Download or read book High Quality Illumination of Virtual Objects Based on an Environment Estimation in Mixed Reality Applications written by Tobias Schwandt and published by Springer Nature. This book was released on 2021-08-30 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: Visualizations of virtual objects in the real environment is often done by a simplified representation with simple surfaces and without reference to the surrounding environment. The seamless fusion of the virtual and real environment is, however, an essential factor in many areas, which is of particular importance when calculating lighting in mixed realities on mobile devices. Current approaches focus on approximations, which allow the calculation of diffuse lighting, whereby the rendering of glossy reflection properties is often neglected. The aim of this book is to enable the visualization of mirror-like reflective surfaces in mixed reality. In order to achieve this goal, various approaches are explored enabling high-quality visualization of virtual objects in realtime with a focus on the use of common hardware such as cameras, sensors in mobile devices, and partially depth sensors. Complete ambient lighting can be estimated, which enables detailed reflections. The results provide a novel way to embed complex and simple geometric shapes with glossy surfaces in the real world which offers a higher level of detail in the reflections without using additional hardware.
Download or read book Transactions on Computational Science XXXVI written by Marina L. Gavrilova and published by Springer Nature. This book was released on 2020-03-10 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: The LNCS journal Transactions on Computational Science reflects recent developments in the field of Computational Science, conceiving the field not as a mere ancillary science but rather as an innovative approach supporting many other scientific disciplines. The journal focuses on original high-quality research in the realm of computational science in parallel and distributed environments, encompassing the facilitating theoretical foundations and the applications of large-scale computations and massive data processing. It addresses researchers and practitioners in areas ranging from aerospace to biochemistry, from electronics to geosciences, from mathematics to software architecture, presenting verifiable computational methods, findings, and solutions, and enabling industrial users to apply techniques of leading-edge, large-scale, high performance computational methods. This, the 36th issue of the Transactions on Computational Science, is devoted to the area of Cyberworlds and Cybersecurity. The first four papers constitute extended versions of selected papers presented at the 2018 International Conference on Cyberworlds, CW 2018. A further two papers were accepted following an open Call for Papers and cover the areas of fast 3D segmentation using geometric surface features and nature-inspired optimization for face recognition.
Download or read book High Dynamic Range Imaging written by Erik Reinhard and published by Morgan Kaufmann. This book was released on 2010-05-28 with total page 673 pages. Available in PDF, EPUB and Kindle. Book excerpt: High Dynamic Range Imaging, Second Edition, is an essential resource for anyone working with images, whether it is for computer graphics, film, video, photography, or lighting design. It describes HDRI technology in its entirety and covers a wide-range of topics, from capture devices to tone reproduction and image-based lighting. The techniques described enable students to produce images that have a dynamic range much closer to that found in the real world, leading to an unparalleled visual experience. This revised edition includes new chapters on High Dynamic Range Video Encoding, High Dynamic Range Image Encoding, and High Dynamic Range Display Devices. All existing chapters have been updated to reflect the current state-of-the-art technology. As both an introduction to the field and an authoritative technical reference, this book is essential for anyone working with images, whether in computer graphics, film, video, photography, or lighting design. New material includes chapters on High Dynamic Range Video Encoding, High Dynamic Range Image Encoding, and High Dynammic Range Display Devices Written by the inventors and initial implementors of High Dynamic Range Imaging Covers the basic concepts (including just enough about human vision to explain why HDR images are necessary), image capture, image encoding, file formats, display techniques, tone mapping for lower dynamic range display, and the use of HDR images and calculations in 3D rendering Range and depth of coverage is good for the knowledgeable researcher as well as those who are just starting to learn about High Dynamic Range imaging The prior edition of this book included a DVD-ROM. Files from the DVD-ROM can be accessed at: http://www.erikreinhard.com/hdr_2nd/index.html
Download or read book Illumination Estimation from Specular Highlights in Mixed Reality with Application in Diminished Reality written by Souheil Hadj Said and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diminished Reality (DR) is a video editing technique that alters reality by removing certain objects. It can be used as a preliminary step in Augmented Reality to replace real objects by virtual ones with different sizes and shapes. It can also be used solely, for example, in the case of virtually emptying a furnished apartment. The general approach of DR consists in three main steps. First, an inpainting technique is applied to a target region in the image to coherently remove an object. The image corresponds to a keyframe of the video stream. Second, the resulting inpainted region is transmitted to the next frames of the video stream by copying pixel intensities with respect to the camera pose and scene geometry. This consists in estimating the camera orientation and position in 3D which can be obtained by a Simultaneous Localization and Mapping (SLAM) technique. Third, the target region is updated with respect to the lighting change in the scene.In this thesis, we focused on the third step of the DR pipeline. Although many DR applications have been proposed in the literature, few are the ones who dealt with light change in the scene. Most of past work assumes that the surface is Lambertian and therefore perfectly diffuse. However, this is often not true, especially in indoor environments. By identifying specular highlights as the main cause for lighting change in the target region, we proposed two main approaches to address this problem.First, we proposed a specularity propagation method applied to real-time DR. Using the DR pipeline mentioned earlier, we integrated an interpolation function based on Thin-Plate Splines (TPS) in order to estimate the change ratios of the pixel intensities in the target region. This function is constrained by a number of specularity properties to achieve a plausible reconstruction of the specular highlights in the video stream. Our approach was tested on several real-time videos and achieved coherent reproduction of specularities in the context of DR.Second, we addressed the lighting problem in DR and AR as an inverse rendering problem. To do so, we analyzed the image components as described in light reflection models. In Computer Graphics, local illumination models such as Phong's are used to render synthetic images in real-time. In this case, the parameters of the model are set by the user as inputs along with the scene's geometry, the light source configuration and the camera pose. However, in a Mixed Reality (MR) application, the parameters of the model are unknown and have to be set in concordance with the real image from the camera. So, in this case we want to solve an inverse local illumination problem where the input is the real image. The output is the model's parameters along with the light source configuration, the scene's geometry and the camera pose. In this thesis, we proposed an exhaustive evaluation of the well-posedness of this problem with a focus on the specular highlights. The camera pose and the scene's geometry are estimated using the SLAM approach and the rest of the unknown parameters are estimated by minimizing a photometric cost. We showed that we can invert a local illumination model from the observation of a single specular highlight. Therefore, in the context of AR and DR applications, we do not need to know the number of light sources in the scene a priori since each specularity is processed separately. This also opens many perspectives for similar inversion problems like camera localization.
Download or read book Computer Science and its Applications written by James J. (Jong Hyuk) Park and published by Springer. This book was released on 2014-11-29 with total page 1395 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 6th FTRA International Conference on Computer Science and its Applications (CSA-14) will be held in Guam, USA, Dec. 17 - 19, 2014. CSA-14 presents a comprehensive conference focused on the various aspects of advances in engineering systems in computer science, and applications, including ubiquitous computing, U-Health care system, Big Data, UI/UX for human-centric computing, Computing Service, Bioinformatics and Bio-Inspired Computing and will show recent advances on various aspects of computing technology, Ubiquitous Computing Services and its application.
Download or read book Intelligent Computing written by Kohei Arai and published by Springer Nature. This book was released on 2023-08-19 with total page 1492 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of extremely well-articulated, insightful and unique state-ofthe-art papers presented at the Computing Conference which took place in London on June 22–23, 2023. A total of 539 papers were received out of which 193 were selected for presenting after double-blind peer-review. The book covers a wide range of scientific topics including IoT, Artificial Intelligence, Computing, Data Science, Networking, Data security and Privacy, etc. The conference was successful in reaping the advantages of both online and offline modes. The goal of this conference is to give a platform to researchers with fundamental contributions and to be a premier venue for academic and industry practitioners to share new ideas and development experiences. We hope that readers find this book interesting and valuable. We also expect that the conference and its publications will be a trigger for further related research and technology improvements in this important subject.
Download or read book Encyclopedia of Computer Graphics and Games written by Newton Lee and published by Springer Nature. This book was released on 2024-01-19 with total page 2150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of Computer Graphics and Games (ECGG) is a unique reference resource tailored to meet the needs of research and applications for industry professionals and academic communities worldwide. The ECGG covers the history, technologies, and trends of computer graphics and games. Editor Newton Lee, Institute for Education, Research, and Scholarships, Los Angeles, CA, USA Academic Co-Chairs Shlomo Dubnov, Department of Music and Computer Science and Engineering, University of California San Diego, San Diego, CA, USA Patrick C. K. Hung, University of Ontario Institute of Technology, Oshawa, ON, Canada Jaci Lee Lederman, Vincennes University, Vincennes, IN, USA Industry Co-Chairs Shuichi Kurabayashi, Cygames, Inc. & Keio University, Kanagawa, Japan Xiaomao Wu, Gritworld GmbH, Frankfurt am Main, Hessen, Germany Editorial Board Members Leigh Achterbosch, School of Science, Engineering, IT and Physical Sciences, Federation University Australia Mt Helen, Ballarat, VIC, Australia Ramazan S. Aygun, Department of Computer Science, Kennesaw State University, Marietta, GA, USA Barbaros Bostan, BUG Game Lab, Bahçeşehir University (BAU), Istanbul, Turkey Anthony L. Brooks, Aalborg University, Aalborg, Denmark Guven Catak, BUG Game Lab, Bahçeşehir University (BAU), Istanbul, Turkey Alvin Kok Chuen Chan, Cambridge Corporate University, Lucerne, Switzerland Anirban Chowdhury, Department of User Experience and Interaction Design, School of Design (SoD), University of Petroleum and Energy Studies (UPES), Dehradun, Uttarakhand, India Saverio Debernardis, Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Bari, Italy Abdennour El Rhalibi, Liverpool John Moores University, Liverpool, UK Stefano Ferretti, Department of Computer Science and Engineering, University of Bologna, Bologna, Italy Han Hu, School of Information and Electronics, Beijing Institute of Technology, Beijing, China Ms. Susan Johnston, Select Services Films Inc., Los Angeles, CA, USA Chris Joslin, Carleton University, Ottawa, Canada Sicilia Ferreira Judice, Department of Computer Science, University of Calgary, Calgary, Canada Hoshang Kolivand, Department Computer Science, Faculty of Engineering and Technology, Liverpool John Moores University, Liverpool, UK Dario Maggiorini, Department of Computer Science, University of Milan, Milan, Italy Tim McGraw, Purdue University, West Lafayette, IN, USA George Papagiannakis, ORamaVR S.A., Heraklion, Greece; FORTH-ICS, Heraklion Greece University of Crete, Heraklion, Greece Florian Richoux, Nantes Atlantic Computer Science Laboratory (LINA), Université de Nantes, Nantes, France Andrea Sanna, Dipartimento di Automatica e Informatica, Politecnico di Torino, Turin, Italy Yann Savoye, Institut fur Informatik, Innsbruck University, Innsbruck, Austria Sercan Şengün, Wonsook Kim School of Art, Illinois State University, Normal, IL, USA Ruck Thawonmas, Ritsumeikan University, Shiga, Japan Vinesh Thiruchelvam, Asia Pacific University of Technology & Innovation, Kuala Lumpur, Malaysia Rojin Vishkaie, Amazon, Seattle, WA, USA Duncan A. H. Williams, Digital Creativity Labs, Department of Computer Science, University of York, York, UK Sai-Keung Wong, National Chiao Tung University, Hsinchu, Taiwan Editorial Board Intern Sam Romershausen, Vincennes University, Vincennes, IN, USA
Download or read book Virtual Augmented and Mixed Reality written by Randall Shumaker and published by Springer. This book was released on 2015-07-20 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume constitutes the refereed proceedings of the 7th International Conference on Virtual, Augmented and Mixed Reality, VAMR 2015, held as part of the 17th International Conference on Human-Computer Interaction, HCI 2015, held in Los Angeles, CA, USA, in August 2015. The total of 1462 papers and 246 posters presented at the HCII 2015 conferences was carefully reviewed and selected from 4843 submissions. These papers address the latest research and development efforts and highlight the human aspects of design and use of computing systems. The papers thoroughly cover the entire field of human-computer interaction, addressing major advances in knowledge and effective use of computers in a variety of application areas. The 54 papers included in this volume are organized in the following topical sections: user experience in virtual and augmented environments; developing virtual and augmented environments; agents and robots in virtual environments; VR for learning and training; VR in Health and Culture; industrial and military applications.
Download or read book Augmented and Virtual Reality written by Lucio Tommaso De Paolis and published by Springer. This book was released on 2014-12-09 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly revised papers of the First International Conference on Augmented and Virtual Reality, AVR 2014, held in Lecce, Italy, in September 2014. The 28 papers, 2 tutorials and 3 keynotes presented were carefully reviewed and selected from 76 submissions. They include topics from virtual/augmented/mixed reality to 3D user interfaces and the technology needed to enable these environments to a wide range of applications (medical, entertainment, military, design, manufacture, maintenance, arts and cultural heritage).
Download or read book Computer Vision Imaging and Computer Graphics Theory and Applications written by Gabriela Csurka and published by Springer. This book was released on 2013-01-03 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the International Conference, VISIGRAPP 2011, the Joint Conference on Computer Vision, Theory and Applications (VISAPP), on Imaging Theory and Applications (IMAGAPP), on Computer Graphics Theory and Applications (GRAPP), and on Information Visualization Theory and Applications (IVAPP), held in Vilamoura, Portugal, in March 2011. The 15 revised full papers presented together with one invited paper were carefully reviewed and selected. The papers are organized in topical sections on computer graphics theory and applications; imaging theory and applications; information visualization theory and applications; and computer vision theory and applications.
Download or read book Advances in Multimedia Information Processing PCM 2005 written by Yo-Sung Ho and published by Springer Science & Business Media. This book was released on 2005-10-31 with total page 1049 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are delighted to welcome readers to the proceedings of the 6th Pacific-Rim Conference on Multimedia (PCM). The first PCM was held in Sydney, Australia, in 2000. Since then, it has been hosted successfully by Beijing, China, in 2001, Hsinchu, Taiwan, in 2002, Singapore in 2003, and Tokyo, Japan, in 2004, and finally Jeju, one of the most beautiful and fantastic islands in Korea. This year, we accepted 181 papers out of 570 submissions including regular and special session papers. The acceptance rate of 32% indicates our commitment to ensuring a very high-quality conference. This would not be possible without the full support of the excellent Technical Committee and anonymous reviewers that provided timely and insightful reviews. We would therefore like to thank the Program Committee and all reviewers. The program of this year reflects the current interests of the PCM’s. The accepted papers cover a range of topics, including, all aspects of multimedia, both technical and artistic perspectives and both theoretical and practical issues. The PCM 2005 program covers tutorial sessions and plenary lectures as well as regular presentations in three tracks of oral sessions and a poster session in a single track. We have tried to expand the scope of PCM to the artistic papers which need not to be strictly technical.
Download or read book Spatial Augmented Reality written by Oliver Bimber and published by CRC Press. This book was released on 2005-08-08 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Like virtual reality, augmented reality is becoming an emerging platform in new application areas for museums, edutainment, home entertainment, research, industry, and the art communities using novel approaches which have taken augmented reality beyond traditional eye-worn or hand-held displays. In this book, the authors discuss spatial augmented r
Download or read book Image Analysis and Processing ICIAP 2023 Workshops written by Gian Luca Foresti and published by Springer Nature. This book was released on 2024-01-20 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two-volume set LNCS 14365 and 14366 constitutes the papers of workshops hosted by the 22nd International Conference on Image Analysis and Processing, ICIAP 2023, held in Udine, Italy, in September 2023. In total, 72 workshop papers and 10 industrial poster session papers have been accepted for publication. Part II of the set, volume 14366, contains 41 papers from the following workshops:– Medical Imaging Hub:• Artificial Intelligence and Radiomics in Computer-Aided Diagnosis (AIR-CAD)• Multi-Modal Medical Imaging Processing (M3IP)• Federated Learning in Medical Imaging and Vision (FedMed)– Digital Humanities Hub:• Artificial Intelligence for Digital Humanities (AI4DH)• Fine Art Pattern Extraction and Recognition (FAPER)• Pattern Recognition for Cultural Heritage (PatReCH)• Visual Processing of Digital Manuscripts: Workflows, Pipelines, BestPractices (ViDiScript)
Download or read book Transactions on Computational Science XXXVII written by Marina L. Gavrilova and published by Springer Nature. This book was released on 2020-07-13 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: The LNCS journal Transactions on Computational Science reflects recent developments in the field of Computational Science, conceiving the field not as a mere ancillary science but rather as an innovative approach supporting many other scientific disciplines. The journal focuses on original high-quality research in the realm of computational science in parallel and distributed environments, encompassing the facilitating theoretical foundations and the applications of large-scale computations and massive data processing. It addresses researchers and practitioners in areas ranging from aerospace to biochemistry, from electronics to geosciences, from mathematics to software architecture, presenting verifiable computational methods, findings, and solutions, and enabling industrial users to apply techniques of leading-edge, large-scale, high performance computational methods.This, the 37th issue of the Transactions on Computational Science, is devoted to the area of Computer Graphics. The 9 papers included in the volume constitute extended versions of selected papers presented at the 36th Computer Graphics International Conference, CGI 2019. Topics covered include virtual reality, augmented reality, image retrieval, animation of elastoplastic material, and visualization of 360°HDR images.
Download or read book Frontiers of Computer Vision written by Wataru Ohyama and published by Springer Nature. This book was released on 2020-04-27 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes refereed proceedings of the 26th International Workshop Frontiers of Computer Vision, IW-FCV 2020, held in Ibusuki, Kagoshima, Japan, in February 2020. The 27 full papers presented were thoroughly reviewed and selected from 68 submissions. The papers in the volume are organized according to the following topics: real-world applications; face, pose, and action recognition; object detection and tracking; inspection and diagnosis; camera, 3D and imaging.
Download or read book Augmented Reality written by Soha Maad and published by BoD – Books on Demand. This book was released on 2010-01-01 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Virtual Reality (VR) and Augmented Reality (AR) tools and techniques supply virtual environments that have key characteristics in common with our physical environment. Viewing and interacting with 3D objects is closer to reality than abstract mathematical and 2D approaches. Augmented Reality (AR) technology, a more expansive form of VR is emerging as a cutting-edge technology that integrates images of virtual objects into a real world. In that respect Virtual and Augmented reality can potentially serve two objectives: reflecting realism through a closer correspondence with real experience, and extending the power of computer-based technology to better reflect abstract experience. With the growing amount of digital data that can be stored and accessed there is a rising need to harness this data and transform it into an engine capable of developing our view and perception of the world and of boosting the economic activity across domain verticals. Graphs, pie charts and spreadsheet are not anymore the unique medium to convey the world. Advanced interactive patterns of visualization and representations are emerging as a viable alternative with the latest advances in emerging technologies such as AR and VR. And the potential and rewards are tremendous. This book discusses the opportunities and challenges facing the development of this technology.
Download or read book Augmented Reality written by Osslan Osiris Vergara Villegas and published by CRC Press. This book was released on 2024-06-03 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on augmented reality (AR) technology, which uses the real environment to superimpose virtual elements. Therefore, the reader can create applications that simulate scenarios that can be dangerous or expensive to generate in the real world. AR has proven helpful in education, marketing, and industrial scenarios. AR technology improves the user experience of various disciplines, incorporating virtual information that maximizes the experience and adds knowledge. This book intends students, researchers, and developers to have the possibility of finding the foundations on which AR technology rests. Our book intends that students, researchers, and developers: (i) learn the basics of AR; (ii) understand the technologies that support AR; (iii) know about AR applications that have been a watershed; (iv) gain an understanding of the critical elements needed to implement an AR application; (v) acquire skill in the step-by-step development of an AR application; (vi) learn how to use the instruments to evaluate an AR application; (vii) understand how to present the information about study cases; and (viii) gain knowledge about AR challenges and trends.
