balas, Soft Computing Based Medical Image Analysis, Elsevier S&T Books [Accepted]

Technical Report

Minoru Kuribayashi, Vaibhav B. Joshi, Mehul S. Raval, "Compression-Friendly Reversible Data Hiding for Privacy Protection,"IEICE Enriched Multimedia (EMM 2017), Kagoshima University, Japan, Nov. 6th - 7th, 2017.










Madhuri A. Joshi, Mehul S. Raval, Yogesh H. Dandawate, Kalyani R. Joshi, Shilpa P. Metkar, Image and Video Compression: Fundamentals, Techniques and Applications , Chapman and Hall / CRC, FL, US, 17th Nov. 2014, DOI: 10.1201/b17738-1, Print ISBN 978-1-4822-2822-9 eBook ISBN: 978-1-4822-2823-6

Book Review for Image and Video Compression



Student Paper:




  • Joshi, M. V., Joshi, Vaibhav and Raval, Mehul S. "Multilevel semi-fragile watermarking technique for improving biometric fingerprint system security," in Intelligent Interactive Technologies and Multimedia, Anupam Agrawal, R. C. Tripathi, Ellen Yi-Luen Do and M. D. Tiwari Eds. Heidelberg: Springer, 2013, pp. 272-283.
  • Nutt, Victor, Kher, Shubhalaxmi and Raval, Mehul S.. "Fuzzy headlight intensity controller using wireless sensor network," in IEEE International Conference on Fuzzy Systems (FUZZ-IEEE 2013), Hyderabad, India, pp:1 - 6, July 7-10, 2013. 
  • Padalkar, Milind, Vora, Manali, Joshi, M.V., Zaveri, Mukesh & Raval, Mehul S., "Identifying Vandalized Regions in Facial Images of Statues for Inpainting", in A. Petrosino, L. Maddalena, P. Pala (Eds.): ICIAP 2013 Workshops, Springer-Verlag Berlin Heidelberg LNCS 8158, pp. 208–217, Naples, Italy, September 9th 2013. 
  • Raval, Mehul S., Joshi, M. V., Kher Shubhalaxmi, "Fuzzy Neural Based Copyright Protection Scheme for Superresolution", in IEEE International Conference on Systems, Man and Cybernetics(SMC 2013), pp: 328 - 332, Manchester, UK, October 13-16, 2013. 
  • Vaibhav Joshi,  Raval Mehul S., Suman Mitra, S. K. Parulkar, Priti P. Rege, "Reversible Watermarking Techniques to Enhance Security of Biometric Authentication System," IEEE NCVPRIPG 2013, IIT Jodhpur, 19 -21 Dec. 2013.

Monsoon 2017-18

CSP 200 Signals and Systems, B.Tech, ICT, Semester III

CSP 502 Computer Vision, B.Tech, ICT, Semester VII

Winter 2016-17

Digital Signal Processing, B.Tech (ICT), Sem VI

Machine Learning, M.Tech (Data Science and Analytics) Open elective to B.Tech ICT, Sem VI and VIII

Fall 2016

Quantitative Engineering Analysis, Sem. III, Bachelor of Science Program, Olin College of Engineering, Needham, Massachusetts, US, (Co-teaching)

Summer 2016

Machine Learning, PhD Program, SEAS

Winter 2016

Machine Learning, M.Tech (Data Science and Analytics) Open elective to B.Tech ICT, Sem VI and VIII

Monsoon 2015-16

Probability and Statistical Inference, M.Tech (Data Science and Analytics) and PhD Program

Signals and Systems, B.Tech, ICT, Semester III

Winter 2015

Machine Learning, M.Tech (Data Science and Analytics)

Monsoon 2014 - 15

Probability and Statistical Inference, M.Tech (Data Science and Analytics) and PhD Program

Signals and Systems, B.Tech, ICT, Semester III

Winter 2013 - 14

Course on Probability and Random Processes, B.Tech ICT,  Semester IV

 Monsoon 2013-14

Course on Computer Organization, B.Tech ICT, Semester III

Winter 2012-13

IT 518, Fuzzy Neural systems, M.Tech Machine Intelligence, Semester II.

Autumn 2012-13

IT 209, Computer Organization, B.Tech ICT, Semester II




IEEE Transaction on EducationSPIE Journal of Applied Remote SensingRoyal Society Open Science, Wireless communication and mobile computing, Elsevier Digital Communications and Networks,

IEEE Access, International Journal of Computing and Digital Systems (IJCDS)

Conferences Technical program committee and Reviewer

Member, Technical Program Committee, DSANRM2017: Workshop on ‘Data Science for Agriculture and Natural Resource Management (DSANRM), International Institute of Information Technology (IIIT, Hyderabad), Hyderabad, India, December 12, 2017

Member, Technical Program Committee, National Seminar on Computer Vision and Image Processing, 8th - 9th September 2017

Organizing Committee member, DST-UKIERI Faculty Development Program on Advance Wireless Communication, SEAS-AU, Aug. 16th to Aug. 20, 2017

Chair, Program Committee, Summer School on Learning in Data Science, SEAS-AU, 17th July to 22nd  July 2017

The 12th International Conference on Bio-inspired Computing: Theories and Applications (BIC-TA 2017) 1st -3rd, December, 2017, Harbin, China.

The Sixth National Conference on Computer Vision, Pattern Recognition, Image Processing and Graphics (NCVPRIPG), 16 - 19 December, 2017, Mandi, India

Intelligent Systems and Signal Processing, 24th - 25th March 2017, Vidyanagar, India

Signal Processing and integrated networks-2017, 2nd - 3rd March 2017, New Delhi, India

Signal 2017 May 21 - 25, 2017 - Barcelona, Spain

2nd International Conference on Computer, Communication and Computational Sciences, October 11-12, 2017, Phuket, Thailand

The International Conference on Data and Information Sciences (ICDIS-2017), November 3-4, 2017, Amarkantak, India 

23rd National Conference on Communications, March 2nd - 4th 2017, IIT Madras, India

International Conference on Soft Computing and its Engineering Applications (icSoftComp-2017), 1-2 December 2017, Changa, India


Probability and Statistics I and II, Summer School on Learning in Data Science, SEAS-AU, 18.7.2017 and 19.7.2017

Classification I and II, Summer School on Learning in Data Science, SEAS-AU, 21.7.2017 and 22.7.2017

SVM and Kernels, DST-UKIERI Faculty Development Program on Advance Wireless Communication, SEAS-AU, 18.8.2017




IEEE Transactions on Instrumentation & MeasurementIEEE Transactions on MultimediaNational Academy of Sciences, India Section A: Physical Sciences, SPIE Journal of Applied Remote SensingSpringer Plus, Journal of the Institution of Engineers (India): Series BSADHANA - Academy Proceedings in Engineering Sciences 

Member Technical Program committee / Reviewer 


  • National Conference on Commmunication, NCC 2016, Guwahati, India, 4 - 6 Mar. 2016
  • International Conference on Signal and Information Processing, IConSIP-2016, Shri Guru Gobind Singhji Institute, Nanded, Maharastra, India, 6 - 8 Oct. 2016
  • Conference on Advances in Signal Processing 2016 , Pune, Maharastra, India, 9  - 11, June 2016.
  • IEEE International Conference on Computing, Analytics and Security Trends, Pune, Maharastra, India, 19  - 21, Dec. 2016.


  • Data hiding techniques for securing biometrics, Security Workshop, Okayama University, Japan, 26th July 2016
  • Reflection on Living Within Olin Eco System, Olin College of Engineering, Needham, MA November 2016
  • Image Processing: International Conference on Research and Innovations in Science, Engineering & Technology ICRISET-2017, 17-19, February-2017, Vallabh Vidyanagar, Gujarat India
  • Robust Video Segmentation, LD College of Engineering. Ahmedabad April 2017.




Springer Proceedings of National Academy of Sciences, India, Section A: Physical Sciences, Springer Journal of The Institution of Engineers (India): Series B, Journal of Applied Remote Sensing, International Society for optics and photonics (SPIE), 


 Member Technical Program committee / Reviewer 


Honorary Position 

  • Vice Chair, IEEE Gujarat Section (2014):
  • Vice Chair, IEEE Gujarat section Signal Processing Society Chapter (2014) 
  • Program Co - Chair, IEEE National seminar on Computer Vision, Image Processing and Graphics (NaSCOVIP) 2014, 19th and 20th Sept. 2014, Surat, Gujarat,
  • Organizing Chair, IEEE Emerging Research Trends in Engineering (ERTE 2014), 19th - 20th July 2014, Ahmedabad,Gujarat, 



Journal of The Institution of Engineers (India): Series B: Springer, Image and Vision Computing: Elsevier, IEEE Transactions on Multimedia, Taylor and Francis - International Journal of Computer Mathematics, SEAS - Image Processing, The National Academy of Sciences, Physical Sciences (NASA): Springer, Biomedical Engineering: Applications, Basis and Communications: World Scientific

Conferences Technical Program Committee member

  • Advancement in Information Technology International Conference, Bandung, Indonesia,  29th – 31st December 2014.
  • IEEE International conference on advanced networks and Telecommunication systems (ANTS 2014), 14th - 17th December 2014, New Delhi.
  • IEEE Symposium on Industrial Electronics & Applications (ISIEA2014), Kota Kinabalu, Sabah, Malaysia, September 28 to October 1, 2014.
  • IEEE Symposium on Wireless Technology & Applications, Kota Kinabalu, Malaysia, September 28 to October 1, 2014.
  • 3rd International Conference on Advances in Computing, Communications and Informatics, Noida, 24th - 27th September 2014.
  • International Workshop on Mobile Applications, Barcelona, Spain, 27-29 August 2014.
  • 2014 International Workshop on the Design and Performance of Networks on Chip (DPNoC 2014), Niagara Falls, Ontario, Canada, August 17-20, 2014.
  • 7th International Conference on Contemporary computing IC3 2014, Noida, August 7th - 9th 2014
  • Nature and Biologically Inspired Computing (NaBIC’14), Porto, Portugal, July 30, 31 - August 01, 2014.
  • Computational aspect of Social network, Porto, Portugal, July 30, 31 - August 01, 2014.
  • 10th IEEE Colloquium on Signal Processing and its Applications (CSPA2014) IEEE Malaysia Chapter Control Systems Society, Kuala Lumpur, Malaysia on the 7th to 9th of March 2014.
  • National Conference on Communication (NCC 2014), 28th Feb - 2nd March 2014, IIT Kanpur.



The Computer Journal, Oxford Journals, IEEE Transactions on Geoscience and Remote Sensing (TGRS), EURASIP Journal on Advances in Signal Processing, Taylor and Francis - International Journal of Computer Mathematics, IEEE Transactions on Multimedia

Reviewer and Technical Program Commitee Member: 2013

  • IEEE Symposium on Computers & Informatics, Langkawi, Malaysia, from 7 - 9 April 2013.
  • IEEE Business Engineering and Industrial Applications Colloquium 2013, Langkawi, Malaysia,  7 – 9 April 2013.
  • 2nd IEEE International Conference on Advances in Computing, Communications and Informatics, Mysore, India, 22nd - 25th August 2013.
  • IEEE Symposium on Wireless Technology & Applications, Malaysia, 22nd - 25th September, 2013. 
  • IEEE Conference on Wireless Sensors, Kuching, Malaysia, 2nd – 4th, December 2013.
  • IEEE International RF and Microwave Conference (RFM 2013), Penang, Malaysia, 09 – 11, December, 2013.
  • Fourth National Conference on Computer Vision, Pattern Recognition, Image Processing and Graphics (NCVPRIPG), Jodhpur, India, 19 - 21st Dec. 2013.

Graduated PhD scholar

Niteen B Patel, Veer Narmad South Gujarat University, Surat, Gujarat, India, 2016.

Thesis on "Target Localization, Improving Tracking Accuracy and Energy Efficiency In Wireless Sensor Network"

PhD Committee Members

Current PhD scholars

  • Vaibhav B Joshi, "Securing Biometrics through Data hiding techniques", Ahmedabad University, Gujarat, India.
  • Rupal Agravat, "Robust Brain Tumor segmentation, Ahmedabad University, Gujarat, India.

B.Tech Students 2017- 18

  • Aashima Yuthika, "Monocular depth estimation for autonomous vehicle navigation", SEAS, AU
  • Vandit Gajjar, "Gender estimation using facial features in surveillance video", LD College of Engineering, Ahmedabad
  • Yash Khandhediya, "Gender Estimation in far field surveillance video", LD College of Engineering, Ahmedabad

Past MTech Students

  • Maruti Goswami, "Soft biometrics based person identification", SEAS, 2016-17
  • Pooja Patel, "Pattern classification of Protein sequences", SEAS, AU, 2015-16
  • Dhara Sangani, "Pansharpening in Remotely sensed images", L.D. College of Engineering. Ahmedabad, 2014 - 15
  • Dhruv Gupta, "Study of Fuzzy Clustering Algorithms and Enhanced Fuzzy Reasoning Applications to Texture Based Image Segmentation", DA-IICT, 2013-14.
  • Ronak Kosti,"Estimating Depth in a Single Image by Learning through Neural Network", DAIICT. 
  • Harikumar V, “Compressive sensing based multi resolution image fusion”, DA-IICT 2011-12.
  • Mr. Sandeep Juneja, “Collusion Resistive Watermarking techniques”, DA-IICT, 2010- 11
  • Mr. Akshay Gupta, “SVD based Robust Watermarking techniques” DA-IICT, 2008
  • Ms Arpita Parmar, “Reversible Watermarking techniques”, CIT Changa, Gujarat University, 2008.
  • Mr. Chirag Paunwala, “Robust watermarking techniques”, SGSITS Indore, 2006
  • Ms Hiral Desai, “ Correlation based watermarking technique”, M S University Baroda. 2005.

    Past B.Tech Student

    • 2016-17, Sachi Turakhia, "Brain Tumor Segmentation"
    • 2016-17, Priyansh Shah, "Person Identification from Surveillance videos: Use of Colours"
    • 2016-17, Sharvil Shah, "Person Identification from Surveillance videos: Use of material accessory"
    • 2014-15, Anuradha Chaudhary, "Development of Steganography and steganalysis framework", Dharmsinh Desai University, Nadiad.
    • 2015 - 16, Aditya Parikh, "Pest and Disease identification in cotton crop of North Gujarat", SEAS, AU
    • 2015 - 16, Anmol Anubhai, Rahul Patel, Shashwat Sanghavi, Kahinee - A Voice Aided Service for Rural Healthcare, SEAS, AU



    134, School of Engineering and Applied Science,
    Ahmedabad University,
    Ahmedabad Education Society FP. 4,
    Near Commerce Six Roads,
    Navrangpura, Ahmedabad - 380 009, India