187 citations · 198 across the 6 of their papers we have counts for
6 papers
Supervised Class-pairwise NMF for Data Representation and Classification
Rachid Hedjam, Abdelhamid Abdesselam, Seyed Mohammad Jafar Jalali +2
Various Non-negative Matrix factorization (NMF) based methods add new terms to the cost function to adapt the model to specific tasks, such as clustering, or to preserve some struc…
Non-Negative Matrix Factorization with Scale Data Structure Preservation
Rachid Hedjam, Abdelhamid Abdesselam, Abderrahmane Rahiche +1
The model described in this paper belongs to the family of non-negative matrix factorization methods designed for data representation and dimension reduction. In addition to preser…
MUG: A Parameterless No-Reference JPEG Quality Evaluator Robust to Block Size and Misalignment
Hossein Ziaei Nafchi, Atena Shahkolaei, Rachid Hedjam +1
In this letter, a very simple no-reference image quality assessment (NR-IQA) model for JPEG compressed images is proposed. The proposed metric called median of unique gradients (MU…
Mean Deviation Similarity Index: Efficient and Reliable Full-Reference Image Quality Evaluator
Hossein Ziaei Nafchi, Atena Shahkolaei, Rachid Hedjam +1
Applications of perceptual image quality assessment (IQA) in image and video processing, such as image acquisition, image compression, image restoration and multimedia communicatio…
Deviation Based Pooling Strategies For Full Reference Image Quality Assessment
Hossein Ziaei Nafchi, Rachid Hedjam, Atena Shahkolaei +1
The state-of-the-art pooling strategies for perceptual image quality assessment (IQA) are based on the mean and the weighted mean. They are robust pooling strategies which usually…
A maximal-information color to gray conversion method for document images: Toward an optimal grayscale representation for document image binarization
Reza Farrahi Moghaddam, Shaohua Chen, Rachid Hedjam +1
A novel method to convert color/multi-spectral images to gray-level images is introduced to increase the performance of document binarization methods. The method uses the distribut…