Processing Full-Waveform Lidar Data: Modelling Raw Signals (2008)
Chauve, Adrien, Mallet, Clément, Bretar, Frédéric, Durrieu, Sylvie, Pierrot Deseilligny, Marc, Puech, William
of each laser pulse. It has been demonstrated that decomposing the return waveforms into a mixture of Gaussian components was suitable. In this paper, we focus on the improvement of peak detection...
Attack By Colorization of a Grey-Level Image Hiding its Color Palette (2008)
Chaumont, Marc, Puech, William
In this paper, we present a novel attack named colorization attack. This attack is specific to color-hiding watermarking schemes. The objective of this work is to demonstrate the feasibility of such...
Scalable Data Hiding for Online Textured 3D Terrain Visualization (2008)
Hayat, Khizar, Puech, William, Gesquière, Gilles
A method for 3D scalable visualization, in a client/server environment is presented. The main idea presented in this paper is to increase the quality of 3D visualization for low bit rate...
Puech, William, Coatrieux, Gouenou
During the last decade, image and signal compression for storage and transmission purpose has seen a great expansion. But what about medical data compression? Should a medical image or a...
Chauve, Adrien, Durrieu, Sylvie, Bretar, Frédéric, Pierrot Deseilligny, Marc, Puech, William
Small footprint discrete return lidar data have already proved useful for providing information on forest areas. During the last decade, a new generation of airborne laser scanners, called...
Amat, Philippe, Puech, William, Druon, Sébastien, Pedeboy, Jean-Pierre
Day by day, the amount of digital data has been rapidly increasing on the Internet. The size of 3D objects is very large and these objects need fast transmissions. Moreover, 3D data security becomes...
A Reversible Data Hiding Method for Encrypted Images (2008)
Puech, William, Chaumont, Marc, Strauss, Olivier
Since several years, the protection of multimedia data is becoming very important. The protection of this multimedia data can be done with encryption or data hiding algorithms. To decrease the...
Processing Full-Waveform Lidar Data: Modelling Raw Signals (2008)
Chauve, Adrien, Mallet, Clément, Bretar, Frédéric, Durrieu, Sylvie, Pierrot Deseilligny, Marc, Puech, William
of each laser pulse. It has been demonstrated that decomposing the return waveforms into a mixture of Gaussian components was suitable. In this paper, we focus on the improvement of peak detection...
Attack By Colorization of a Grey-Level Image Hiding its Color Palette (2008)
Chaumont, Marc, Puech, William
In this paper, we present a novel attack named colorization attack. This attack is specific to color-hiding watermarking schemes. The objective of this work is to demonstrate the feasibility of such...
Scalable Data Hiding for Online Textured 3D Terrain Visualization (2008)
Hayat, Khizar, Puech, William, Gesquière, Gilles
A method for 3D scalable visualization, in a client/server environment is presented. The main idea presented in this paper is to increase the quality of 3D visualization for low bit rate...
Puech, William, Coatrieux, Gouenou
During the last decade, image and signal compression for storage and transmission purpose has seen a great expansion. But what about medical data compression? Should a medical image or a...
Chauve, Adrien, Durrieu, Sylvie, Bretar, Frédéric, Pierrot Deseilligny, Marc, Puech, William
Small footprint discrete return lidar data have already proved useful for providing information on forest areas. During the last decade, a new generation of airborne laser scanners, called...
Amat, Philippe, Puech, William, Druon, Sébastien, Pedeboy, Jean-Pierre
Day by day, the amount of digital data has been rapidly increasing on the Internet. The size of 3D objects is very large and these objects need fast transmissions. Moreover, 3D data security becomes...
A Reversible Data Hiding Method for Encrypted Images (2008)
Puech, William, Chaumont, Marc, Strauss, Olivier
Since several years, the protection of multimedia data is becoming very important. The protection of this multimedia data can be done with encryption or data hiding algorithms. To decrease the...
Meuel, Peter, Chaumont, Marc, Puech, William
Nous proposons dans cet article une méthode de protection de Régions dIntérêt (RI) par insertion de données cachées. Notre méthode comporte une phase de détection automatique des RI (dans...
Meuel, Peter, Chaumont, Marc, Puech, William
Nous proposons dans cet article une méthode de protection de Régions dIntérêt (RI) par insertion de données cachées. Notre méthode comporte une phase de détection automatique des RI (dans...
A Grey-Level Image Embedding its Color Palette (2007)
Chaumont, Marc, Puech, William
In this paper, we propose a method to embed the color information of an image in its corresponding grey-level image. The objective of this work is to allow free access to the greylevel image and give...
A Grey-Level Image Embedding its Color Palette (2007)
Chaumont, Marc, Puech, William
In this paper, we propose a method to embed the color information of an image in its corresponding grey-level image. The objective of this work is to allow free access to the greylevel image and give...
Dissimulation de Données par Changement de Connexité d'un Maillage 3D (2007)
Amat, Philippe, Puech, William, Druon, Sébastien, Pedeboy, Jean-Pierre
Cet article présente une nouvelle méthode dinsertion de données cachées dans des modèles 3D surfacique. Les méthodes dinsertion de données se basent généralement sur la modification des...
Dissimulation de Données par Changement de Connexité d'un Maillage 3D (2007)
Amat, Philippe, Puech, William, Druon, Sébastien, Pedeboy, Jean-Pierre
Cet article présente une nouvelle méthode dinsertion de données cachées dans des modèles 3D surfacique. Les méthodes dinsertion de données se basent généralement sur la modification des...
A New Fast Reversible Method for Image Safe Transfer (2007)
Puech, William, Rodrigues, José, Develay-Morice, Jean-Eric
In this paper a novel reversible method for fast and safe image transfer is proposed. The method combines compression, data hiding and partial encryption of images in a single processing step. The...
A Data Hiding Method Based on the Topology Change of a 3D Triangular Mesh (2007)
Amat, Philippe, Puech, William, Druon, Sébastien, Pedeboy, Jean-Pierre
In this paper we present a new method of data hiding in 3D objects. This method is based on a 3D model represented by a cloud of vertices and a list of edges corresponding to the triangular mesh of...
Hayat, Khizar, Puech, William, Gesquière, Gilles
Real-time on-line 3D visualization of terrain is a memory intensive process accompanied by considerably large data transfer across the network and thus data compression is inevitable. The upcoming...
Analysis and Cryptanalysis of a Selective Encryption Method for JPEG Images (2007)
Puech, William, Rodrigues, José, Bors, Adrian
This paper addresses the protection of images. We address the problem of simultaneous selective encryption (SE) and image compression. The SE is done by using the Advanced Encryption Standard (AES)...
Fast Protection of The Color of High Dimension Digital Painting Images (2007)
Chaumont, Marc, Puech, William
In this paper, we propose a method to embed the color information of an high dimension image in its corresponding grey-level image. The objective of this work is to allow a free and rapid access to...
A New Fast Reversible Method for Image Safe Transfer (2007)
Puech, William, Rodrigues, José, Develay-Morice, Jean-Eric
In this paper a novel reversible method for fast and safe image transfer is proposed. The method combines compression, data hiding and partial encryption of images in a single processing step. The...
A Data Hiding Method Based on the Topology Change of a 3D Triangular Mesh (2007)
Amat, Philippe, Puech, William, Druon, Sébastien, Pedeboy, Jean-Pierre
In this paper we present a new method of data hiding in 3D objects. This method is based on a 3D model represented by a cloud of vertices and a list of edges corresponding to the triangular mesh of...
Hayat, Khizar, Puech, William, Gesquière, Gilles
Real-time on-line 3D visualization of terrain is a memory intensive process accompanied by considerably large data transfer across the network and thus data compression is inevitable. The upcoming...
Analysis and Cryptanalysis of a Selective Encryption Method for JPEG Images (2007)
Puech, William, Rodrigues, José, Bors, Adrian
This paper addresses the protection of images. We address the problem of simultaneous selective encryption (SE) and image compression. The SE is done by using the Advanced Encryption Standard (AES)...
Fast Protection of The Color of High Dimension Digital Painting Images (2007)
Chaumont, Marc, Puech, William
In this paper, we propose a method to embed the color information of an high dimension image in its corresponding grey-level image. The objective of this work is to allow a free and rapid access to...
Data Hiding in H.264 Video for Lossless Reconstruction of Region of Interest (2007)
Meuel, Peter, Chaumont, Marc, Puech, William
In this paper, we propose a method to protect faces in videosurveillance scenes. Our method deletes any visible information of faces in a video and uses a data-hiding technique to embed information...
Data Hiding in H.264 Video for Lossless Reconstruction of Region of Interest (2007)
Meuel, Peter, Chaumont, Marc, Puech, William
In this paper, we propose a method to protect faces in videosurveillance scenes. Our method deletes any visible information of faces in a video and uses a data-hiding technique to embed information...
Wavelet Based Data-Hiding of DEM in the Context of Real Time 3D Visualization (2007)
Hayat, Khizar, Puech, William, Gesquière, Gilles, Chaumont, Marc
The use of aerial photographs, satellite images, scanned maps and digital elevation models necessitates the setting up of strategies for the storage and visualization of these data in an interactive...
Wavelet Based Data-Hiding of DEM in the Context of Real Time 3D Visualization (2007)
Hayat, Khizar, Puech, William, Gesquière, Gilles, Chaumont, Marc
The use of aerial photographs, satellite images, scanned maps and digital elevation models necessitates the setting up of strategies for the storage and visualization of these data in an interactive...
Wavelet Based Data-Hiding of DEM in the Context of Real Time 3D Visualization (2007)
Hayat, Khizar, Puech, William, Gesquière, Gilles, Chaumont, Marc
The use of aerial photographs, satellite images, scanned maps and digital elevation models necessitates the setting up of strategies for the storage and visualization of these data in an interactive...
Hayat, Khizar, Gesquière, Gilles, Puech, William
La visualisation 3D dun terrain sur des médias de faibles capacités amène à résoudre des problèmes de compression de données et de synchronisation de ces données obtenues, à travers le...
Hayat, Khizar, Gesquière, Gilles, Puech, William
La visualisation 3D dun terrain sur des médias de faibles capacités amène à résoudre des problèmes de compression de données et de synchronisation de ces données obtenues, à travers le...
Insertion d'une palette couleur dans une image en niveaux de gris (2007)
Chaumont, Marc, Puech, William
Ce papier traite de la protection de linformation couleur dune image couleur. Limage, dont la couleur est protégée par insertion de données cachées, est accessible librement en niveaux de...
Insertion d'une palette couleur dans une image en niveaux de gris (2007)
Chaumont, Marc, Puech, William
Ce papier traite de la protection de linformation couleur dune image couleur. Limage, dont la couleur est protégée par insertion de données cachées, est accessible librement en niveaux de...
Digital image restoration by Wiener filter in 2D case (2007)
Khireddine, A., Benmahammed, K., Puech, William
Modern digital technology has made it possible to manipulate multi-dimensional signals with systems that range from simple digital circuits to advanced parallel computers. The goal of this...
Digital image restoration by Wiener filter in 2D case (2007)
Khireddine, A., Benmahammed, K., Puech, William
Modern digital technology has made it possible to manipulate multi-dimensional signals with systems that range from simple digital circuits to advanced parallel computers. The goal of this...
A DCT-Based Data-Hiding Method to Embed the Color Information in a JPEG Grey Level Image (2007)
Chaumont, Marc, Puech, William
In this paper, we propose an original method to embed the color information of an image in a corresponding compressed grey-level image. The objective of this work is to allow free access to the...
3D Face Model Tracking Based On A Multiresolution Active Search (2007)
Chaumont, Marc, Puech, William
This paper deals with face tracking in difficult conditions of non calibrated camera, strong head motions, thanks to a deformable 3D model. In those conditions, the proposed approach is able to...
A Fast And Efficient Method To Protect Color Images (2007)
Chaumont, Marc, Puech, William
In this paper, we propose a method to embed the color information of an image in a corresponding grey-level image. The objective of this work is to allow free access to the grey-level image and give...
Codage hybride cryptage-marquage-compression pour la sécurisation de l'information médicale (2007)
Puech, William, Coatrieux, Gouenou
Nous montrons dans ce chapitre comment des algorithmes de cryptage et de marquage permettent la sécurisation des images médicales. De nos jours, de plus en plus d'images numériques sont...
Hayat, Khizar, Puech, William, Gesquière, Gilles, Chaumont, Marc
L'utilisation de photographies aériennes, d'images satellites, de cartes scannées et de modèles numériques de terrains amène à mettre en place des stratégies de stockage et de visualisation de...
Rodrigues, José, Puech, William
Dans cet article nous proposons une nouvelle approche de protection de visages pour des environnements surveillés par caméra vidéo. L'objectif est de chiffrer rapidement les visages contenus dans...
Une image couleur cachée dans une image en niveaux de gris (2007)
Chaumont, Marc, Puech, William
Dans cet article, nous proposons une méthode originale d'insertion des informations couleur d'une image dans l'image en niveaux de gris correspondante. L'objectif de ce travail est de mettre en...
3D Face Model Tracking Based On A Multiresolution Active Search (2007)
Chaumont, Marc, Puech, William
This paper deals with face tracking in difficult conditions of non calibrated camera, strong head motions, thanks to a deformable 3D model. In those conditions, the proposed approach is able to...
A Fast And Efficient Method To Protect Color Images (2007)
Chaumont, Marc, Puech, William
In this paper, we propose a method to embed the color information of an image in a corresponding grey-level image. The objective of this work is to allow free access to the grey-level image and give...
Codage hybride cryptage-marquage-compression pour la sécurisation de l'information médicale (2007)
Puech, William, Coatrieux, Gouenou
Nous montrons dans ce chapitre comment des algorithmes de cryptage et de marquage permettent la sécurisation des images médicales. De nos jours, de plus en plus d'images numériques sont...
Hayat, Khizar, Puech, William, Gesquière, Gilles, Chaumont, Marc
L'utilisation de photographies aériennes, d'images satellites, de cartes scannées et de modèles numériques de terrains amène à mettre en place des stratégies de stockage et de visualisation de...
Rodrigues, José, Puech, William
Dans cet article nous proposons une nouvelle approche de protection de visages pour des environnements surveillés par caméra vidéo. L'objectif est de chiffrer rapidement les visages contenus dans...
Une image couleur cachée dans une image en niveaux de gris (2007)
Chaumont, Marc, Puech, William
Dans cet article, nous proposons une méthode originale d'insertion des informations couleur d'une image dans l'image en niveaux de gris correspondante. L'objectif de ce travail est de mettre en...
A DCT-Based Data-Hiding Method to Embed the Color Information in a JPEG Grey Level Image (2007)
Chaumont, Marc, Puech, William
In this paper, we propose an original method to embed the color information of an image in a corresponding compressed grey-level image. The objective of this work is to allow free access to the...
Puech, William, Rodrigues, José, Develay-Morice, Jean-Eric
The traffic of digital images has increased rapidly in the wide networks. The protection of this kind of data becomes important for many reasons such as confidentiality, obscurity and security....
Selective Encryption of Human Skin in JPEG Images (2007)
Rodrigues, José, Puech, William, Bors, Adrian
In this study we propose a new approach for selective encryption in the Huffman coding of the Discrete Cosine Transform (DCT) coefficients using the Advanced Encryption Standard (AES). The objective...
Puech, William, Rodrigues, José, Develay-Morice, Jean-Eric
The traffic of digital images has increased rapidly in the wide networks. The protection of this kind of data becomes important for many reasons such as confidentiality, obscurity and security....
Selective Encryption of Human Skin in JPEG Images (2007)
Rodrigues, José, Puech, William, Bors, Adrian
In this study we propose a new approach for selective encryption in the Huffman coding of the Discrete Cosine Transform (DCT) coefficients using the Advanced Encryption Standard (AES). The objective...
A Color Image Hidden in a Grey-Level Image (2007)
Chaumont, Marc, Puech, William
In this paper, we propose a method to embed the color information of an image in a corresponding grey-level image. The objective of this work is to allow free access to the grey-level image and give...
Minimizing Data-Hiding Noise in Color JPEG Images by Adapting the Quantization (2007)
Toutant, Jean-Luc, Puech, William, Fiorio, Christophe
The data-hiding is an application of the steganography. Its purpose is to embed a large amount of data in images in an invisible way. Several methods are robust to the JPEG compression algorithm. In...
Minimizing Data-Hiding Noise in Color JPEG Images by Adapting the Quantization (2007)
Toutant, Jean-Luc, Puech, William, Fiorio, Christophe
The data-hiding is an application of the steganography. Its purpose is to embed a large amount of data in images in an invisible way. Several methods are robust to the JPEG compression algorithm. In...
A Color Image Hidden in a Grey-Level Image (2007)
Chaumont, Marc, Puech, William
In this paper, we propose a method to embed the color information of an image in a corresponding grey-level image. The objective of this work is to allow free access to the grey-level image and give...
A Selective Encryption for Heterogenous Color JPEG Images Based on VLC and AES Stream Cipher (2007)
Rodrigues, José, Puech, William, Bors, Adrian
Nowadays, the most important engine to provide confidentiality is encryption. Therefore, the classical and modern ciphers are not suitable for huge quantity of data in real-time environment....
A Selective Encryption for Heterogenous Color JPEG Images Based on VLC and AES Stream Cipher (2007)
Rodrigues, José, Puech, William, Bors, Adrian
Nowadays, the most important engine to provide confidentiality is encryption. Therefore, the classical and modern ciphers are not suitable for huge quantity of data in real-time environment....
Insertion d'une palette couleur dans une image en niveaux de gris (2007)
CHAUMONT, Marc, PUECH, William
Ce papier traite de la protection de l'information couleur d'une image couleur. L'image, dont la couleur est protégée par insertion de données cachées, est accessible librement en niveaux de gris...
HAYAT, Khizar, GESQUIERE, Gilles, PUECH, William
La visualisation 3D d'un terrain sur des médias de faibles capacités amène à résoudre des problèmes de compression de données et de synchronisation de ces données obtenues, à travers le...
A Multi-Watermarking Method Based on Wavelets Combined with the EZW Coder (2006)
Chouchane, Sabrina, Puech, William
In this paper, we present a new semi-blind watermarking method with secret key by embedding several watermarks in the same image. This embedding is done when the originale image is being coded by the...
A Multi-Watermarking Method Based on Wavelets Combined with the EZW Coder (2006)
Chouchane, Sabrina, Puech, William
In this paper, we present a new semi-blind watermarking method with secret key by embedding several watermarks in the same image. This embedding is done when the originale image is being coded by the...
Hayat, Khizar, Puech, William, Chaumont, Marc, Gesquiere, Gilles
The use of aerial photographs, satellite images, scanned maps and digital elevation models necessitates the setting up of strategies for the storage and visualization of these data. In order to...
Hayat, Khizar, Puech, William, Chaumont, Marc, Gesquiere, Gilles
The use of aerial photographs, satellite images, scanned maps and digital elevation models necessitates the setting up of strategies for the storage and visualization of these data. In order to...
Face Protection by Fast Selective Encryption in a Video (2006)
Rodrigues, José, Puech, William, Meuel, Peter, Bajard, Jean-Claude, Chaumont, Marc
In this paper we propose an approach for monitoring human activities in an indoor environment using detected and tracked face and selective encryption. The objective is to encrypt partially the human...
Crypto-Compression of Medical Images by Selective Encryption of DCT (2006)
Puech, William, Rodrigues, Jose Marconi
The traffic of digital images has grown rapidly in the Internet. Security of image becomes important for many sectors mainly for medical applications. Nowadays, the transmission of medical images is...
Crypto-Compression d'Images Médicales par Cryptage Partiel des Coefficients DCT (2006)
Puech, William, Rodrigues, Jose Marconi
The traffic of digital images has increased rapidly in the Internet. Security of image becomes important for many sectors mainly for medical applications. Nowadays, the transmission of medical images...
Crypto-Compression d'Images Médicales par Cryptage Partiel des Coefficients DCT (2006)
Puech, William, Rodrigues, Jose Marconi
The traffic of digital images has increased rapidly in the Internet. Security of image becomes important for many sectors mainly for medical applications. Nowadays, the transmission of medical images...
Crypto-Compression of Medical Images by Selective Encryption of DCT (2006)
Puech, William, Rodrigues, Jose Marconi
The traffic of digital images has grown rapidly in the Internet. Security of image becomes important for many sectors mainly for medical applications. Nowadays, the transmission of medical images is...
Face Protection by Fast Selective Encryption in a Video (2006)
Rodrigues, José, Puech, William, Meuel, Peter, Bajard, Jean-Claude, Chaumont, Marc
In this paper we propose an approach for monitoring human activities in an indoor environment using detected and tracked face and selective encryption. The objective is to encrypt partially the human...
Automatic Active Contours Propagation in a Sequence of Medical Images (2006)
Djemal, Khalifa, Puech, William, Rossetto, Bruno
In this paper we present a new algorithm to track an organ in a sequence of medical images in order to achieve a 3D reconstruction. The automatic method that we propose allows the tracking of the...
Automatic Active Contours Propagation in a Sequence of Medical Images (2006)
Djemal, Khalifa, Puech, William, Rossetto, Bruno
In this paper we present a new algorithm to track an organ in a sequence of medical images in order to achieve a 3D reconstruction. The automatic method that we propose allows the tracking of the...