Download or read book Towards Urban 3D Modeling Using Mobile LiDAR and Images written by Ruisheng Wang and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis addresses the challenging problems in creating 3D photorealistic building models using mobile LiDAR and images. We focus on ground-based sensing techniques, consisting of two stages. In the first stage, I present two new methods using either images or mobile LiDAR data alone for 3D urban modeling. The limitations of using each data alone are discussed, which leads to the sensor fusion research in the next phase. In the second stage, I introduce methodologies to maximize the synergy by fusing images and mobile LIDAR for upsampling range data towards the goal of generating 3D photorealistic urban models. There are fundamental research challenges involved in each stage of this work. In the first stage, I address the ill-posed problem of how much 3D information we can infer from single images. Proposed is a new model-based approach to 3D building reconstruction from single images. This method does not require model-to-image projection and readjustment ...

Download or read book Towards Urban Three Dimensional Modeling Using Mobile LiDAR and Images written by Ruisheng Wang and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Building Information Modeling for a Smart and Sustainable Urban Space written by Rafika Hajji and published by John Wiley & Sons. This book was released on 2022-01-26 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Urban spaces are being called upon to develop a capacity for resilience and sustainability in order to meet the major challenges they face. To achieve such a goal, a practical development framework must be implemented in order to take advantage of the technological innovations that characterize the field of construction and urban engineering. Today, multi-scale BIM is bringing about significant changes that are redefining the paradigms of urban management. It facilitates simulations of the sustainability of urban spaces with respect to several criteria; most notably relating to energy, the economy and the environment. Building Information Modeling for a Smart and Sustainable Urban Space proposes a theoretical and practical framework for implementing BIM models for the creation of sustainable and intelligent urban spaces. It addresses the issues of acquisition, modeling, interoperability, and BIM and GIS integration for the production of BIM models. Case studies are presented, providing a practical dimension that demonstrates the production process of the urban model and its contribution to multiscale simulations, particularly in real estate evaluation and urban renewal.

Download or read book Urban Informatics written by Wenzhong Shi and published by Springer Nature. This book was released on 2021-04-06 with total page 941 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book is the first to systematically introduce the principles of urban informatics and its application to every aspect of the city that involves its functioning, control, management, and future planning. It introduces new models and tools being developed to understand and implement these technologies that enable cities to function more efficiently – to become ‘smart’ and ‘sustainable’. The smart city has quickly emerged as computers have become ever smaller to the point where they can be embedded into the very fabric of the city, as well as being central to new ways in which the population can communicate and act. When cities are wired in this way, they have the potential to become sentient and responsive, generating massive streams of ‘big’ data in real time as well as providing immense opportunities for extracting new forms of urban data through crowdsourcing. This book offers a comprehensive review of the methods that form the core of urban informatics from various kinds of urban remote sensing to new approaches to machine learning and statistical modelling. It provides a detailed technical introduction to the wide array of tools information scientists need to develop the key urban analytics that are fundamental to learning about the smart city, and it outlines ways in which these tools can be used to inform design and policy so that cities can become more efficient with a greater concern for environment and equity.

Download or read book The Application of Airborne Lidar Data in the Modelling of 3D Urban Landscape Ecology written by Ziyue Chen and published by Cambridge Scholars Publishing. This book was released on 2016-12-14 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compared with traditional remote sensing technologies, airborne Lidar data can provide researchers with additional 3D positional information, which is a key factor for advanced urban research, and particularly that of urban landscape ecology. Therefore, the need for applying Lidar data to a variety of disciplines is rapidly growing. However, the lack of remote sensing background makes the wider use of Lidar data highly difficult for scholars from other disciplines. In contrast to the majority of Lidar-related books that focus on sophisticated principles and general applications of Lidar data, this book provides the reader with a feasible framework for applying airborne Lidar data to urban research. In addition to providing a general introduction to the subject, this book explains in detail a series of case studies to demonstrate how these theoretical models can be employed to address practical urban issues. As such, this book not only provides Lidar scholars with a series of specifically designed research methods, but will also serve to inspire scholars from other disciplines, such as geographers, urban planners, ecologists, and decision-makers, with a complete framework of potential application fields.

Download or read book Toward Knowledge based Automatic 3D Spatial Topological Modeling from LiDAR Point Clouds for Urban Areas written by Xufeng Xing and published by . This book was released on 2020 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: The processing of a very large set of LiDAR data is very costly and necessitates automatic 3D modeling approaches. In addition, incomplete point clouds caused by occlusion and uneven density and the uncertainties in the processing of LiDAR data make it difficult to automatic creation of semantically enriched 3D models. This research work aims at developing new solutions for the automatic creation of complete 3D geometric models with semantic labels from incomplete point clouds. A framework integrating knowledge about objects in urban scenes into 3D modeling is proposed for improving the completeness of 3D geometric models using qualitative reasoning based on semantic information of objects and their components, their geometric and spatial relations. Moreover, we aim at taking advantage of the qualitative knowledge of objects in automatic feature recognition and further in the creation of complete 3D geometric models from incomplete point clouds. To achieve this goal, several algorithms are proposed for automatic segmentation, the identification of the topological relations between object components, feature recognition and the creation of complete 3D geometric models. (1) Machine learning solutions have been proposed for automatic semantic segmentation and CAD-like segmentation to segment objects with complex structures. (2) We proposed an algorithm to efficiently identify topological relationships between object components extracted from point clouds to assemble a Boundary Representation model. (3) The integration of object knowledge and feature recognition has been developed to automatically obtain semantic labels of objects and their components. In order to deal with uncertain information, a rule-based automatic uncertain reasoning solution was developed to recognize building components from uncertain information extracted from point clouds. (4) A heuristic method for creating complete 3D geometric models was designed using building knowledge, geometric and topological relations of building components, and semantic information obtained from feature recognition. Finally, the proposed framework for improving automatic 3D modeling from point clouds of urban areas has been validated by a case study aimed at creating a complete 3D building model. Experiments demonstrate that the integration of knowledge into the steps of 3D modeling is effective in creating a complete building model from incomplete point clouds.

Download or read book 3D Modeling of Buildings written by Raphaële Héno and published by John Wiley & Sons. This book was released on 2014-07-22 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional topographic databases, obtained by capture on aerial or spatial images provide a simplified 3D modeling of our urban environment, answering the needs of numerous applications (development, risk prevention, mobility management, etc.). However, when we have to represent and analyze more complex sites (monuments, civil engineering works, archeological sites, etc.), these models no longer suffice and other acquisition and processing means have to be implemented. This book focuses on the study of adapted lifting means for “notable buildings”. The methods tackled in this book cover lasergrammetry and the current techniques of dense correlation based on images using conventional photogrammetry.

Download or read book Remote Sensed Data and Processing Methodologies for 3D Virtual Reconstruction and Visualization of Complex Architectures written by Diego Gonzalez-Aguilera and published by MDPI. This book was released on 2018-09-28 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Remote Sensed Data and Processing Methodologies for 3D Virtual Reconstruction and Visualization of Complex Architectures" that was published in Remote Sensing

Download or read book Urban Remote Sensing written by Xiaojun Yang and published by John Wiley & Sons. This book was released on 2011-03-23 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: Urban Remote Sensing is designed for upper level undergraduates, graduates, researchers and practitioners, and has a clear focus on the development of remote sensing technology for monitoring, synthesis and modeling in the urban environment. It covers four major areas: the use of high-resolution satellite imagery or alternative sources of image date (such as high-resolution SAR and LIDAR) for urban feature extraction; the development of improved image processing algorithms and techniques for deriving accurate and consistent information on urban attributes from remote sensor data; the development of analytical techniques and methods for deriving indicators of socioeconomic and environmental conditions that prevail within urban landscape; and the development of remote sensing and spatial analytical techniques for urban growth simulation and predictive modeling.

Download or read book Multimodal 3D Fa ade Reconstruction Using 3D LiDAR and Images written by Haotian Xu and published by . This book was released on 2019 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: 3D urban reconstruction is an active research area which is significant for many applications, such as virtual tours and urban planning. 3D facade reconstruction is a fundamental task in this research area. 3D real-time LiDAR is an ideal choice for capturing the 3D data in large-scale 3D urban reconstruction because of its fast working speed and mobility. However, the resulting 3D point cloud is very sparse and is not directly suitable for 3D reconstruction. In this paper, we aim to provide a new method for 3D facade reconstruction, which is based on the fusion of 3D terrestrial LiDAR and images. Our novelty lies in the extraction of semantic information from images and a state-of-the-art depth completion method used to estimate the missing depth information in LiDAR scans. The basic idea of our 3D facade reconstruction method is an iterative optimization process of sparse depth maps. More specifically, the input LiDAR point cloud is first converted to a depth map of the input image. Then, facade elements made of glass (e.g., windows) are extracted by using an instance segmentation technique. Once these elements are located, their exact depth values can be estimated by using weak architectural constraints. Finally, a data-driven depth completion methods based on CNN is used for predicting the rest of missing depth data in the semi-dense depth map, which generates the final completed dense depth map. Besides, we present a new dataset used for 3D facade reconstruction. The dataset contains LiDAR scans and images of the 15 different facades in the City Campus of the University of Auckland. All the 2D and 3D data in this dataset are calibrated. The proposed 3D facade reconstruction method was evaluated on this new dataset. The experimental results show that our approach can generate photorealistic 3D reconstruction models for some particular styles of facades. Also, our method is able to identify facade elements such as windows and doors to enhance 3D models of buildings semantically.

Download or read book Non Destructive Techniques for the Evaluation of Structures and Infrastructure written by Belén Riveiro and published by CRC Press. This book was released on 2016-04-04 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview and up-to-date synthesis of the most commonly used non-destructive technologies for the reverse engineering of built infrastructure facilities. These technologies tackle both the geometric and radiometric characterization of built structures, and thus, validated technologies such as laser scanning, photogrammetry, and

Download or read book Concepts in Smart Societies written by Chaudhery Mustansar Hussain and published by CRC Press. This book was released on 2024-01-09 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: We live in a society driven by rapid and unpredictable changes. The concept of the “fourth industrial revolution” was introduced less than ten years ago - the more aware and reality oriented “smart factories”. By this we mean novelties in production technologies, enabling IT services and greater attention to energy consumption. Today, we are discussing the fifth stage in the evolution of society, the advent of the 5.0 company. This book outlines strategic lines and suggests future directions for the development of the "super smart society" which takes responsibility and ensures sustainability by adhering to new smart technologies and skills. The book is intended for a broad audience working in the fields of material science and engineering, energy, environment, etc. It is an invaluable reference source for researchers, academicians, students, industrial institutions, government and independent institutes, individual research groups and scientists working in the field of industrial applications of smart manufacturing design.

Download or read book Intelligent Autonomous Systems 13 written by Emanuele Menegatti and published by Springer. This book was released on 2015-09-03 with total page 1669 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the latest research accomplishments, innovations, and visions in the field of robotics as presented at the 13th International Conference on Intelligent Autonomous Systems (IAS), held in Padua in July 2014, by leading researchers, engineers, and practitioners from across the world. The contents amply confirm that robots, machines, and systems are rapidly achieving intelligence and autonomy, mastering more and more capabilities such as mobility and manipulation, sensing and perception, reasoning, and decision making. A wide range of research results and applications are covered, and particular attention is paid to the emerging role of autonomous robots and intelligent systems in industrial production, which reflects their maturity and robustness. The contributions have been selected through a rigorous peer-review process and contain many exciting and visionary ideas that will further galvanize the research community, spurring novel research directions. The series of biennial IAS conferences commenced in 1986 and represents a premiere event in robotics.

Download or read book Innovations in 3D Geo Information Sciences written by Umit Isikdag and published by Springer. This book was released on 2014-06-07 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: 3D GeoInfo aims to bring together international state-of-the-art research and facilitate the dialogue on emerging topics in the field of 3D geo-information. The conference offers an interdisciplinary forum in the fields of 3D data collection and modeling; reconstruction and methods for 3D representation; data management for maintenance of 3D geo-information or 3D data analysis and visualization. The book covers the best papers from 3D GeoInfo held in Istanbul in November 2013.

Download or read book Guidelines for the Use of Mobile LIDAR in Transportation Applications written by Michael James Olsen and published by Transportation Research Board. This book was released on 2013 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: " TRB's National Cooperative Highway Research Program (NCHRP) Report 748: Guidelines for the Use of Mobile LIDAR in Transportation Applications presents guidelines for the application of mobile 3D light detection and ranging (LIDAR) technology to the operations of state departments of transportation. Mobile LIDAR uses laser scanning equipment mounted on vehicles in combination with global positioning systems (GPS) and inertial measurement units (IMU) to rapidly and safely capture large datasets necessary to create highly accurate, high resolution digital representations of roadways and their surroundings. " -- Publisher's description.

Download or read book Recording Modeling and Visualization of Cultural Heritage written by Manos Baltsavias and published by CRC Press. This book was released on 2005-11-17 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the recording, modelling and visualization of cultural heritage (anthropogenic objects and natural scenes) and related processes. The areas discussed include data acquisition, using a variety of sensors (mainly optical sensors and laser scanners); platforms and mobile systems; data management and Spatial Information Systems; 3D modeling; and reconstruction, visualization and animation; Virtual and Augmented Reality, including innovative software and hardware systems; applications and interdisciplinary projects. A central focus is the development of methods for automated data processing. The aim of the workshop was to survey recent developments, trends, and new approaches and to bring together the various heterogeneous groups active in cultural heritage (sponsors, archaeologists and architects, scientists in remote sensing, photogrammetry, computer vision and computer graphics etc.). The involvement of these groups, representing both producers and users of information, allowed a cross-fertilisation and a multidisciplinary treatment of the workshop topics. This book offers a comprehensive selection of high-quality contributions from leading international research institutions and other organisations active in cultural heritage, treating theoretical issues as well as projects and applications and representing the cutting edge of this key subject as presented at the workshop organised by the Swiss Federal Institute of Technology (ETH) Zurich at Monte Verità, Ascona, Switzerland on 22-27 May 2005.

Download or read book The Routledge Handbook of Geospatial Technologies and Society written by Alexander J. Kent and published by Taylor & Francis. This book was released on 2023-08-17 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Routledge Handbook of Geospatial Technologies and Society provides a relevant and comprehensive reference point for research and practice in this dynamic field. It offers detailed explanations of geospatial technologies and provides critical reviews and appraisals of their application in society within international and multi-disciplinary contexts as agents of change. The ability of geospatial data to transform knowledge in contemporary and future societies forms an important theme running throughout the entire volume. Contributors reflect on the changing role of geospatial technologies in society and highlight new applications that represent transformative directions in society and point towards new horizons. Furthermore, they encourage dialogue across disciplines to bring new theoretical perspectives on geospatial technologies, from neurology to heritage studies. The international contributions from leading scholars and influential practitioners that constitute the Handbook provide a wealth of critical examples of these technologies as agents of change in societies around the globe. The book will appeal to advanced undergraduates and practitioners interested or engaged in their application worldwide.