Research Fellow · Computer Vision & Deep Learning
Alzayat Saleh
James Cook University, Australia · PhD (2023) and MPhil (2020)
I build computer vision systems that work outside the lab: in murky water, in bright paddocks and in clinical scans. Much of my work asks how to train reliable models when labelled data is scarce, using self-supervised, semi-supervised and weakly supervised learning, and how to make those models small and fast enough to deploy on real equipment.
Research
Publications
26 papers, including 20 journal articles. Full record on Google Scholar.
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UNIQAT: An open-source toolkit for reproducible image quality assessment in marine surveys
Methods in Ecology and Evolution
@article{saleh2026uniqat, title={UNIQAT: An open-source toolkit for reproducible image quality assessment in marine surveys}, author={Saleh, Alzayat and Chennu, Arjun}, journal={Methods in Ecology and Evolution}, year={2026}, publisher={Wiley}, doi={10.1111/2041-210X.70431} } -
Lessons from Building a Semantic 3D Gaussian Splatting Pipeline for Multi-Year Coral Reef Monitoring
RSS 2026 Workshop: Mapping the Reef: Underwater 3D Reconstruction for Coral EcosystemsConference
Best Application Award
@inproceedings{saleh2026lessons, title={Lessons from Building a Semantic 3D Gaussian Splatting Pipeline for Multi-Year Coral Reef Monitoring}, author={Saleh, Alzayat and Han, Kang and Ferrari, Renata}, booktitle={RSS 2026 Workshop: Mapping the Reef: Underwater 3D Reconstruction for Coral Ecosystems}, year={2026}, url={https://alejandrofontan.github.io/Mapping-the-Reef-RSS26/assets/proceedings/2.pdf}, award={Best Application Award} } -
Weed Detection in Challenging Field Conditions: A Semi-Supervised Framework for Overcoming Shadow Bias and Data Scarcity
Computers, vol. 15, pp. 171
@article{saleh2025weed, title={Weed Detection in Challenging Field Conditions: A Semi-Supervised Framework for Overcoming Shadow Bias and Data Scarcity}, author={Saleh, Alzayat and Hatano, Shunsuke and Rahimi Azghadi, Mostafa}, journal={Computers}, volume={15}, number={3}, pages={171}, year={2026}, publisher={MDPI} } -
Depth-Resolved Coral Reef Thermal Fields from Satellite SST and Sparse In-Situ Loggers Using Physics-Informed Neural Networks
PreprintPreprint
@misc{saleh2026depth, title={Depth-Resolved Coral Reef Thermal Fields from Satellite SST and Sparse In-Situ Loggers Using Physics-Informed Neural Networks}, author={Saleh, Alzayat and Rahimi Azghadi, Mostafa}, year={2026}, eprint={2604.13131}, archivePrefix={arXiv}, primaryClass={cs.LG}, url={https://arxiv.org/abs/2604.13131} } -
Linking fish activity and turbidity through visual and sensor data fusion and deep learning
Marine Pollution Bulletin, vol. 223, pp. 119070
@article{jahanbakht2026bulletin, title = {Linking fish activity and turbidity through visual and sensor data fusion and deep learning}, journal = {Marine Pollution Bulletin}, volume = {223}, pages = {119070}, year = {2026}, issn = {0025-326X}, doi = {https://doi.org/10.1016/j.marpolbul.2025.119070}, url = {https://doi.org/10.1016/j.marpolbul.2025.119070}, author = {Mohammad Jahanbakht and Andrea Tiernan and Alzayat Saleh and Nichola Stokes and Odette Langham and Mostafa {Rahimi Azghadi} and Nathan J. Waltham}, keywords = {Turbid water monitoring, Fish detection, Turbidity estimation, Deep learning, Image and sensor fusion} } -
Multimodal language models in agriculture: A tutorial and survey
Information Fusion, vol. 129, pp. 104042
@article{haghighat2025multimodal, title = {Multimodal language models in agriculture: A tutorial and survey}, journal = {Information Fusion}, volume = {129}, pages = {104042}, year = {2026}, issn = {1566-2535}, doi = {https://doi.org/10.1016/j.inffus.2025.104042}, url = {https://doi.org/10.1016/j.inffus.2025.104042}, author = {Mohammadreza Haghighat and Alzayat Saleh and Mostafa {Rahimi Azghadi}}, keywords = {Multimodal language models, Agriculture AI, Deep learning, Tutorial, Smart farming, Vision-Language models} } -
Multi-label Instance-level Generalised Visual Grounding in Agriculture
European Conference on Computer Vision, pp. 448–467Conference
@inproceedings{haghighat2026multi, title={Multi-label Instance-level Generalised Visual Grounding in Agriculture}, author={Haghighat, Mohammadreza and Saleh, Alzayat and Rahimi Azghadi, Mostafa}, booktitle={European Conference on Computer Vision}, pages={448--467}, year={2026}, organization={Springer} } -
Artificial intelligence-enabled aquacultural engineering systems: A design-oriented review of sensing, modelling, and deployment architectures
Computers and Electronics in Agriculture, vol. 256, pp. 112353
@article{sankar2025artificial, title={Artificial intelligence-enabled aquacultural engineering systems: A design-oriented review of sensing, modelling, and deployment architectures}, author={Sankar, Vinu and Saleh, Alzayat and Ehrampoosh, Armin and Arbon, Phoebe and Jerry, Dean R and Azghadi, Mostafa Rahimi}, journal={Computers and Electronics in Agriculture}, volume={256}, pages={112353}, year={2026}, publisher={Elsevier} }
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Semi-supervised weed detection for rapid deployment and enhanced efficiency
Computers and Electronics in Agriculture, vol. 236, pp. 110410
@article{saleh2025semi, title={Semi-supervised weed detection for rapid deployment and enhanced efficiency}, author={Saleh, Alzayat and Olsen, Alex and Wood, Jake and Philippa, Bronson and Azghadi, Mostafa Rahimi}, journal={Computers and Electronics in Agriculture}, volume={236}, pages={110410}, year={2025}, publisher={Elsevier}, doi={10.1016/j.compag.2025.110410} } -
Adaptive deep learning framework for robust unsupervised underwater image enhancement
Expert Systems with Applications, vol. 268, pp. 126314
@article{saleh2025adaptive, title={Adaptive deep learning framework for robust unsupervised underwater image enhancement}, author={Saleh, Alzayat and Sheaves, Marcus and Jerry, Dean and Azghadi, Mostafa Rahimi}, journal={Expert Systems with Applications}, volume={268}, pages={126314}, year={2025}, publisher={Pergamon}, doi={10.1016/j.eswa.2024.126314} } -
Overcoming annotation bottlenecks in underwater fish segmentation: a robust self-supervised learning approach
Signal, Image and Video Processing, vol. 19, pp. 1–10
@article{saleh2025overcoming, title={Overcoming annotation bottlenecks in underwater fish segmentation: a robust self-supervised learning approach}, author={Saleh, Alzayat and Sheaves, Marcus and Jerry, Dean and Azghadi, Mostafa Rahimi}, journal={Signal, Image and Video Processing}, volume={19}, number={4}, pages={1--10}, year={2025}, publisher={Springer London}, doi={10.1007/s11760-025-03860-y} } -
FieldNet: Efficient real-time shadow removal for enhanced vision in field robotics
Expert Systems with Applications, vol. 279, pp. 127442
@article{saleh2025fieldnet, title={FieldNet: Efficient real-time shadow removal for enhanced vision in field robotics}, author={Saleh, Alzayat and Olsen, Alex and Wood, Jake and Philippa, Bronson and Azghadi, Mostafa Rahimi}, journal={Expert Systems with Applications}, volume={279}, pages={127442}, year={2025}, publisher={Pergamon}, doi={10.1016/j.eswa.2025.127442} } -
Precision robotic spot-spraying: Reducing herbicide use and enhancing environmental outcomes in sugarcane
Computers and Electronics in Agriculture, vol. 235, pp. 110365
@article{azghadi2025precision, title={Precision robotic spot-spraying: Reducing herbicide use and enhancing environmental outcomes in sugarcane}, author={Azghadi, Mostafa Rahimi and Olsen, Alex and Wood, Jake and Saleh, Alzayat and Calvert, Brendan and Granshaw, Terry and Fillols, Emilie and Philippa, Bronson}, journal={Computers and Electronics in Agriculture}, volume={235}, pages={110365}, year={2025}, publisher={Elsevier}, doi={10.1016/j.compag.2025.110365} }
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Applications of deep learning in fish habitat monitoring: A tutorial and survey
Expert Systems with Applications, vol. 238, pp. 121841
@article{saleh2024applications, title={Applications of deep learning in fish habitat monitoring: A tutorial and survey}, author={Saleh, Alzayat and Sheaves, Marcus and Jerry, Dean and Azghadi, Mostafa Rahimi}, journal={Expert Systems with Applications}, volume={238}, pages={121841}, year={2024}, publisher={Pergamon}, doi={10.1016/j.eswa.2023.121841} } -
Prawn morphometrics and weight estimation from images using deep learning for landmark localization
Aquacultural Engineering, vol. 106, pp. 102391
@article{saleh2024prawn, title={Prawn morphometrics and weight estimation from images using deep learning for landmark localization}, author={Saleh, Alzayat and Hasan, Md Mehedi and Raadsma, Herman W and Khatkar, Mehar S and Jerry, Dean R and Azghadi, Mostafa Rahimi}, journal={Aquacultural Engineering}, volume={106}, pages={102391}, year={2024}, publisher={Elsevier}, doi={10.1016/j.aquaeng.2024.102391} } -
WeedCLR: Weed contrastive learning through visual representations with class-optimized loss in long-tailed datasets
Computers and Electronics in Agriculture, vol. 227, pp. 109526
@article{saleh2024weedclr, title={WeedCLR: Weed contrastive learning through visual representations with class-optimized loss in long-tailed datasets}, author={Saleh, Alzayat and Olsen, Alex and Wood, Jake and Philippa, Bronson and Azghadi, Mostafa Rahimi}, journal={Computers and Electronics in Agriculture}, volume={227}, pages={109526}, year={2024}, publisher={Elsevier}, doi={10.1016/j.compag.2024.109526} } -
How to track and segment fish without human annotations: a self-supervised deep learning approach
Pattern Analysis and Applications, vol. 27, pp. 4
@article{saleh2024track, title={How to track and segment fish without human annotations: a self-supervised deep learning approach}, author={Saleh, Alzayat and Sheaves, Marcus and Jerry, Dean and Rahimi Azghadi, Mostafa}, journal={Pattern Analysis and Applications}, volume={27}, number={1}, pages={4}, year={2024}, publisher={Springer London London}, doi={10.1007/s10044-024-01227-6} } -
Learning from the Giants: A Practical Approach to Underwater Depth and Surface Normals Estimation
arXiv preprint arXiv:2410.02072Preprint
@article{saleh2024learning, title={Learning from the Giants: A Practical Approach to Underwater Depth and Surface Normals Estimation}, author={Saleh, Alzayat and Olsen, Melanie and Senadji, Bouchra and Azghadi, Mostafa Rahimi}, journal={arXiv preprint arXiv:2410.02072}, year={2024}, url={https://arxiv.org/abs/2410.02072} }
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MFLD-net: a lightweight deep learning network for fish morphometry using landmark detection
Aquatic Ecology, vol. 57, pp. 913–931
@article{saleh2023mfld, title={MFLD-net: a lightweight deep learning network for fish morphometry using landmark detection}, author={Saleh, Alzayat and Jones, David and Jerry, Dean and Azghadi, Mostafa Rahimi}, journal={Aquatic Ecology}, volume={57}, number={4}, pages={913--931}, year={2023}, publisher={Springer Netherlands Dordrecht}, doi={10.1007/s10452-023-10044-8} }
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Computer vision and deep learning for fish classification in underwater habitats: A survey
Fish and Fisheries, vol. 23, pp. 977–999
@article{saleh2022computer, title={Computer vision and deep learning for fish classification in underwater habitats: A survey}, author={Saleh, Alzayat and Sheaves, Marcus and Rahimi Azghadi, Mostafa}, journal={Fish and Fisheries}, volume={23}, number={4}, pages={977--999}, year={2022}, publisher={Wiley}, doi={10.1111/faf.12666} }
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Weakly supervised underwater fish segmentation using affinity LCFCN
Scientific reports, vol. 11, pp. 17379
@article{laradji2021weakly, title={Weakly supervised underwater fish segmentation using affinity LCFCN}, author={Laradji, Issam H and Saleh, Alzayat and Rodriguez, Pau and Nowrouzezahrai, Derek and Azghadi, Mostafa Rahimi and Vazquez, David}, journal={Scientific reports}, volume={11}, number={1}, pages={17379}, year={2021}, publisher={Nature Publishing Group UK London}, doi={10.1038/s41598-021-96610-2} } -
A deep learning localization method for measuring abdominal muscle dimensions in ultrasound images
IEEE Journal of Biomedical and Health Informatics, vol. 25, pp. 3865–3873
@article{saleh2021deep, title={A deep learning localization method for measuring abdominal muscle dimensions in ultrasound images}, author={Saleh, Alzayat and Laradji, Issam H and Lammie, Corey and Vazquez, David and Flavell, Carol A and Azghadi, Mostafa Rahimi}, journal={IEEE Journal of Biomedical and Health Informatics}, volume={25}, number={10}, pages={3865--3873}, year={2021}, publisher={IEEE}, doi={10.1109/JBHI.2021.3085524} }
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A realistic fish-habitat dataset to evaluate algorithms for underwater visual analysis
Scientific reports, vol. 10, pp. 14671
@article{saleh2020realistic, title={A realistic fish-habitat dataset to evaluate algorithms for underwater visual analysis}, author={Saleh, Alzayat and Laradji, Issam H and Konovalov, Dmitry A and Bradley, Michael and Vazquez, David and Sheaves, Marcus}, journal={Scientific reports}, volume={10}, number={1}, pages={14671}, year={2020}, publisher={Nature Publishing Group UK London}, doi={10.1038/s41598-020-71639-x} }
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Underwater fish detection with weak multi-domain supervision
2019 international joint conference on neural networks (ijcnn), pp. 1–8Conference
@inproceedings{konovalov2019underwater, title={Underwater fish detection with weak multi-domain supervision}, author={Konovalov, Dmitry A and Saleh, Alzayat and Bradley, Michael and Sankupellay, Mangalam and Marini, Simone and Sheaves, Marcus}, booktitle={2019 international joint conference on neural networks (ijcnn)}, pages={1--8}, year={2019}, organization={IEEE}, doi={10.1109/IJCNN.2019.8851907} } -
Automatic weight estimation of harvested fish from images
2019 Digital image computing: Techniques and applications (DICTA), pp. 1–7Conference
@inproceedings{konovalov2019automatic, title={Automatic weight estimation of harvested fish from images}, author={Konovalov, Dmitry A and Saleh, Alzayat and Efremova, Dina B and Domingos, Jose A and Jerry, Dean R}, booktitle={2019 Digital image computing: Techniques and applications (DICTA)}, pages={1--7}, year={2019}, organization={IEEE}, doi={10.1109/DICTA47822.2019.8945971} }
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Estimating mass of harvested Asian seabass Lates calcarifer from images
World Journal of Engineering and Technology, vol. 6, pp. 15
@article{konovalov2018estimating, title={Estimating mass of harvested Asian seabass Lates calcarifer from images}, author={Konovalov, Dmitry A and Saleh, Alzayat and Efremova, Dina B and Domingos, Jose A and Jerry, Dean R}, journal={World Journal of Engineering and Technology}, volume={6}, number={03}, pages={15}, year={2018}, publisher={Scientific Research Publishing}, doi={10.4236/wjet.2018.63B003} }
Contact
I am open to collaborations in computer vision for ecology, aquaculture, agriculture and robotics.