Dr Shoaib Ehsan
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Email
sehsan@essex.ac.uk -
Location
5B.527, Colchester Campus
Profile
Biography
Dr Shoaib Ehsan is an experienced researcher, having won major research accolades, including the British Machine Vision Association's Sullivan Doctoral Thesis Prize (2013), and recognition as a 'Researcher with Exceptional Promise' by the Royal Academy of Engineering (2014). He is also a Senior Member of the IEEE. He has been involved in several EPSRC, ESRC and EU projects and has made significant contributions with his expertise in multiple fields, especially computer vision, embedded systems, robotics and artificial intelligence. Dr Ehsan has a strong track record of inclusive leadership/co-leadership of large international and national research projects and networks. For example, he is currently a Researcher Co-Investigator for the National Centre for Nuclear Robotics (NCNR), which is a 拢42M initiative by EPSRC, research institutions, industrial collaborators and investment partners. Dr Ehsan is co-leading a team of 12+ research students and post-docs at the 糖心Vlog.
Qualifications
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PhD 糖心Vlog, (2012)
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BSc Electrical Engineering University of Engineering and Technology Taxila, (2003)
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Post Graduate Certificate (PGCert) in Microprocessors and Microcontrollers University of Edinburgh, (2008)
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Post Graduate Certificate (PGCert) in VLSI Design University of Edinburgh, (2008)
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Post Graduate Certificate (PGCert) in IP Block Authoring University of Edinburgh, (2008)
Research and professional activities
Research interests
Computer Vision
Robotics
Embedded Systems
Artificial Intelligence
Teaching and supervision
Previous supervision
Degree subject: Computer Science
Degree type: Doctor of Philosophy
Awarded date: 8/1/2025
Degree subject: Computer Science
Degree type: Doctor of Philosophy
Awarded date: 23/9/2024
Degree subject: Computer Science
Degree type: Doctor of Philosophy
Awarded date: 22/9/2023
Degree subject: Computer Science
Degree type: Doctor of Philosophy
Awarded date: 21/8/2023
Degree subject: Computer Science
Degree type: Master of Science (by Dissertation)
Awarded date: 20/3/2023
Degree subject: Computer Science
Degree type: Doctor of Philosophy
Awarded date: 8/12/2022
Degree subject: Computing and Electronic Systems
Degree type: Doctor of Philosophy
Awarded date: 16/9/2022
Degree subject: Computing and Electronic Systems
Degree type: Master of Science (by Dissertation)
Awarded date: 3/11/2020
Degree subject: Computer Science
Degree type: Master of Science (by Dissertation)
Awarded date: 19/3/2020
Degree subject: Computing and Electronic Systems
Degree type: Master of Science (by Dissertation)
Awarded date: 14/1/2020
Degree subject: Computer Science
Degree type: Doctor of Philosophy
Awarded date: 21/11/2019
Degree subject: Computing and Electronic Systems
Degree type: Master of Science (by Dissertation)
Awarded date: 23/12/2016
Publications
Publications (13)
Waheed, S., Ferrarini, B., Milford, M., Ramchurn, SD. and Ehsan, S., (2025). Image-based Geo-localization for Robotics: Are Black-box Vision-Language Models there yet?
Grainge, O., Milford, M., Bodala, I., Ramchurn, SD. and Ehsan, S., (2025). TeTRA-VPR: A Ternary Transformer Approach for Compact Visual Place Recognition
Grainge, O., Milford, M., Bodala, I., Ramchurn, SD. and Ehsan, S., (2024). Structured Pruning for Efficient Visual Place Recognition
Fuady, S., Tarapore, D., Ehsan, S. and Soorati, MD., (2024). Collective Decision-Making on Task Allocation Feasibility
Ismagilov, T., Ferrarini, B., Milford, M., Nguyen, TVT., Ramchurn, SD. and Ehsan, S., (2024). On Motion Blur and Deblurring in Visual Place Recognition
Arcanjo, B., Ferrarini, B., Fasli, M., Milford, M., McDonald-Maier, KD. and Ehsan, S., (2023). Aggregating Multiple Bio-Inspired Image Region Classifiers For Effective And Lightweight Visual Place Recognition
Tomita, M-A., Ferrarini, B., Milford, M., McDonald-Maier, K. and Ehsan, S., (2023). Visual Place Recognition with Low-Resolution Images
Arcanjo, B., Ferrarini, B., Milford, M., McDonald-Maier, KD. and Ehsan, S., (2023). Patch-DrosoNet: Classifying Image Partitions With Fly-Inspired Models For Lightweight Visual Place Recognition
Waheed, M., Milford, M., Zhai, X., McDonald-Maier, K. and Ehsan, S., (2023). An Evaluation and Ranking of Different Voting Schemes for Improved Visual Place Recognition
Waheed, M., Waheed, S., Milford, M., McDonald-Maier, K. and Ehsan, S., (2023). A Complementarity-Based Switch-Fuse System for Improved Visual Place Recognition
Tomita, M-A., Ferrarini, B., Milford, M., McDonald-Maier, K. and Ehsan, S., (2023). Data-Efficient Sequence-Based Visual Place Recognition with Highly Compressed JPEG Images
Grainge, O., Milford, M., Bodala, I., Ramchurn, SD. and Ehsan, S., (2023). Design Space Exploration of Low-Bit Quantized Neural Networks for Visual Place Recognition
Tomita, M-A., Ferrarini, B., Milford, M., McDonald-Maier, K. and Ehsan, S., (2022). Data Efficient Visual Place Recognition Using Extremely JPEG-Compressed Images
Journal articles (49)
Dong, Y., Li, Z., Ehsan, S., Ding, Z. and Huang, X., (2025). Nash equilibrium seeking in non-cooperative heterogeneous multi-robot systems via output regulation. Neurocomputing. 619, 129179-129179
Grainge, O., Milford, M., Bodala, I., Ramchurn, SD. and Ehsan, S., (2025). Structured Pruning for Efficient Visual Place Recognition. IEEE Robotics and Automation Letters. 10 (2), 2024-2031
Ismagilov, T., Ferrarini, B., Milford, M., Tan Viet Tuyen, N., Ramchurn, SD. and Ehsan, S., (2025). On Motion Blur and Deblurring in Visual Place Recognition. IEEE Robotics and Automation Letters. 10 (5), 4746-4753
Grainge, O., Milford, M., Bodala, IP., Ramchurn, SD. and Ehsan, S., (2025). Structured Pruning for Efficient Visual Place Recognition.. IEEE Robotics Autom. Lett.. 10, 2024-2031
Waheed, S., Ferrarini, B., Milford, M., Ramchurn, SD. and Ehsan, S., (2025). Image-based Geo-localization for Robotics: Are Black-box Vision-Language Models there yet?. CoRR. abs/2501.16947
Arcanjo, B., Ferrarini, B., Fasli, M., Milford, M., McDonald-Maier, KD. and Ehsan, S., (2024). . IEEE Robotics and Automation Letters. 9 (4), 3315-3322
Fuady, S., Tarapore, D., Ehsan, S. and Soorati, MD., (2024). Collective Decision-Making on Task Allocation Feasibility.. CoRR. abs/2405.07799
Grainge, O., Milford, M., Bodala, I., Ramchurn, SD. and Ehsan, S., (2024). . IEEE Robotics and Automation Letters. 9 (6), 5070-5077
Khanam, Z., Aslam, B., Saha, S., Zhai, X., Ehsan, S., Stolkin, R. and McDonald-Maier, K., (2022). . IEEE Sensors Journal. 22 (18), 17378-17390
Saha, S., Zhai, X., Ehsan, S., Majeed, S. and McDonald-Maier, K., (2022). . IEEE Transactions on Systems, Man, and Cybernetics: Systems. 52 (6), 3885-3899
Lu, Y., Zhai, X., Saha, S., Ehsan, S. and McDonald-Maier, KD., (2022). . IEEE Systems Journal. 16 (1), 1436-1447
Minhas, S., Hernandez-Sabate, A., Ehsan, S. and McDonald-Maier, KD., (2022). . IEEE Transactions on Intelligent Transportation Systems. 23 (2), 1391-1399
Saha, S., Chakraborty, S., Zhai, X., Ehsan, S. and McDonald-Maier, K., (2022). . IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems. 41 (12), 5246-5260
Minhas, S., Khanam, Z., Ehsan, S., McDonald-Maier, K. and Hern谩ndez-Sabat茅, A., (2022). . Sensors. 22 (9), 3193-3193
Wachter, EW., Kasap, S., Kolozali, S., Zhai, X., Ehsan, S. and McDonald-Maier, K., (2022). . Nuclear Engineering and Technology. 54 (11), 3985-3995
Arcanjo, B., Ferrarini, B., Milford, M., McDonald-Maier, KD. and Ehsan, S., (2022). . IEEE Robotics and Automation Letters. 7 (2), 2527-2534
Ferrarini, B., Milford, MJ., McDonald-Maier, KD. and Ehsan, S., (2022). . IEEE Transactions on Robotics. 38 (4), 1-15
Tomita, M-A., Zaffar, M., Ferrarini, B., Milford, MJ., McDonald-Maier, KD. and Ehsan, S., (2022). . IEEE Access. 10, 81974-81987
Zaffar, M., Ehsan, S., Milford, M. and McDonald-Maier, K., (2021). . IEEE Transactions on Intelligent Transportation Systems. Early Access (12), 1-1
Khanam, Z., Saha, S., Ehsan, S., Stolkin, R. and McDonald-Maier, K., (2021). . IEEE Access. 9, 5412-5427
Lu, Y., Chen, X., Zhai, X., Saha, S., Ehsan, S., Su, J. and McDonald-Maier, K., (2021). . Microelectronics Reliability. 120, 114110-114110
Kasap, S., W盲chter, EW., Zhai, X., Ehsan, S. and McDonald-Maier, KD., (2021). . Microelectronics Reliability. 124, 114297-114297
Tomia, M-A., Zaffar, M., Milford, MJ., McDonald-Maier, KD. and Ehsan, S., (2021). . IEEE Access. 9, 118673-118683
Waheed, M., Milford, M., McDonald-Maier, K. and Ehsan, S., (2021). . IEEE Robotics and Automation Letters. 6 (3), 5976-5983
Zaffar, M., Garg, S., Milford, M., Kooij, J., Flynn, D., McDonald-Maier, K. and Ehsan, S., (2021). . International Journal of Computer Vision. 129 (7), 2136-2174
Kasap, S., W盲chter, EW., Zhai, X., Ehsan, S. and McDonald-Maier, K., (2021). . 2020 IEEE Nordic Circuits and Systems Conference, NORCAS 2020 - Proceedings, 1-7
Khaliq, A., Ehsan, S., Chen, Z., Milford, M. and McDonald-Maier, K., (2020). . IEEE Transactions on Robotics. 36 (2), 561-569
Moetesum, M., Siddiqi, I., Ehsan, S. and Vincent, N., (2020). Deformation modeling and classification using deep convolutional neural networks for computerized analysis of neuropsychological drawings. Neural Computing and Applications. 32 (16), 12909-12933
Ferrarini, B., Waheed, M., Waheed, S., Ehsan, S., Milford, MJ. and McDonald-Maier, K., (2020). . IEEE Robotics and Automation Letters. 5 (2), 1688-1695
Zaffar, M., Ehsan, S., Milford, M. and McDonald-Maier, K., (2020). . IEEE Robotics and Automation Letters. 5 (2), 1835-1842
Kasap, S., Weber Wachter, E., Zhai, X., Ehsan, S. and McDonald-Maier, K., (2020). . IEEE Access. 8, 28646-28658
Ferrarini, B., Milford, M., McDonald-Maier, KD. and Ehsan, S., (2020). Binary Neural Networks for Memory-Efficient and Effective Visual Place Recognition in Changing Environments.. CoRR. abs/2010.00716
Malik, QW., ur Rehman, N., Gull, S., Ehsan, S. and McDonald-Maier, K., (2019). . Circuits, Systems, and Signal Processing. 38 (1), 118-137
Kalliatakis, G., Ehsan, S., Leonardis, A., Fasli, M. and McDonald-Maier, KD., (2019). . IEEE Access. 7, 10045-10056
Naveed, K., Ehsan, S., McDonald-Maier, K. and ur Rehman, N., (2019). . Sensors. 19 (1), 206-206
Naveed, K., Shaukat, B., Ehsan, S., McDonald-Maier, KD. and Ur Rehman, N., (2019). . PLoS One. 14 (5), e0216197-e0216197
Ferrarini, B., Ehsan, S., Leonardis, A., Rehman, N. and McDonald-Maier, K., (2018). . IEEE Access. 6, 8564-8573
Zahra, A., Kanwal, N., ur Rehman, N., Ehsan, S. and McDonald-Maier, KD., (2017). . Computers in Biology and Medicine. 88, 132-141
Ehsan, S., Clark, A., Leonardis, A., ur Rehman, N., Khaliq, A., Fasli, M. and McDonald-Maier, K., (2016). . Remote Sensing. 8 (11), 928-928
Ferrarini, B., Ehsan, S., ur Rehman, N. and McDonald-Maier, K., (2016). . Journal of Electronic Imaging. 25 (1), 010501-010501
Ehsan, S., Clark, AF., Naveed ur Rehman and McDonald-Maier, KD., (2015). . Sensors. 15 (7), 16804-16830
Zhai, X., Appiah, K., Ehsan, S., Howells, G., Hu, H., Gu, D. and McDonald-Maier, KD., (2015). . IEEE Transactions on Information Forensics and Security. 10 (8), 1692-1704
Zhai, X., Appiah, K., Ehsan, S., Howells, G., Hu, H., Gu, D. and McDonald-Maier, K., (2015). . Journal of Systems Architecture. 61 (10), 567-575
Rehman, N., Ehsan, S., Naveed, K., McDonald-Maier, KD. and Safdar, MW., (2015). . Electronics Letters. 51 (24), 2049-2051
Rehman, NU., Ehsan, S., Abdullah, SMU., Akhtar, MJ., Mandic, DP. and McDonald-Maier, KD., (2015). . Sensors. 15 (5), 10923-10947
Ehsan, S., Clark, A. and McDonald-Maier, K., (2013). . Sensors. 13 (8), 10876-10907
Bostanci, E., Kanwal, N., Ehsan, S. and Clark, AF., (2013). . International Journal of Computer Theory and Engineering. 5 (1), 93-98
Ehsan, S., Kanwal, N., Clark, AF. and McDonald-Maier, KD., (2012). . IEEE Transactions on Image Processing. 21 (1), 297-304
Ehsan, S., Kanwal, N., Clark, AF. and McDonald-Maier, KD., (2010). . Electronics Letters. 46 (14), 998-998
Conferences (46)
Aslam, B., Saha, S., Zaffar, M., Ehsan, S., Zhai, X., Cazzaniga, C., Frost, C., McDonald-Maier, K. and Stolkin, R.,
Waheed, M., Waheed, S., Milford, M., McDonald-Maier, K. and Ehsan, S., (2023). A Complementarity-Based Switch-Fuse System for Improved Visual Place Recognition
Lu, Y., Zhai, X., Saha, S., Ehsan, S. and McDonald-Maier, KD., (2022). FPGA based Adaptive Hardware Acceleration for Multiple Deep Learning Tasks
Smith, WHB., Milford, M., McDonald-Maier, KD., Ehsan, S. and Fisher, RB., (2022). OpenSceneVLAD: Appearance Invariant, Open Set Scene Classification
Waheed, M., Milford, M., McDonald-Maier, K. and Ehsan, S., (2022). SwitchHit: A Probabilistic, Complementarity-Based Switching System for Improved Visual Place Recognition in Changing Environments
Ferrarini, B., Milford, M., McDonald-Maier, KD. and Ehsan, S., (2022). Highly-Efficient Binary Neural Networks for Visual Place Recognition
Saha, S., Adetomi, A., Zhai, X., Kasap, S., Ehsan, S., Arslan, T. and McDonald-Maier, K., (2021).
Khanam, Z., McDonald-Maier, K. and Ehsan, S., (2021). Near-Optimal Coverage Path Planning of Distributed Regions for Aerial Robots with Energy Constraint
Khanam, Z., Saha, S., Ognibene, D., McDonald-Maier, K. and Ehsan, S., (2021). An Offline-Online Strategy for Goal-Oriented Coverage Path Planning using A Priori Information
Aslam, B., Saha, S., Khanam, Z., Zhai, X., Ehsan, S., Stolkin, R. and McDonald-Maier, K., (2020).
Wachter, EW., Kasap, S., Zhai, X., Ehsan, S. and McDonald-Maier, K., (2020).
Wachter, E., Kasap, S., Zhai, X., Ehsan, S. and McDonald-Maier, K., (2020).
Lu, Y., Zhai, X., Saha, S., Ehsan, S. and McDonald-Maier, K., (2020).
Kasap, S., W盲chter, EW., Zhai, X., Ehsan, S. and McDonald-Maier, K., (2020).
Ferrarini, B., Ehsan, S., Bartoli, A., Leonardis, A. and McDonald-Maier, KD., (2019).
Ferrarini, B., Waheed, M., Waheed, S., Ehsan, S., Milford, M. and McDonald-Maier, KD., (2019).
Khanam, Z., Saha, S., Aslam, B., Zhai, X., Ehsan, S., Cazzaniga, C., Frost, C., Stolkin, R. and McDonald-Maier, K., (2019).
Kalliatakis, G., Sticlaru, A., Stamatiadis, G., Ehsan, S., Leonardis, A., Gall, J. and McDonald-Maier, K., (2018).
Dey, S., Kalliatakis, G., Saha, S., Singh, AK., Ehsan, S. and McDonald-Maier, K., (2018).
Villarreal Guerra, JC., Khanam, Z., Ehsan, S., Stolkin, R. and McDonald-Maier, K., (2018).
Saha, S., Ehsan, S., Stoica, A., Stolkin, R. and McDonald-Maier, K., (2018).
Zaffar, M., Ehsan, S., Stolkin, R. and Maier, KM., (2018).
Kalliatakis, G., Ehsan, S., Fasli, M., Leonardis, A., Gall, J. and McDonald-Maier, KD., (2017).
Kalliatakis, G., Stamatiadis, G., Ehsan, S., Leonardis, A., Gall, J., Sticlaru, A. and McDonald-Maier, KD., (2017).
Bin Nazar, H., Moetesum, M., Ehsan, S., Siddiqi, I., Khurshid, K., Vincent, N. and McDonald-Maier, KD., (2017).
Ferrarini, B., Ehsan, S., Rehman, NU., Leonardis, A. and McDonald-Maier, KD., (2016).
Minhas, S., Hern谩ndez-Sabat茅, A., Ehsan, S., D铆az-Chito, K., Leonardis, A., L贸pez, AM. and McDonald-Maier, K., (2016).
ur Rehman, N., Naveed, K., Ehsan, S. and McDonald-Maier, K., (2016).
Ehsan, S., Clark, AF., Ferrarini, B., Rehman, NU. and McDonald-Maier, KD., (2015).
ur Rehman, N., Khan, MM., Sohaib, I., Jehanzaib, M., Ehsan, S. and McDonald-Maier, KD., (2015).
Ferrarini, B., Ehsan, S., Rehman, NU. and McDonald-Maier, KD., (2015).
Ehsan, S. and McDonald-Maier, K., (2014).
Zhai, X., Appiah, K., Ehsan, S., Cheung, WM., Howells, G., Hu, H., Gu, D. and McDonald-Maier, K., (2014).
Ehsan, S., Clark, AF., Cheung, WM., Bais, AM., Menzat, BI., Kanwal, N. and McDonald-Maier, K., (2014).
Appiah, K., Zhai, X., Ehsan, S., Cheung, WM., Hu, H., Gu, D., McDonald-Maier, K. and Howells, G., (2013).
Zhai, X., Appiah, K., Ehsan, S., Cheung, WM., Hu, H., Gu, D., McDonald-Maier, K. and Howells, G., (2013).
Zhai, X., Appiah, K., Ehsan, S., Hu, H., Gu, D., McDonald-Maier, K., Cheung, WM. and Howells, G., (2013).
Ehsan, S., Kanwal, N., Clark, AF. and McDonald-Maier, K., (2011).
Kanwal, N., Ehsan, S., Bostanci, E. and Clark, AF., (2011).
Kanwal, N., Ehsan, S. and Clark, AF., (2011).
Kanwal, N., Ehsan, S., Bostanci, E. and Clark, AF., (2011). A statistical approach for comparing the performances of corner detectors
Ehsan, S., Clark, AF. and McDonald-Maier, KD., (2010).
Ehsan, S., Kanwal, N., Bostanci, E., Clark, A. and McDonald-Maier, K., (2010).
Ehsan, S. and McDonald-Maier, KD., (2009).
Ehsan, S., Clark, AF. and McDonald-Maier, KD., (2009).
Ehsan, S. and McDonald-Maier, KD., (2009).
Reports and Papers (16)
Waheed, M., Milford, M., McDonald-Maier, K. and Ehsan, S., (2022). SwitchHit: A Probabilistic, Complementarity-Based Switching System for Improved Visual Place Recognition in Changing Environments
Ferrarini, B., Milford, M., McDonald-Maier, KD. and Ehsan, S., (2022). Highly-Efficient Binary Neural Networks for Visual Place Recognition
Waheed, M., Milford, M., McDonald-Maier, KD. and Ehsan, S., (2021). Improving Visual Place Recognition Performance by Maximising Complementarity
Zaffar, M., Garg, S., Milford, M., Kooij, J., Flynn, D., McDonald-Maier, K. and Ehsan, S., (2021). VPR-Bench: An Open-Source Visual Place Recognition Evaluation Framework with Quantifiable Viewpoint and Appearance Change
Power, R., Zaffar, M., Ferrarini, B., Milford, M., McDonald-Maier, K. and Ehsan, S., (2021). A Benchmark Comparison of Visual Place Recognition Techniques for Resource-Constrained Embedded Platforms
Tomit膬, M-A., Zaffar, M., Milford, M., McDonald-Maier, K. and Ehsan, S., (2021). Sequence-Based Filtering for Visual Route-Based Navigation: Analysing the Benefits, Trade-offs and Design Choices
Tomita, M-A., Zaffar, M., Milford, M., McDonald-Maier, KD. and Ehsan, S., (2021). Sequence-Based Filtering for Visual Route-Based Navigation: Analysing the Benefits, Trade-offs and Design Choices.
Smith, WHB., Milford, M., McDonald-Maier, KD. and Ehsan, S., (2021). Scene Retrieval for Contextual Visual Mapping
Tomit膬, M-A., Zaffar, M., Milford, M., McDonald-Maier, K. and Ehsan, S., (2020). ConvSequential-SLAM: A Sequence-based, Training-less Visual Place Recognition Technique for Changing Environments
Zaffar, M., Khaliq, A., Ehsan, S., Milford, M. and McDonald-Maier, K., (2019).
Zaffar, M., Khaliq, A., Ehsan, S., Milford, M., Alexis, K. and McDonald-Maier, K., (2019).
Khaliq, A., Ehsan, S., Milford, M. and McDonald-Maier, K., (2019).
Kalliatakis, G., Ehsan, S., Fasli, M. and McDonald-Maier, KD., (2019).
Kalliatakis, G., Ehsan, S., Fasli, M. and McDonald-Maier, K., (2019).
Zaffar, M., Ehsan, S., Milford, M. and McDonald-Maier, K., (2019).
Kalliatakis, G., Ehsan, S. and McDonald-Maier, KD., (2017).
Grants and funding
2021
RoboK KTP Resubmission
Innovate UK (formerly Technology Strategy Board)
2019
RICE: Visual Place Recognition for Robotics in Extreme Environments
Engineering and Physical Sciences Research Council
RICE: Visual Place Recognition for Robotics in Extreme Environments
Engineering and Physical Sciences Research Council
2018
National Centre for Nuclear Robotics (NCNR)
Engineering and Physical Sciences Research Council
National Centre for Nuclear Robotics (NCNR)
Engineering and Physical Sciences Research Council
2016
Robust remote sensing for multi-modal characterisation in nuclear and other extreme environments.
Engineering & Physical Sciences Res.Council
Robust remote sensing for multi-modal characterisation in nuclear and other extreme environments.
Engineering & Physical Sciences Res.Council
2015
Human Rights and Information Technology in the Era of Big Data
Economic & Social Research Council
2012
COALAS
INTERREG IVA
RoBoSAS
Engineering & Physical Sciences Res.Council
2010
Adaptive Development Support (ADS-SoC)
Engineering & Physical Sciences Res.Council
