Publications

Journal articles, conference papers, and other publications

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Submitted Papers
"Human Activity Recognition at Kilometer Range using Single-Photon LiDAR"
S. Plosz, R. Tobin, A. McCarthy, E. Wade, S. Scholes, P. Soan, A. Halimi, G. S. Buller and J. Leach
Submitted
International Journal Papers
2026
"DTU-Net: A Multi-Scale Dilated Transformer Network for Nonlinear Hyperspectral Unmixing"
C. Wang, J. Gao, F. Zhu, A. Halimi, C. Richard
IEEE Trans. Geoscience and Remote Sensing, vol. 64, pp. 1-17, 2026
2025
"Bayesian Multifractal Image Segmentation"
K. M. Leon-Lopez, A. Halimi, J.-Y. Tourneret, and H. Wendt
IEEE Trans. Image Processing, vol. 34, pp. 8500-8510, 2025
"Graph Attention-Driven Bayesian Deep Unrolling for Dual-Peak Single-Photon Lidar Imaging"
K. Choi, J. Koo, S. McLaughlin, A. Halimi
IEEE Trans. Computational Imaging, vol. 11, pp. 1494-1504, 2025
"A multiscale Bayesian approach to quantification and denoising of energy-dispersive x-ray data"
P. Torruella, A. Halimi, L. Tovaglieri, C. Lichtensteiger, D. T. L. Alexander, C. Hébert
Machine Learning: Science and Technology, 2025
"Super resolution depth imaging via processing of compact single-photon histogram parameters"
L. Wilson, A. Ruget, A. Halimi, B. Hearn, J. Leach
Optics Express, 2025
"A Plug-and-Play Algorithm for 3D Video Super-Resolution of Single-Photon LiDAR data"
A. Ruget, L. Wilson, J. Leach, R. Tobin, A. McCarthy, G. S. Buller, S. McLaughlin, A. Halimi
Optics Express, 2025
"Review of state-of-the-art surface defect detection on wind turbine blades through aerial imagery: Challenges and recommendations"
I. Gohar, A. Halimi, W. K. Yew and J. See
Engineering Applications of AI, 2025
2023
"3D Target Detection and Spectral Classification for Single-photon LiDAR Data"
A. Belmekki, J. Leach, R. Tobin, G.S. Buller, S. McLaughlin, A. Halimi
Optics Express, 2023
"Slice-Aided Defect Detection in Ultra High-Resolution Wind Turbine Blade Images"
I. Gohar, A. Halimi, J. See, W. K. Yew, C. Yang
Machines, 2023
"Real-Time Reconstruction of 3D Videos from Single-Photon LiDaR Data in the Presence of Obscurants"
S. Plosz, A. Maccarone, S. McLaughlin, G. S. Buller, A. Halimi
IEEE Trans. Computational Imaging, vol. 9, pp. 106-119, Feb. 2023
2022
"Pixels2Pose: Super-Resolution Time-of-Flight Imaging for 3D Pose Estimation"
A. Ruget, M. Tyler, G. Mora-Martín, S. Scholes, F. Zhu, I. Gyongy, B. Hearn, S. McLaughlin, A. Halimi, J. Leach
Science Advances, 2022
"A Bayesian Based Deep Unrolling Algorithm for Single-Photon Lidar Systems"
J. Koo, A. Halimi, S. McLaughlin
IEEE-JSTSP, 2022
"Fast Task-Based Adaptive Sampling For 3D Single-Photon Multispectral LiDAR Data"
M. A. A. Belmekki, R. Tobin, G. S. Buller, S. McLaughlin, A. Halimi
IEEE Trans. Computational Imaging, vol. 8, pp. 174-187, Feb. 2022
2021
"Robust and Guided Bayesian Reconstruction of Single-Photon 3D Lidar Data: Application to Multispectral and Underwater Imaging"
A. Halimi, A. Maccarone, R. Lamb, G. Buller, S. McLaughlin
IEEE Trans. Computational Imaging, vol. 7, pp. 961-974, Sept. 2021
"High-speed object detection with a single-photon time-of-flight image sensor"
G. Mora-Martin, A. Turpin, A. Ruget, A. Halimi, R. Henderson, J. Leach, I. Gyongy
Optics Express, 2021
"Multivariate semi-blind deconvolution of fMRI time series"
H. Cherkaoui, T. Moreau, A. Halimi, C. Leroy, P. Ciuciu
NeuroImage, 2021
"Robust real-time 3D imaging of moving scenes through atmospheric obscurants using single-photon LiDAR"
R. Tobin, A. Halimi, A. McCarthy, P. Soan, G. Buller
Scientific Reports—Nature, 2021
"Robust super-resolution depth imaging via a multi-feature fusion deep network"
A. Ruget, S. McLaughlin, R. K. Henderson, I. Gyongy, A. Halimi, J. Leach
Optics Express, 2021
2020
"High-speed 3D sensing via hybrid-mode imaging and guided upsampling"
I. Gyongy, S. W. Hutchings, A. Halimi, M. Tyler, S. Chan, F. Zhu, S. McLaughlin, R. K. Henderson, and J. Leach
Optica, Vol. 7, Issue 10, Sept. 2020
"Full Waveform LiDAR for Adverse Weather Conditions"
A. Wallace, A. Halimi, G.S. Buller
IEEE Trans. Vehicular Technology, Vol. 69, Issue 7, July 2020
"3D LIDAR imaging using Ge-on-Si single photon avalanche diode detectors"
K. Kuzmenko, P. Vines, A. Halimi, R. J. Collins, A. Maccarone, A. McCarthy, Z. M. Greener, J. Kirdoda, D. C. Dumas, L. F. LLin, M. Mirza, R. Willar, D. Paul, and G. Buller
Optics Express, Vol. 22, Issue 2, Jan. 2020
2019
"Learning Non-Local Spatial Correlations To Restore Sparse 3D Single-Photon Data"
S. Chen, A. Halimi, X. Ren, A. McCarthy, X. Su, S. McLaughlin, G.S. Buller
IEEE Trans. Image Processing, Vol. 29, Dec. 2019
"Restoration of Multidimensional Sparse Single-Photon 3D-LiDAR Images"
A. Halimi, R. Tobin, A. McCarthy, J. Bioucas-Dias, S. McLaughlin, G.S. Buller
IEEE Trans. Computational Imaging, Vol. 6, July 2019
"Long-range depth imaging using a single-photon detector array and non-local data fusion"
S. Chen, A. Halimi, F. Zhu, I. Gyongy, R. Henderson, R. Bowman, S. McLaughlin, G. S. Buller and J. Leach
Scientific Reports, vol. 9, no. 8075, 2019
"Three-dimensional single-photon imaging through obscurants"
R. Tobin, A. Halimi, A. McCarthy, M. Laurenzis, F. Christnacher, G. S. Buller
Optics Express, Vol. 27, Issue 4, pp. 4590-4611, 2019
2018
"High-resolution depth profiling using a range-gated Si CMOS SPAD quanta image sensor"
X. Ren, P. Connolly, A. Halimi, Y. Altmann, S. McLaughlin, I. Gyongy, R. K. Henderson, G. S. Buller
Optics Express, vol. 26, no. 5, 2018
2017
"Long-range depth profiling of camouflaged targets using single-photon detection"
R. Tobin, A. Halimi, A. McCarthy, X. Ren, K. McEwan, S. McLaughlin, G. S. Buller
Optical Engineering, vol. 57, no. 3, Dec. 2017
"Correntropy Maximization via ADMM — Application to Robust Hyperspectral Unmixing"
F. Zhu, A. Halimi, P. Honeine, B. Chen, and N. Zheng
IEEE Trans. Geoscience and Remote Sensing, vol. 55, no. 9, Sept. 2017
"Single-photon three-dimensional imaging at up to 10 kilometers range"
A. Pawlikowska, A. Halimi, R. A. Lamb, and G. S. Buller
Optics Express, vol. 25, no. 10, May 2017
"Object Depth Profile and Reflectivity Restoration from Sparse Single-Photon Data Acquired in Underwater Environments"
A. Halimi, A. Maccarone, A. McCarthy, S. McLaughlin and G. S. Buller
IEEE Trans. Computational Imaging, vol. 3, no. 3, Sept. 2017
"Fast Hyperspectral Unmixing in Presence of Nonlinearity or Mismodelling Effects"
A. Halimi, J. M. Bioucas-Dias, N. Dobigeon, G. S. Buller and S. McLaughlin
IEEE Trans. Computational Imaging, vol. 3, no. 2, June 2017
"Denoising Smooth Signals Using a Bayesian Approach: Application to Altimetry"
A. Halimi, G. Buller, S. McLaughlin, and P. Honeine
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol. 10, no. 4, April 2017
2016
"Hyperspectral Unmixing in Presence of Endmember Variability, Nonlinearity or Mismodelling Effects"
A. Halimi, P. Honeine and J. Bioucas-Dias
IEEE Trans. Image Processing, vol. 25, no. 10, Oct. 2016
"Estimating the Intrinsic Dimension of Hyperspectral Images Using a Noise Whitened Eigen-Gap Approach"
A. Halimi, P. Honeine, M. Kharouf, C. Richard and J.-Y. Tourneret
IEEE Trans. Geoscience and Remote Sensing, vol. 54, no. 7, July 2016
2015
"Bayesian Estimation of Smooth Altimetric Parameters: Application to Conventional and Delay/Doppler Altimetry"
A. Halimi, C. Mailhes, J.-Y. Tourneret and H. Snoussi
IEEE Trans. Geoscience and Remote Sensing, vol. 54, no. 4, 2015
"Unsupervised Unmixing of Hyperspectral Images Accounting for Endmember Variability"
A. Halimi, N. Dobigeon and J.-Y. Tourneret
IEEE Trans. Image Processing, vol. 24, no. 12, pp. 4904-4917, 2015
"Including Antenna Mispointing in a Semi-Analytical Model for Delay/Doppler Altimetry"
A. Halimi, C. Mailhes, J.-Y. Tourneret, F. Boy and T. Moreau
IEEE Trans. Geoscience and Remote Sensing, vol. 53, no. 2, pp. 598-608, Feb. 2015
2014
"A semi-analytical model for Doppler altimetry and its estimation algorithm"
A. Halimi, C. Mailhes, J.-Y. Tourneret, P. Thibaut and F. Boy
IEEE Trans. Geoscience and Remote Sensing, vol. 52, no. 7, pp. 4248-4258, July 2014
2013
"Parameter Estimation for Peaky Altimetric Waveforms"
A. Halimi, C. Mailhes, J.-Y. Tourneret, P. Thibaut and F. Boy
IEEE Trans. Geoscience and Remote Sensing, vol. 51, no. 3, pp. 1568-1577, March 2013
2012
"Supervised nonlinear spectral unmixing using a post-nonlinear mixing model for hyperspectral imagery"
Y. Altmann, A. Halimi, N. Dobigeon and J.-Y. Tourneret
IEEE Trans. Image Processing, vol. 21, no. 6, pp. 3017-3025, June 2012
2011
"Nonlinear unmixing of hyperspectral images using a generalized bilinear model"
A. Halimi, Y. Altmann, N. Dobigeon and J.-Y. Tourneret
IEEE Trans. Geoscience and Remote Sensing, vol. 49, no. 11, pp. 4153-4162, Nov. 2011
International Conference Papers
2025
"Addressing Class Scarcity and Imbalance for Few-Shot Detection of Wind Turbine Blade Surface Defects" Best Paper Award
I. Gohar, A. Halimi, W. K. Yew and J. See
ISPACS, Indonesia, Nov. 2025
"Bayesian unsupervised multifractal image segmentation using a multiscale graph label prior"
K. M. Leon-Lopez, A. Halimi, J.-Y. Tourneret, and H. Wendt
EUSIPCO, Palermo, 2025
"Conditional Diffusion for Single-Photon LiDAR Depth Super-Resolution"
P. Deka, S. McLaughlin, A. Halimi
IEEE-SSP, Edinburgh, 2025
"A Bayesian Approach for 3D Guided Video Super-resolution of Single-Photon LiDAR data"
A. Halimi, S. McLaughlin
IEEE-SSP, Edinburgh, 2025
2024
"Bayesian Deep Unfolding with Graph Attention for Dual-Peak Single-Photon Lidar Imaging"
J. Koo, A. Halimi, S. McLaughlin
EUSIPCO, Lyon, 2024
"Optimizing Wind Turbine Surface Defect Detection: A Rotated Bounding Box Approach"
I. Gohar, A. Halimi, W. K. Yew and J. See
EUSIPCO, Lyon, 2024
"Fusion of Magnetic Resonance and Ultrasound Images Using Guided Filtering: Application to Endometriosis Surgery"
Y. El Bennioui, A. Halimi, A. Basarab, and J.-Y. Tourneret
EUSIPCO, Lyon, 2024
2023
"Plug-and-Play for Joint Deblurring and Guided Super-Resolution of Single-Photon 3D Lidar data"
A. Halimi, S. McLaughlin
EUSIPCO, Finland, Sept. 2023
"Bayesian Based Unrolling for Reconstruction and Super-resolution of Single-Photon Lidar Systems"
A. Halimi, J. Koo, S. McLaughlin
International Symposium on Computational Sensing (ISCS), Luxembourg, June 2023
"Automatic Defect Detection in Wind Turbine Blade Images: Model Benchmarks and Re-Annotations"
I. Gohar, J. See, A. Halimi, W. K. Yew
IEEE International Conference on Multimedia and Expo Workshops (ICMEW), pp. 290-295, 2023
"Fast Multiscale 3D Reconstruction Using Single-Photon Lidar Data"
S. Plosz, I. Gyongy, J. Leach, S. McLaughlin, G. S. Buller, A. Halimi
ICASSP, Greece, May 2023
2022
"A Bayesian Based Unrolling Approach to Single-Photon Lidar Imaging through Obscurants"
J. Koo, A. Halimi, A. Maccarone, G. S. Buller, S. McLaughlin
EUSIPCO, Serbia, August 2022
"Robust Bayesian Reconstruction of Multispectral Single-Photon 3D Lidar Data with Non-Uniform Background"
A. Halimi, J. Koo, R. Lamb, G. S. Buller, S. McLaughlin
ICASSP, Singapore, May 2022
2021
"Fast classification and depth estimation of multispectral single-photon Lidar data"
M. A. Belmekki, S. McLaughlin, A. Halimi
IEEE SSPD, Edinburgh, UK, Sept. 2021
"Robust and guided super-resolution for single-photon depth imaging via a deep network"
A. Ruget, S. McLaughlin, R. K. Henderson, I. Gyongy, A. Halimi, J. Leach
EUSIPCO, Ireland, August 2021
"High-speed vision with a 3D-stacked SPAD image sensor"
I. Gyongy, G. Mora-Martín, A. Turpin, A. Ruget, A. Halimi, R. Henderson, J. Leach
Advanced Photon Counting Techniques XV, Online, 2021
"High-speed object detection using SPAD sensors"
G. Mora-Martín, A. Turpin, A. Ruget, A. Halimi, R. Henderson, J. Leach, I. Gyongy
Photonic Instrumentation Engineering VIII, Online, 2021
2020
"Fast Surface Detection Using Single-Photon Detection Events"
A. Halimi, A. Wallace, G.S. Buller, and S. McLaughlin
IEEE SSPD, Online, Sept. 2020
2019
"Fast Adaptive Scene Sampling for Single-Photon 3D LiDAR Images"
A. Halimi, P. Ciuciu, S. McLaughlin, G. Buller
IEEE CAMSAP, Guadeloupe, France, Dec. 2019
"fMRI BOLD signal decomposition via a multivariate low-rank model"
H. Cherkaoui, T. Moreau, A. Halimi, and P. Ciuciu
EUSIPCO, A Coruña, Spain, 2019
"Non-local restoration of Sparse 3D Single-Photon Data"
S. Chen, A. Halimi, X. Ren, A. McCarthy, G. S. Buller, and S. McLaughlin
EUSIPCO, A Coruña, Spain, 2019
"Joint Reconstruction of Multitemporal or Multispectral Single-Photon 3D LiDAR Images"
A. Halimi, R. Tobin, A. McCarthy, J. Bioucas-Dias, S. McLaughlin, and G.S. Buller
IEEE SSPD, Brighton, UK, May 2019
"Sparsity Based Blind Deconvolution of Neural Activation Signal in FMRI"
H. Cherkaoui, T. Moreau, A. Halimi, and P. Ciuciu
IEEE ICASSP, Brighton, UK, May 2019
2018
"Restoration of Multilayered Single-Photon 3D LiDAR Images"
A. Halimi, X. Ren, A. McCarthy, J. Bioucas-Dias, S. McLaughlin, and G. S. Buller
IEEE SAM, Sheffield, UK, July 2018
2017
"Restoration of Depth and Intensity Images using a Graph Laplacian Regularization"
A. Halimi, P. Connolly, X. Ren, Y. Altmann, I. Gyongy, R. K. Henderson, S. McLaughlin and G. S Buller
IEEE CAMSAP, Curaçao, Dutch Antilles, Dec. 2017
"Restoration of Multilayered Single-Photon 3D LiDAR Images"
A. Halimi, R. Tobin, A. McCarthy, S. McLaughlin, and G. S. Buller
EUSIPCO, Kos Island, Greece, Sept. 2017
"Fast Hyperspectral Unmixing in Presence of Sparse Multiple Scattering Nonlinearities"
A. Halimi, J. Bioucas-Dias, N. Dobigeon, G. S. Buller and S. McLaughlin
IEEE ICASSP, New Orleans, U.S.A., March 2017
2016
"Robust Unmixing Algorithms for Hyperspectral Imagery"
A. Halimi, Y. Altmann, G. Buller, S. McLaughlin, W. Oxford, D. Clarke and J. Piper
Sensor Signal Processing for Defence (SSPD), Edinburgh, UK, Sept. 2016
"Filtering Smooth Altimetric Signals Using a Bayesian Algorithm"
A. Halimi, G. Buller, S. McLaughlin, and P. Honeine
EUSIPCO, Budapest, Hungary, Sept. 2016
"Restoration of Intensity and Depth images Constructed Using Sparse Single-Photon Data"
A. Halimi, Y. Altmann, A. McCarthy, X. Ren, R. Tobin, G. Buller, and S. McLaughlin
EUSIPCO, Budapest, Hungary, Sept. 2016
"Depth imaging in highly scattering underwater environments using time-correlated single-photon counting" Best Student Presentation
A. Maccarone, A. McCarthy, A. Halimi, R. Tobin, A. M. Wallace, Y. Petillot, S. McLaughlin, and G. Buller
Proc. SPIE 9992, Edinburgh, UK, Sept. 2016
"Robust hyperspectral unmixing accounting for residual components"
A. Halimi, P. Honeine, J. Bioucas-Dias
IEEE Workshop on Statistical Signal Processing (SSP), June 2016 (Invited paper)
"ADMM for Maximum Correntropy Criterion"
F. Zhu, A. Halimi, P. Honeine, B. Chen, N. Zheng
Int. Joint Conf. on Neural Networks (IJCNN), July 2016
2015
"Hyperspectral unmixing Accounting for Spatial Correlations and Endmember Variability"
A. Halimi, N. Dobigeon, J.-Y. Tourneret and P. Honeine
IEEE GRSS Workshop (Whispers), June 2015
"Unmixing Multitemporal Hyperspectral images Accounting for Endmember Variability"
A. Halimi, N. Dobigeon, J.-Y. Tourneret, S. McLaughlin and P. Honeine
EUSIPCO, Nice, France, Sept. 2015, pp. 1656-1660
"A new Bayesian unmixing algorithm for hyperspectral images mitigating endmember variability"
A. Halimi, N. Dobigeon, J.-Y. Tourneret and P. Honeine
IEEE ICASSP, Brisbane, Australia, April 2015, pp. 2469-2473
"Nonlinear regression using smooth Bayesian estimation"
A. Halimi, C. Mailhes and J.-Y. Tourneret
IEEE ICASSP, Brisbane, Australia, April 2015, pp. 2634-2638
2014
"Exploiting time and frequency information for delay/Doppler altimetry"
A. Halimi, C. Mailhes, J.-Y. Tourneret, T. Moreau and F. Boy
EUSIPCO, Lisbon, Portugal, Sept. 2014
"A Generalized Semi-Analytical model for delay/Doppler altimetry"
A. Halimi, C. Mailhes, J.-Y. Tourneret, F. Boy and T. Moreau
IEEE IGARSS, Québec, Canada, July 2014
2013
"Cramér-Rao bounds and estimation algorithms for Delay/Doppler and conventional altimetry"
A. Halimi, C. Mailhes, J.-Y. Tourneret
EUSIPCO, Marrakech, Morocco, Sept. 2013, pp. 1-5
2011
"Supervised nonlinear spectral unmixing using a polynomial post nonlinear model for hyperspectral imagery"
Y. Altmann, A. Halimi, N. Dobigeon and J.-Y. Tourneret
IEEE ICASSP, Prague, Czech Republic, May 2011, pp. 1009-1012
"Nonlinear unmixing of hyperspectral images using a generalized bilinear model"
A. Halimi, Y. Altmann, N. Dobigeon and J.-Y. Tourneret
IEEE Workshop on Statistical Signal Processing (SSP), Nice, France, June 2011, pp. 413-416
"Unmixing hyperspectral images using the generalized bilinear model"
A. Halimi, Y. Altmann, N. Dobigeon, and J.-Y. Tourneret
IEEE IGARSS, Vancouver, Canada, July 2011, pp. 1886-1889
"A new model for Peaky Altimetric Waveforms"
A. Halimi, C. Mailhes, J.-Y. Tourneret and P. Thibaut
IEEE IGARSS, Vancouver, Canada, July 2011, pp. 2825-2828
"A polynomial post nonlinear model for hyperspectral image unmixing"
Y. Altmann, A. Halimi, N. Dobigeon and J.-Y. Tourneret
IEEE IGARSS, Vancouver, Canada, July 2011, pp. 1882-1885
National Conference Papers
2013
"Modèle semi-analytique pour l’altimétrie SAR/Doppler sur océan"
A. Halimi, C. Mailhes, J.-Y. Tourneret, F. Boy and T. Moreau
Actes du XXIVième Colloque GRETSI, Brest, France, Sept. 2013 (in French)
2011
"Modélisation des signaux altimétriques en présence de pics"
A. Halimi, C. Mailhes, J.-Y. Tourneret and P. Thibaut
Actes du XXIIIième Colloque GRETSI, Bordeaux, France, Sept. 2011 (in French)
Conferences without Published Proceedings
2024
"Real-time underwater target detection and 3D video reconstruction for single-photon LiDAR imaging"
S. Plosz, A. Maccarone, S. McLaughlin, G. S. Buller, A. Halimi
SPIE Emerging Imaging and Sensing Technologies for Security and Defence, 2024
"Guided super-resolution of single-photon 3D LiDAR data: application to micro-scanning and 3D video upsampling"
A. Halimi, E. Wade, A. Ruget, R. Tobin, A. McCarthy, P. J. Soan, G. S. Buller
SPIE Emerging Imaging and Sensing Technologies for Security and Defence, 2024
2013
"A generalized semi-analytical model for delay/Doppler altimetry and its estimation algorithms"
A. Halimi, C. Mailhes, J.-Y. Tourneret, P. Thibaut, T. Moreau, F. Boy and N. Picot
Ocean Surface Topography Science Team Meeting (OSTST), Boulder, CO, USA, Oct. 2013
2012
"An analytical model for Doppler altimetry and its estimation algorithm"
A. Halimi, C. Mailhes, J.-Y. Tourneret, F. Boy, N. Picot and P. Thibaut
Ocean Surface Topography Science Team Meeting (OSTST), Venice, Italy, Sept. 2012
"CryoSat Processing Prototype, LRM and SAR Processing on CNES Side and a Comparison to DUACS SLA"
F. Boy, J.-D. Desjonquères, A. Halimi, P. Thibaut, T. Moreau and N. Picot
Ocean Surface Topography Science Team Meeting (OSTST), Venice, Italy, Sept. 2012
2011
"SAR Data over ocean, Processing strategy and continuity with LRM data"
P. Thibaut, T. Moreau, L. Amarouche, A. Halimi, C. Mailhes, J.-Y. Tourneret, F. Boy and N. Picot
Ocean Surface Topography Science Team Meeting (OSTST), San Diego, USA, Oct. 2011
Thesis
2013
"From conventional to delay/Doppler altimetry"
A. Halimi
Ph.D. Thesis, INP Toulouse, October 2013