Search

Your search keyword '"Zagrouba, Ezzeddine"' showing total 327 results
Start Over Author "Zagrouba, Ezzeddine"
327 results on '"Zagrouba, Ezzeddine"'

9. Seuillage par hyst\'er\'esis pour le test de photo-consistance des voxels dans le cadre de la reconstruction 3D

Author

Bakkay, Mohamed Chafik, Barhoumi, Walid, and Zagrouba, Ezzeddine

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

Voxel coloring is a popular method of reconstructing a three-dimensional surface model from a set of calibrated 2D images. However, the reconstruction quality is largely dependent on a thresholding procedure allowing the authors to decide, for each voxel, whether it is photo-consistent or not. Even so, this method is widely used because of its simplicity and low computational cost. We have returned to this method in order to propose an improvement in the thresholding step which will be fully automated. Indeed, the geometrical information is implicitly integrated using an hysteresis thresholding which takes into account the spatial coherence of color voxels. Moreover, the ambiguity of choosing the thresholds is extremely minimized by defining a fuzzy degree of membership of each voxel into the class of consistent voxels. Also, there is no need for preset thresholds since the hysteresis ones are defined automatically and adaptively depending on the number of images that the voxel isprojected onto. Preliminary results are very promising and demonstrate that the proposed method performs automatically precise and smooth volumetric scene reconstruction., Comment: in French

Published
2018

11. Unsupervised Object Cosegmentation Method Devoted to Image Classification.

Author

Merdassi, Hager, Barhoumi, Walid, and Zagrouba, Ezzeddine

Subjects
IMAGE recognition (Computer vision), MARKOV random fields, ENERGY function, SOCIAL networks, PIXELS, HISTOGRAMS
Abstract

Rich heterogeneous data provided by social networks can be very big, which imposes considerable challenges for object extraction and image classification. Therefore, the objective of this work is to propose an unsupervised object cosegmentation method that could be notably efficient to improve image classification performance. The main goal of cosegmentation is to extract the salient common objects within each image. To this end, we propose to minimize an energy function based on the Markov Random Field using the saliency detection, while considering linear dependence of generated foreground histograms of the input image collection. In fact, the saliency detection is processed in two steps. In each image, we detect salient objects, by considering appearance similarity and spatial distributions of image pixels. Then, fuzzy quantification is used to correct the belonging of pixels to the foreground objects. Finally, an iterative optimization permits to enhance the final segmentation results. The proposed method has been validated as a preprocessing step for image classification. Indeed, to enhance cosegmentation-based classification performance, we have applied a semi-supervised object classification based on ensemble projection. Qualitative and quantitative evaluations of the proposed cosegmentation and classification techniques on the iCoseg, CDS and Oxford Flowers 17 datasets demonstrate the effectiveness of the proposed framework. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

12. Toward a Robust Shape and Texture Face Descriptor for Efficient Face Recognition in the Wild

Author

Abed, Rahma, Bahroun, Sahbi, Zagrouba, Ezzeddine, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Tsapatsoulis, Nicolas, editor, Panayides, Andreas, editor, Theocharides, Theo, editor, Lanitis, Andreas, editor, Pattichis, Constantinos, editor, and Vento, Mario, editor

Published
2021
Full Text
View/download PDF

16. Modeling Trajectories for 3D Motion Analysis

Author

Elaoud, Amani, Barhoumi, Walid, Drira, Hassen, Zagrouba, Ezzeddine, Barbosa, Simone Diniz Junqueira, Editorial Board Member, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Kotenko, Igor, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Cláudio, Ana Paula, editor, Bouatouch, Kadi, editor, Chessa, Manuela, editor, Paljic, Alexis, editor, Kerren, Andreas, editor, Hurter, Christophe, editor, Tremeau, Alain, editor, and Farinella, Giovanni Maria, editor

Published
2020
Full Text
View/download PDF

17. Multi-modal Image Fusion Based on Weight Local Features and Novel Sum-Modified-Laplacian in Non-subsampled Shearlet Transform Domain

Author

Ouerghi, Hajer, Mourali, Olfa, Zagrouba, Ezzeddine, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Bebis, George, editor, Yin, Zhaozheng, editor, Kim, Edward, editor, Bender, Jan, editor, Subr, Kartic, editor, Kwon, Bum Chul, editor, Zhao, Jian, editor, Kalkofen, Denis, editor, and Baciu, George, editor

Published
2020
Full Text
View/download PDF

21. Simultaneous Semi-supervised Segmentation of Category-Independent Objects from a Collection of Images

Author

Merdassi, Hager, Barhoumi, Walid, Zagrouba, Ezzeddine, Barbosa, Simone Diniz Junqueira, Editorial Board Member, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Kotenko, Igor, Editorial Board Member, Yuan, Junsong, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Chen, Liming, editor, Ben Amor, Boulbaba, editor, and Ghorbel, Faouzi, editor

Published
2019
Full Text
View/download PDF

22. An Efficient Anaglyph 3D Video Watermarking Approach Based on Hybrid Insertion

Author

Dhaou, Dorra, Ben Jabra, Saoussen, Zagrouba, Ezzeddine, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Vento, Mario, editor, and Percannella, Gennaro, editor

Published
2019
Full Text
View/download PDF

26. Parallel and Distributed Local Fisher Discriminant Analysis to Reduce Hyperspectral Images on Cloud Computing Architectures

Author

Zaatour, Rania, Bouzidi, Sonia, Zagrouba, Ezzeddine, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Weikum, Gerhard, Series Editor, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Blanc-Talon, Jacques, editor, Helbert, David, editor, Philips, Wilfried, editor, Popescu, Dan, editor, and Scheunders, Paul, editor

Published
2018
Full Text
View/download PDF

40. Multimodal Image Fusion Based on Non-subsampled Shearlet Transform and Neuro-Fuzzy

Author

Hermessi, Haithem, Mourali, Olfa, Zagrouba, Ezzeddine, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kara, Orhun, Series editor, Kotenko, Igor, Series editor, Liu, Ting, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Ben Amor, Boulbaba, editor, Chaieb, Faten, editor, and Ghorbel, Faouzi, editor

Published
2017
Full Text
View/download PDF

41. Gaussian Bayes Classifier for 2D Shapes in Kendall Space

Author

Rouahi, Hibat Allah, Mtibaa, Riadh, Zagrouba, Ezzeddine, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kara, Orhun, Series editor, Kotenko, Igor, Series editor, Liu, Ting, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Ben Amor, Boulbaba, editor, Chaieb, Faten, editor, and Ghorbel, Faouzi, editor

Published
2017
Full Text
View/download PDF

42. A Robust Video Watermarking for Real-Time Application

Author

Bayoudh, Ines, Jabra, Saoussen Ben, Zagrouba, Ezzeddine, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Blanc-Talon, Jacques, editor, Penne, Rudi, editor, Philips, Wilfried, editor, Popescu, Dan, editor, and Scheunders, Paul, editor

Published
2017
Full Text
View/download PDF

43. Shearlet-Based Region Map Guidance for Improving Hyperspectral Image Classification

Author

Zaouali, Mariem, Bouzidi, Sonia, Zagrouba, Ezzeddine, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Blanc-Talon, Jacques, editor, Penne, Rudi, editor, Philips, Wilfried, editor, Popescu, Dan, editor, and Scheunders, Paul, editor

Published
2017
Full Text
View/download PDF

44. Analysis of Skeletal Shape Trajectories for Person Re-Identification

Author

Elaoud, Amani, Barhoumi, Walid, Drira, Hassen, Zagrouba, Ezzeddine, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Blanc-Talon, Jacques, editor, Penne, Rudi, editor, Philips, Wilfried, editor, Popescu, Dan, editor, and Scheunders, Paul, editor

Published
2017
Full Text
View/download PDF

45. On Combining Imputation Methods for Handling Missing Data

Author

Ben Hariz, Nassima, Khoufi, Hela, Zagrouba, Ezzeddine, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Benferhat, Salem, editor, Tabia, Karim, editor, and Ali, Moonis, editor

Published
2017
Full Text
View/download PDF

46. Enhanced Similarity Measure for Sparse Subspace Clustering Method

Author

Hechmi, Sabra, Gallas, Abir, Zagrouba, Ezzeddine, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Rojas, Ignacio, editor, Joya, Gonzalo, editor, and Catala, Andreu, editor

Published
2017
Full Text
View/download PDF

47. Bayesian Approach in Kendall Shape Space for Plant Species Classification

Author

Rouahi, Hibat’Allah, Mtibaa, Riadh, Zagrouba, Ezzeddine, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Alexandre, Luís A., editor, Salvador Sánchez, José, editor, and Rodrigues, João M. F., editor

Published
2017
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results