https://sam.ensam.eu:443 The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. Fri, 12 Jun 2026 11:36:34 GMT 2026-06-12T11:36:34Z http://hdl.handle.net/10985/6693 Test-bench for evaluating navigation and interaction in large virtual databases MIRZAEI, Mohammad Ali; PÈRE, Christian; MERIENNE, Frédéric; CHARDONNET, Jean-Rémy 3D systems due to its complicated electronical, mechanical and vision accessories have enormous degree of complexity both in design and evaluation. Navigation system usually plays an important role in most 3D systems. Therefore, having an efficient navigation system and evaluation of the system has great deal of importance. 3D systems have a lot of parameters, inputs and outputs thus; evaluation process requires a complete test bench to collect and analyse maximum possible efficient parameters and variables. This paper will propose a test bench based on a tracker, navigation device status, and some biological and motion feedback from end-user to analyse a 3D system and associated navigation system performance. An original test procedure will be provided for evaluating navigation in 3D scenes by focusing on experimental aspects such as metric variable definition for measurement, case selection criteria and test-bed design. The novelty in our approach is the use of information given by the brain to understand the human perception in VE and to improve navigation in 3D scenes and interaction with virtual reality. Sun, 01 Jan 2012 00:00:00 GMT http://hdl.handle.net/10985/6693 2012-01-01T00:00:00Z MIRZAEI, Mohammad Ali PÈRE, Christian MERIENNE, Frédéric CHARDONNET, Jean-Rémy 3D systems due to its complicated electronical, mechanical and vision accessories have enormous degree of complexity both in design and evaluation. Navigation system usually plays an important role in most 3D systems. Therefore, having an efficient navigation system and evaluation of the system has great deal of importance. 3D systems have a lot of parameters, inputs and outputs thus; evaluation process requires a complete test bench to collect and analyse maximum possible efficient parameters and variables. This paper will propose a test bench based on a tracker, navigation device status, and some biological and motion feedback from end-user to analyse a 3D system and associated navigation system performance. An original test procedure will be provided for evaluating navigation in 3D scenes by focusing on experimental aspects such as metric variable definition for measurement, case selection criteria and test-bed design. The novelty in our approach is the use of information given by the brain to understand the human perception in VE and to improve navigation in 3D scenes and interaction with virtual reality. http://hdl.handle.net/10985/6681 Designing a 3D Navigation System Using Cognitive Factors MIRZAEI, Mohammad Ali; PÈRE, Christian; MERIENNE, Frédéric; CHARDONNET, Jean-Rémy This paper focuses on the measurement and the mathematical definition of cognitive parameters of designing a navigation systembased on these parameters. The nausea level due to different velocities of a 3D scene, the user head rotation around Yaw, Roll and Pitch axes, the delay between navigation device stimuli and the 3D display movement are measured. Appropriate mathematical functions are fitted to the measurements. A sickness level is defined as an accumulation of a nausea level due to the velocity and the delay. Assigning an analog control button on the navigation device will help the user to adjust the speed. The records of the test-bed and practical experiments prove the effectiveness of this kind of design. Moreover, due to the parametric design of the system, any maloperation can be readjusted with further inquiries over the specific applications. In addition, any amendment or modification performance can be compared with the parametric criteria. Sun, 01 Jan 2012 00:00:00 GMT http://hdl.handle.net/10985/6681 2012-01-01T00:00:00Z MIRZAEI, Mohammad Ali PÈRE, Christian MERIENNE, Frédéric CHARDONNET, Jean-Rémy This paper focuses on the measurement and the mathematical definition of cognitive parameters of designing a navigation systembased on these parameters. The nausea level due to different velocities of a 3D scene, the user head rotation around Yaw, Roll and Pitch axes, the delay between navigation device stimuli and the 3D display movement are measured. Appropriate mathematical functions are fitted to the measurements. A sickness level is defined as an accumulation of a nausea level due to the velocity and the delay. Assigning an analog control button on the navigation device will help the user to adjust the speed. The records of the test-bed and practical experiments prove the effectiveness of this kind of design. Moreover, due to the parametric design of the system, any maloperation can be readjusted with further inquiries over the specific applications. In addition, any amendment or modification performance can be compared with the parametric criteria. http://hdl.handle.net/10985/9134 Représentation hybride du modèle numérique pour la gestion d'un patrimoine bâti dit ancien LANDRIEU, Jérémie; PÈRE, Christian; NUGRAHA BAHAR, Yudi; NICOLAS, Ghislain Cet article traite de la mise en place d’un outil permettant la portabilité de la maquette numérique d’un projet architectural sur site et de l’utilisation de calques de représentations apportant des fonctionnalités propres aux différents corps de métiers susceptible d’intervenir sur ce site. Le cas d’étude considère des travaux de rénovation sur des fenêtres anciennes dont il convient d’améliorer l’efficacité énergétique. Déjà présent sur HAL mais sans le fichier pdf Tue, 01 Jan 2013 00:00:00 GMT http://hdl.handle.net/10985/9134 2013-01-01T00:00:00Z LANDRIEU, Jérémie PÈRE, Christian NUGRAHA BAHAR, Yudi NICOLAS, Ghislain Cet article traite de la mise en place d’un outil permettant la portabilité de la maquette numérique d’un projet architectural sur site et de l’utilisation de calques de représentations apportant des fonctionnalités propres aux différents corps de métiers susceptible d’intervenir sur ce site. Le cas d’étude considère des travaux de rénovation sur des fenêtres anciennes dont il convient d’améliorer l’efficacité énergétique. http://hdl.handle.net/10985/9288 Hybrid representation of digital mockup for heritage buildings management NICOLAS, Ghislain; LANDRIEU, Jérémie; NUGRAHA BAHAR, Yudi; PÈRE, Christian This article deals with the implementation of tool allowing the portability of the digital mock-up for architectural projects on the building renovation place and the use of representation layers giving functions adapted to the different workers open to work in this place. Our test case is applied to renovation works on old windows in an ancient abbey where it is necessary to improve the thermal efficiency. Tue, 01 Jan 2013 00:00:00 GMT http://hdl.handle.net/10985/9288 2013-01-01T00:00:00Z NICOLAS, Ghislain LANDRIEU, Jérémie NUGRAHA BAHAR, Yudi PÈRE, Christian This article deals with the implementation of tool allowing the portability of the digital mock-up for architectural projects on the building renovation place and the use of representation layers giving functions adapted to the different workers open to work in this place. Our test case is applied to renovation works on old windows in an ancient abbey where it is necessary to improve the thermal efficiency. http://hdl.handle.net/10985/7722 New Mother Wavelet for Pattern Detection in IR Image MIRZAEI, Mohammad Ali; PRIANTO, Sugeng; PÈRE, Christian; MERIENNE, Frédéric; CHARDONNET, Jean-Rémy The paper presents a new mother wavelet adapted from a specific pattern. Wavelet multi-resolution analysis uses this wavelet to detect the position of the pattern in an Infra-Red (IR) signal under scale variation and the presence of noise. IR signal is extracted from IR image sequence recorded by an IR camera, Time of Flight (TOF) sensor configuration. The maximum correlation between the pattern and the signal of interest will be used as a criterion to define the mother wavelet. The proposed mother wavelet were tested and verified under the scale variation and the presence of noise. The experimental tests and performance analysis show promising results for both scale variation and noisy signal. 90% accuracy for the proposed wavelet under intensive noisy condition (50% of the signal amplitude) is guaranteed and high precision is expected under real condition. This work has been founded by the French project FUI Callisto Tue, 01 Jan 2013 00:00:00 GMT http://hdl.handle.net/10985/7722 2013-01-01T00:00:00Z MIRZAEI, Mohammad Ali PRIANTO, Sugeng PÈRE, Christian MERIENNE, Frédéric CHARDONNET, Jean-Rémy The paper presents a new mother wavelet adapted from a specific pattern. Wavelet multi-resolution analysis uses this wavelet to detect the position of the pattern in an Infra-Red (IR) signal under scale variation and the presence of noise. IR signal is extracted from IR image sequence recorded by an IR camera, Time of Flight (TOF) sensor configuration. The maximum correlation between the pattern and the signal of interest will be used as a criterion to define the mother wavelet. The proposed mother wavelet were tested and verified under the scale variation and the presence of noise. The experimental tests and performance analysis show promising results for both scale variation and noisy signal. 90% accuracy for the proposed wavelet under intensive noisy condition (50% of the signal amplitude) is guaranteed and high precision is expected under real condition. http://hdl.handle.net/10985/9455 A Thermal Simulation Tool for Building and Its Interoperability through the Building Information Modeling (BIM) Platform NUGRAHA BAHAR, Yudi; PÈRE, Christian; LANDRIEU, Jérémie; NICOLLE, Christophe This paper describes potential challenges and opportunities for using thermal simulation tools to optimize building performance. After reviewing current trends in thermal simulation, it outlines major criteria for the evaluation of building thermal simulation tools based on specifications and capabilities in interoperability. Details are discussed including workflow of data exchange of multiple thermal analyses such as the BIM-based application. The present analysis focuses on selected thermal simulation tools that provide functionalities to exchange data with other tools in order to obtain a picture of its basic work principles and to identify selection criteria for generic thermal tools in BIM. Significances and barriers to integration design with BIM and building thermal simulation tools are also discussed. Tue, 01 Jan 2013 00:00:00 GMT http://hdl.handle.net/10985/9455 2013-01-01T00:00:00Z NUGRAHA BAHAR, Yudi PÈRE, Christian LANDRIEU, Jérémie NICOLLE, Christophe This paper describes potential challenges and opportunities for using thermal simulation tools to optimize building performance. After reviewing current trends in thermal simulation, it outlines major criteria for the evaluation of building thermal simulation tools based on specifications and capabilities in interoperability. Details are discussed including workflow of data exchange of multiple thermal analyses such as the BIM-based application. The present analysis focuses on selected thermal simulation tools that provide functionalities to exchange data with other tools in order to obtain a picture of its basic work principles and to identify selection criteria for generic thermal tools in BIM. Significances and barriers to integration design with BIM and building thermal simulation tools are also discussed. http://hdl.handle.net/10985/7455 Sensor fusion for interactive real-scale modeling and simulation systems MIRZAEI, Mohammad Ali; PÈRE, Christian; MERIENNE, Frédéric; CHARDONNET, Jean-Rémy This paper proposes an accurate sensor fusion scheme for navigation inside a real-scale 3D model by combining audio and video signals. Audio signal of a microphone-array is merged by Minimum Variance Distortion-less Response (MVDR) algorithm and processed instantaneously via Hidden Markov Model (HMM) to generate translation commands by word-to-action module of speech processing system. Then, the output of optical head tracker (four IR cameras) is analyzed by non-linear/non-Gaussian Bayesian algorithm to provide information about the orientation of the user's head. The orientation is used to redirect the user toward a new direction by applying quaternion rotation. The output of these two sensors (video and audio) is combined under the sensor fusion scheme to perform continuous travelling inside the model. The maximum precision for the traveling task is achieved under sensor fusion scheme. Practical experiment shows promising results for the implementation. Tue, 01 Jan 2013 00:00:00 GMT http://hdl.handle.net/10985/7455 2013-01-01T00:00:00Z MIRZAEI, Mohammad Ali PÈRE, Christian MERIENNE, Frédéric CHARDONNET, Jean-Rémy This paper proposes an accurate sensor fusion scheme for navigation inside a real-scale 3D model by combining audio and video signals. Audio signal of a microphone-array is merged by Minimum Variance Distortion-less Response (MVDR) algorithm and processed instantaneously via Hidden Markov Model (HMM) to generate translation commands by word-to-action module of speech processing system. Then, the output of optical head tracker (four IR cameras) is analyzed by non-linear/non-Gaussian Bayesian algorithm to provide information about the orientation of the user's head. The orientation is used to redirect the user toward a new direction by applying quaternion rotation. The output of these two sensors (video and audio) is combined under the sensor fusion scheme to perform continuous travelling inside the model. The maximum precision for the traveling task is achieved under sensor fusion scheme. Practical experiment shows promising results for the implementation. http://hdl.handle.net/10985/9290 Integration of thermal building simulation and VR techniques for sustainable building projects NUGRAHA BAHAR, Yudi; LANDRIEU, Jérémie; PÈRE, Christian; NICOLLE, Christophe The importance of energy efficiency and integration of advances in building design and VR technology have led this research to focus on thermal simulation results visualized in a virtual environment to optimize building design. This paper combines the principle of integration for thermal calculation and scientific visualization in VR. The method is to use CAD models (extensively used in architectural design) to analyze a building's thermal performance and visualize it, as well as simulating it through VR technology. Interaction between users and objects in a virtual world are certainly through techniques of visualization metaphors. The object of the experiment was the Gunzo room, located in an old building on the historical site of the Cluny Abbey in France. An application and an experiment scenario of a thermal simulation was created to interactively visualize the results in the immersion room, and tested by some participants. The experiment was conducted to simulate object-based data models that are specific to the thermal domain, using tools provided by the IFC format. This choice was made to overcome the limitations of general-purpose geometric representations, particularly in data exchange among the selected tools used for the simulation. Analyzing the application has demonstrated that it is possible to conduct a specific data workflow in order to represent building performance data, and particularly thermal simulation results in VR. With this integration method, the data flow that starts from the design process is completely and accurately channeled to the VR system. Déjà présent sur HAL mais sans le fichier pdf Tue, 01 Jan 2013 00:00:00 GMT http://hdl.handle.net/10985/9290 2013-01-01T00:00:00Z NUGRAHA BAHAR, Yudi LANDRIEU, Jérémie PÈRE, Christian NICOLLE, Christophe The importance of energy efficiency and integration of advances in building design and VR technology have led this research to focus on thermal simulation results visualized in a virtual environment to optimize building design. This paper combines the principle of integration for thermal calculation and scientific visualization in VR. The method is to use CAD models (extensively used in architectural design) to analyze a building's thermal performance and visualize it, as well as simulating it through VR technology. Interaction between users and objects in a virtual world are certainly through techniques of visualization metaphors. The object of the experiment was the Gunzo room, located in an old building on the historical site of the Cluny Abbey in France. An application and an experiment scenario of a thermal simulation was created to interactively visualize the results in the immersion room, and tested by some participants. The experiment was conducted to simulate object-based data models that are specific to the thermal domain, using tools provided by the IFC format. This choice was made to overcome the limitations of general-purpose geometric representations, particularly in data exchange among the selected tools used for the simulation. Analyzing the application has demonstrated that it is possible to conduct a specific data workflow in order to represent building performance data, and particularly thermal simulation results in VR. With this integration method, the data flow that starts from the design process is completely and accurately channeled to the VR system. http://hdl.handle.net/10985/9298 Digital rebirth of the greatest church of Cluny Maior Ecclesia: From optronic surveys to real time use of the digital Model LANDRIEU, Jérémie; PÈRE, Christian; ROLLIER-HANSELMANN, Juliette; CASTANDET, Stéphanie; SCHOTTÉ, Guillaume Our multidisciplinary team has virtually reconstructed the greatest church of the Romanesque period in Europe. The third church of the Abbey of Cluny (12th c.) has been destroyed after the French Revolution, leaving only 8% of the building standing. Many documents have been studied, to include the latest archaeological knowledge in the virtual model. Most remains have been scanned for CAD restitution. The mock-up of the church needed 1600 different numerical files, including the scanned pieces and the anastylosis of a Romanesque portal, a Gothic façade and a mosaic pavement. We faced various difficulties to assemble the different elements of the huge building, and to include the digitized parts. Our workflow consisted in generating geometrical shapes of the church, enriched with metadata such as texture, material... The whole mock up was finally exported to dedicated software to run the rendering step. Our work consisted in creating a whole database of 3D models as well as 2D sources (plans, engravings, pictures...) accessible by the scientific community. The scientific perspectives focus on a representation in virtual immersion of the grand church at scale 1 and an access to the digital mock-up through Augmented Reality. Sat, 01 Jan 2011 00:00:00 GMT http://hdl.handle.net/10985/9298 2011-01-01T00:00:00Z LANDRIEU, Jérémie PÈRE, Christian ROLLIER-HANSELMANN, Juliette CASTANDET, Stéphanie SCHOTTÉ, Guillaume Our multidisciplinary team has virtually reconstructed the greatest church of the Romanesque period in Europe. The third church of the Abbey of Cluny (12th c.) has been destroyed after the French Revolution, leaving only 8% of the building standing. Many documents have been studied, to include the latest archaeological knowledge in the virtual model. Most remains have been scanned for CAD restitution. The mock-up of the church needed 1600 different numerical files, including the scanned pieces and the anastylosis of a Romanesque portal, a Gothic façade and a mosaic pavement. We faced various difficulties to assemble the different elements of the huge building, and to include the digitized parts. Our workflow consisted in generating geometrical shapes of the church, enriched with metadata such as texture, material... The whole mock up was finally exported to dedicated software to run the rendering step. Our work consisted in creating a whole database of 3D models as well as 2D sources (plans, engravings, pictures...) accessible by the scientific community. The scientific perspectives focus on a representation in virtual immersion of the grand church at scale 1 and an access to the digital mock-up through Augmented Reality. http://hdl.handle.net/10985/10562 Pertinence d’une représentation 3D d’un projet de rénovation de bâtiment en réalité augmentée mobile LANDRIEU, Jérémie; NUGRAHA BAHAR, Yudi; PÈRE, Christian; NICOLLE, Christophe; MERIENNE, Frédéric Cet article aborde la possibilité de disposer de la maquette numérique d’un projet de construction sur le lieu même du déroulement des opérations. Le cas d’étude considère des travaux de rénovation sur des fenêtres anciennes dont il convient d’améliorer l’efficacité énergétique. Sun, 01 Jan 2012 00:00:00 GMT http://hdl.handle.net/10985/10562 2012-01-01T00:00:00Z LANDRIEU, Jérémie NUGRAHA BAHAR, Yudi PÈRE, Christian NICOLLE, Christophe MERIENNE, Frédéric Cet article aborde la possibilité de disposer de la maquette numérique d’un projet de construction sur le lieu même du déroulement des opérations. Le cas d’étude considère des travaux de rénovation sur des fenêtres anciennes dont il convient d’améliorer l’efficacité énergétique.