Latest Publications
Historical documents dating using multispectral imaging and ordinal classification
The estimation of the age of undated old manuscripts is one of the most challenging and controversial tasks in the field of historical document analysis. Several dating methods have been proposed, but most of them either use destructive techniques or […]
KFBin: Kalman Filter-Based Approach for Document Image Binarization
In this paper, we propose a novel two-step approach, called KFBin, for the binarization of document images based on the Kalman filtering (KF) technique. In the first step, a state space model is developed as a new document image representation, […]
Kernel Orthogonal Nonnegative Matrix Factorization: Application to Multispectral Document Image Decomposition
As a nonlinear extension of the standard nonnegative matrix factorization (NMF), kernel-based variants have demonstrated to be more effective for discovering meaningful latent features from raw data. However, many existing kernel methods allow only obtaining the basis matrix in the […]
Blind Decomposition of Multispectral Document Images Using Orthogonal Nonnegative Matrix Factorization
This paper addresses the challenge of Multispectral (MS) document image segmentation, which is an essential step for subsequent document image analysis. Most previous studies have focused only on binary (text/non-text) separation. They also rely on handcrafted features and techniques dedicated […]
