Avik Bhattacharya

Bhattacharya received his M.Sc. degree in mathematics from Indian Institute of Technology Kharagpur, West Bengal, India, in 2000, and the Ph.D. degree in Indexing of Satellite Images Using Structural Information{{cite thesis |last1=Bhattacharya |first1=Avik |title=Indexing of satellite images using structural information |date=14 December 2007 |pages=1–179 |url=https://pastel.hal.science/pastel-00006275 |publisher=Télécom ParisTech |journal=Thèses en ligne de ParisTech|language=en}} from jointly at the Department of Traitement et Interprétation des Images, Télécom Paris-Tech, Paris, France and INRIA, ARIANA Project Group, Sophia Antipolis, France in 2007.{{cite web |title=TélécomParisTech/TSI -- PhD Defense of Avik Bhattacharya |url=http://www.tsi.telecom-paristech.fr/pages/events/the-bhattacharya.html |website=www.tsi.telecom-paristech.fr |publisher=Télécom ParisTech/TSI}}

Bhattacharya joined the Centre of Studies in Resources Engineering, Indian Institute of Technology Bombay, in 2011, as an assistant professor. He has been the principal and co-principal investigator of numerous projects sponsored by the Department of Science and Technology (DST), Defense Research and Development Organization (DRDO), Indian Space Research Organization (ISRO) and GEOGLAM-JECAM SAR Inter-Comparison Experiment.{{Cite web|url=http://jecam.org/studysite/india-vijayawada/|title=JECAM SAR Inter-Comparison Experiment|last=|first=|date=6 June 2018|website=www.geoglam.org|archive-url=|archive-date=|access-date=}} He has authored several scientific publications in refereed international journals and conference proceedings

Bhattacharya was the editor-in-chief of the IEEE Geoscience and Remote Sensing Letters (GRSL) (2019-2024).{{cite web |title=Editor-in-Chief of IEEE Geoscience and Remote Sensing Letters (GRSL) 2019 {{!}} IIT Bombay |url=http://www.iitb.ac.in/en/award/editor-chief-ieee-geoscience-and-remote-sensing-letters-grsl-2019 |website=www.iitb.ac.in}}{{cite web |title=GRSL Archives |url=http://www.grss-ieee.org/publication-category/grsl/ |website=GRSS {{!}} IEEE {{!}} Geoscience & Remote Sensing Society|date=14 February 2021 }}{{cite web |title=Chapters |url=http://www.grss-ieee.org/community/chapters/ |website=GRSS {{!}} IEEE {{!}} Geoscience & Remote Sensing Society}}{{Cite web|url=https://ieeexplore.ieee.org/xpl/aboutJournal.jsp?punumber=8859|title=IEEE Geoscience and Remote Sensing Letters (GRSL)|last=|first=|date=|website=|archive-url=|archive-date=|access-date=}} He is also the founding chairperson of the IEEE Geoscience and Remote Sensing Society (GRSS) Chapter, Bombay section, India.

Bhattacharya has also served as a visiting professor at the following institutes:

• LISTIC – Polytech Annecy-Chambéry, Université Savoie-Mont Blanc, France (2018){{cite web |title=ATELIER RECHERCHE IMAGERIE RADAR ET CRYOSPHÈRE À L'ÉCOLE D'INGÉNIEURS |url=https://www.polytech.univ-smb.fr/en/single-news/observer-la-terre-par-teledetection-avec-le-laboratoire-listic.html |website=www.polytech.univ-smb.fr}}{{cite web |title=Séminaire Dr. Avik Bhattacharya – jeudi 23 mai 2019 – 13h30 – A126 |url=https://www.listic.univ-smb.fr/seminaire-dr-avik-bhattacharya-jeudi-23-mai-2019-13h30-a126/ |website=LISTIC |language=fr-FR |date=23 May 2019}}
• Instituto Gulich, National University of Córdoba, Argentina Space Agency (CONAE), Argentina, (2018){{cite web |title=Remote Sensing Spring School in Argentina – SAR for Environmental and Production Monitoring |url=https://accedacris.ulpgc.es/bitstream/10553/69296/1/Remote%20Sensing%20Spring%20School%20in%20Argentina%20SAR%20for%20Environmental%20and%20Production%20Monitoring.pdf |website=accedacris.ulpgc.es}}
• Visiting Scientist at the Canadian Centre for Remote Sensing Ottawa, ON, Canada (2011){{cite web |title=Radar Remote Sensing: Perspectives and Applications |url=https://www.tifr.res.in/~aset/talk122818.html |website=tifr.res.in |publisher=Tata Institute of Fundamental Research (TIFR)}}

• Stochastic Distance Based Y4O Polarimetric SAR Decomposition (SDY4O)

This is a radar polarimetric decomposition technique based on the field of statistical information theory. Here a method is devised to estimate the polarization (OA) orientation angle from the full polarimetric SAR data using the Hellinger distance.{{cite journal |last1=Muhuri |first1=Arnab |last2=De |first2=Shaunak |last3=Manickam |first3=Surendar |last4=Dhingra |first4=Swinky |last5=Hariharan |first5=Siddharth |last6=Maity |first6=Abhishek |last7=Ratha |first7=Debanshu |last8=Bhattacharya |first8=Avik |title=Novel Scattering Power Decomposition Techniques for Full and Compact Polarimetric SAR Data |journal=National Symposium on Recent Advances in Remote Sensing and GIS with Special Emphasis on Mountain Ecosystems & Annual Conventions of Indian Society of Remote Sensing & Indian Society of Geomatics |date=December 7, 2016 |url=https://www.infona.pl/resource/bwmeta1.element.ID-a0689551-94b4-4c0b-b76c-7efb021b6a17 |language=English}}{{Cite journal|last1=Bhattacharya|first1=Avik|last2=Muhuri|first2=Arnab|last3=De|first3=Shaunak|last4=Manickam|first4=Surendar|last5=Frery|first5=Alejandro C.|date=July 2015|title=Modifying the Yamaguchi Four-Component Decomposition Scattering Powers Using a Stochastic Distance|journal=IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing|volume=8|issue=7|pages=3497–3506|doi=10.1109/jstars.2015.2420683|issn=1939-1404|bibcode=2015IJSTA...8.3497B|arxiv=1504.01000|s2cid=6498352}}

• Adaptive General Four-Component Scattering Power Decomposition

In this method, one out of the two types of complex special unitary transformation matrices is identified and chosen

to transform a unitary rotated coherency matrix in real space based on the greatest value of degree of polarization (DOP) commonly termed as adaptive general four-component scattering power decomposition method (AG4U).{{Cite journal|last1=Bhattacharya|first1=Avik|last2=Singh|first2=Gulab|last3=Manickam|first3=Surendar|last4=Yamaguchi|first4=Yoshio|date=October 2015|title=An Adaptive General Four-Component Scattering Power Decomposition With Unitary Transformation of Coherency Matrix (AG4U)|journal=IEEE Geoscience and Remote Sensing Letters|volume=12|issue=10|pages=2110–2114|doi=10.1109/lgrs.2015.2451369|issn=1545-598X|bibcode=2015IGRSL..12.2110B|s2cid=27146811}}

• Sen4Rice – A cloud-based SAR processing pipeline with Google Earth Engine

Here a framework for monitoring and mapping of rice fields especially from rice cultivation regions of India using time-series of Sentinel-1 data is developed using the Google Earth Engine's cloud computing platform.{{Cite journal|last1=Mandal|first1=Dipankar|last2=Kumar|first2=Vineet|last3=Bhattacharya|first3=Avik|last4=Rao|first4=Yalamanchili Subrahmanyeswara|last5=Siqueira|first5=Paul|last6=Bera|first6=Soumen|date=December 2018|title=Sen4Rice: A Processing Chain for Differentiating Early and Late Transplanted Rice Using Time-Series Sentinel-1 SAR Data With Google Earth Engine|journal=IEEE Geoscience and Remote Sensing Letters|volume=15|issue=12|pages=1947–1951|doi=10.1109/lgrs.2018.2865816|issn=1545-598X|bibcode=2018IGRSL..15.1947M|s2cid=56172393}}

Other significant research includes the development of various methods like the relative decorrelation Measure in Polarimetric SAR decomposition, decomposition algorithm development consisting of (S-Ω) and modified (m-χ), soil moisture estimation{{Cite journal |last=Bhogapurapu |first=Narayanarao |last2=Dey |first2=Subhadip |last3=Mandal |first3=Dipankar |last4=Bhattacharya |first4=Avik |last5=Karthikeyan |first5=L. |last6=McNairn |first6=Heather |last7=Rao |first7=Y. S. |date=2022-03-15 |title=Soil moisture retrieval over croplands using dual-pol L-band GRD SAR data |url=https://linkinghub.elsevier.com/retrieve/pii/S0034425722000141 |journal=Remote Sensing of Environment |volume=271 |pages=112900 |doi=10.1016/j.rse.2022.112900 |issn=0034-4257}}{{Cite journal |last=Bhogapurapu |first=Narayanarao |last2=Dey |first2=Subhadip |last3=Homayouni |first3=Saeid |last4=Bhattacharya |first4=Avik |last5=Rao |first5=Y. S. |date=2022-12-15 |title=Field-scale soil moisture estimation using sentinel-1 GRD SAR data |url=https://linkinghub.elsevier.com/retrieve/pii/S0273117722002058 |journal=Advances in Space Research |series=Advances in Spaceborne SAR Remote Sensing for Characterization of Natural and Manmade Features - Part 2 |volume=70 |issue=12 |pages=3845–3858 |doi=10.1016/j.asr.2022.03.019 |issn=0273-1177}} and crop monitoring using machine learning.{{cite web |last1=Subramani |first1=Balaram Vishnu |last2=Raman |first2=Spoorthy |title=Machine learning helps monitor crop growth {{!}} IIT Bombay |url=http://www.iitb.ac.in/en/research-highlight/machine-learning-helps-monitor-crop-growth |website=www.iitb.ac.in}} In the past, Prof. Bhattacharya was also actively involved in studies related to snow dynamics in the Himalayas involving SAR data from satellites like RADARSAT-2.{{cite journal |last1=Muhuri |first1=Arnab |last2=Manickam |first2=Surendar |last3=Bhattacharya |first3=Avik |title=Scattering Mechanism Based Snow Cover Mapping Using RADARSAT-2 C-Band Polarimetric SAR Data |journal=IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |date=July 2017 |volume=10 |issue=7 |pages=3213–3224 |doi=10.1109/JSTARS.2017.2681719 |bibcode=2017IJSTA..10.3213M |s2cid=23560686 |url=https://ieeexplore.ieee.org/document/7891548 |issn=1939-1404}}

• IEEE Geoscience and Remote Sensing Society Regional Leader Award (2024){{cite news |title=IEEE Geoscience and Remote Sensing Society (GRSS)'s Post |url=https://www.linkedin.com/posts/ieee-grss_exciting-wrap-up-of-igarss-2024-it-was-activity-7218990791413616640-E2tF |work=www.linkedin.com |publisher=IEEE |date=16 July 2024 |language=en}}
• Australian Government Endeavor Executive Fellowship Award (2016){{cite web |title=2007–2018 Endeavour Scholarship and Fellowship Recipients |url=https://internationaleducation.gov.au/Scholarships/Scholarships-and-Fellowships/2019/Documents/2007-2018%20Endeavour%20Scholarship%20and%20Fellowship%20recipients.pdf |website=www.internationaleducation.gov.au |publisher=The Department of Education, Skills and Employment, Australian Government}}
• Young Faculty Award, Indian Institute of Technology Bombay (2011)
• Visiting Scientist Fellowship at the Canada Centre for Remote Sensing under Canadian National Laboratories (2008)

{{Div col|colwidth=30em}}

• Polarimetry
• Synthetic Aperture Radar
• Remote sensing
• Interferometric SAR
• Satellite crop monitoring
• Remote sensing (geology)

{{div col end}}

• {{cite journal |last1=Bhogapurapu|first1=Narayanarao |last2=Dey|first2=Subhadip|last3=Bhattacharya |first3=Avik |last4=Mandal |first4=Dipankar |last5=Lopez-Sanchez|first5=JM |last6=McNairn|first6=Heather |last7=Lopez-Martinez|first7=Carlos |last8=Rao |first8=Y.S. |title=Dual-polarimetric descriptors from Sentinel-1 GRD SAR data for crop growth assessment. |journal=ISPRS Journal of Photogrammetry and Remote Sensing |date=August 2021 |volume=178 |pages=20–35|doi=10.1016/j.isprsjprs.2021.05.013 |bibcode=2021JPRS..178...20B |hdl=10045/115962 |s2cid=236594150 |hdl-access=free }}
• {{cite journal |last1=Kumar |first1=Vineet |last2=Mandal |first2=Dipankar |last3=Bhattacharya |first3=Avik |last4=Rao |first4=Y.S. |title=Crop characterization using an improved scattering power decomposition technique for compact polarimetric SAR data |journal=International Journal of Applied Earth Observation and Geoinformation |date=June 2020 |volume=88 |pages=102052 |doi=10.1016/j.jag.2020.102052|bibcode=2020IJAEO..8802052K |ref=none|doi-access=free }}
• {{cite journal |last1=Ratha |first1=Debanshu |last2=Pottier |first2=Eric |last3=Bhattacharya |first3=Avik |last4=Frery |first4=Alejandro C. |title=A PolSAR Scattering Power Factorization Framework and Novel Roll-Invariant Parameter-Based Unsupervised Classification Scheme Using a Geodesic Distance |journal=IEEE Transactions on Geoscience and Remote Sensing |date=May 2020 |volume=58 |issue=5 |pages=3509–3525 |doi=10.1109/TGRS.2019.2957514|bibcode=2020ITGRS..58.3509R |s2cid=195700216 |url=https://figshare.com/articles/journal_contribution/12471650 |ref=none}}
• {{cite journal |last1=De |first1=Shaunak |last2=Bruzzone |first2=Lorenzo |last3=Bhattacharya |first3=Avik |last4=Bovolo |first4=Francesca |last5=Chaudhuri |first5=Subhasis |title=A Novel Technique Based on Deep Learning and a Synthetic Target Database for Classification of Urban Areas in PolSAR Data |journal=IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |date=January 2018 |volume=11 |issue=1 |pages=154–170 |doi=10.1109/JSTARS.2017.2752282|bibcode=2018IJSTA..11..154D |s2cid=29626919 |ref=none}}
• {{cite journal |last1=Muhuri |first1=Arnab |last2=Manickam |first2=Surendar |last3=Bhattacharya |first3=Avik |title=Scattering Mechanism Based Snow Cover Mapping Using RADARSAT-2 C-Band Polarimetric SAR Data |journal=IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |date=July 2017 |volume=10 |issue=7 |pages=3213–3224 |doi=10.1109/JSTARS.2017.2681719|bibcode=2017IJSTA..10.3213M |s2cid=23560686 |ref=none}}

• {{cite book |last1=Mandal |first1=Dipankar |last2=Bhattacharya |first2=Avik |last3=Rao |first3=Yalamanchili Subrahmanyeswara |title=Radar Remote Sensing for Crop Biophysical Parameter Estimation |date=2021 |publisher=Springer Nature |location=Singapore |isbn=978-981-16-4423-8 |pages=XVIII, 236 |url=https://books.google.com/books?id=ISBN9789811644238 |language=en}}

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• {{Google Scholar id |RNtSqRgAAAAJ}}

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{{DEFAULTSORT:Bhattacharya, Avik}}

Category:1976 births

Category:Living people

Category:Academic staff of IIT Bombay

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Category:People from Kharagpur