Bayesian Unsupervised Multifractal Image Segmentation using a Multiscale Graph Label Prior

K. León, J.-Y. Tourneret, A. Halimi, H. Wendt

EUSIPCO, 2025

This work presents a Bayesian multifractal  segmentation method that segments multifractal textures in regions with different multifractal properties. 

A Multiscale Anomaly Detection Framework for AIS Trajectories via Heat Graph Laplacian Diffusion

K. León, S. Fabre, F. Manzoni, L. Mirambell, J.-Y. Tourneret

EUSIPCO, 2024

This framework considers a diffusion kernel at multiple scales of the graph Laplacian matrix to detect abnormal trajectories embedded in the graph.

Anomaly Detection and Classification in Multispectral Time Series Based on Hidden Markov Models

K. León, F. Mouret, H. Arguello, J.-Y. Tourneret

IEEE TGRS, 2021

To detect, localize, and classify anomalies exploiting the temporal information contained in a given season at a parcel level using hidden Markov models (HMMs). 

Online Tensor Sparsifying Transform based on Temporal Superpixels from Compressive Spectral Video Measurements

K. León, H. Arguello

IEEE TIP, 2020

To online sparsifying and recovering the spatial-spectral-temporal information of a spectral video performed on several temporal superpixels.

Higher-Order Tensor Sparse Representation for Video-Rate Coded Aperture Snapshot Spectral Image Reconstruction

K. León, E. Vargas, F. Rojas, H. Arguello

CAMSAP, 2019

Tensor-based recovery for spectral video acquired using CASSI.

Seismic Source Reconstruction in an Orthogonal Geometry based on Local and Non-local Information in the Time Slice Domain

O. Villareal, K. León, D. Espinosa, W. Agudelo, H. Arguello

Journal of Applied Geophysics, 2019

To exploit local and non-local prior information of the 3D seismic data for recovering missing wavefields.

Temporal Colored Coded Aperture Design in Compressive Spectral Video Sensing

K. León, L. Galvis, H. Arguello

IEEE TIP, 2018

To design the coded aperture considering the spatial-spectral-time axis via the RIP minimization.