Material Appearance Modeling A Data Coherent Approach
DOWNLOAD
Download Material Appearance Modeling A Data Coherent Approach PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Material Appearance Modeling A Data Coherent Approach book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Material Appearance Modeling A Data Coherent Approach
DOWNLOAD
Author : Yue Dong
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-03
Material Appearance Modeling A Data Coherent Approach written by Yue Dong and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-03 with Computers categories.
A principal aim of computer graphics is to generate images that look as real as photographs. Realistic computer graphics imagery has however proven to be quite challenging to produce, since the appearance of materials arises from complicated physical processes that are difficult to analytically model and simulate, and image-based modeling of real material samples is often impractical due to the high-dimensional space of appearance data that needs to be acquired. This book presents a general framework based on the inherent coherency in the appearance data of materials to make image-based appearance modeling more tractable. We observe that this coherence manifests itself as low-dimensional structure in the appearance data, and by identifying this structure we can take advantage of it to simplify the major processes in the appearance modeling pipeline. This framework consists of two key components, namely the coherence structure and the accompanying reconstruction method to fully recover the low-dimensional appearance data from sparse measurements. Our investigation of appearance coherency has led to three major forms of low-dimensional coherence structure and three types of coherency-based reconstruction upon which our framework is built. This coherence-based approach can be comprehensively applied to all the major elements of image-based appearance modeling, from data acquisition of real material samples to user-assisted modeling from a photograph, from synthesis of volumes to editing of material properties, and from efficient rendering algorithms to physical fabrication of objects. In this book we present several techniques built on this coherency framework to handle various appearance modeling tasks both for surface reflections and subsurface scattering, the two primary physical components that generate material appearance. We believe that coherency-based appearance modeling will make it easier and more feasible for practitioners to bring computer graphics imagery to life. This book is aimed towards readers with an interest in computer graphics. In particular, researchers, practitioners and students will benefit from this book by learning about the underlying coherence in appearance structure and how it can be utilized to improve appearance modeling. The specific techniques presented in our manuscript can be of value to anyone who wishes to elevate the realism of their computer graphics imagery. For understanding this book, an elementary background in computer graphics is assumed, such as from an introductory college course or from practical experience with computer graphics.
Digital Modeling Of Material Appearance
DOWNLOAD
Author : Julie Dorsey
language : en
Publisher: Elsevier
Release Date : 2010-07-21
Digital Modeling Of Material Appearance written by Julie Dorsey and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-07-21 with Computers categories.
Computer graphics systems are capable of generating stunningly realistic images of objects that have never physically existed. In order for computers to create these accurately detailed images, digital models of appearance must include robust data to give viewers a credible visual impression of the depicted materials. In particular, digital models demonstrating the nuances of how materials interact with light are essential to this capability. Digital Modeling of Material Appearance is the first comprehensive work on the digital modeling of material appearance: it explains how models from physics and engineering are combined with keen observation skills for use in computer graphics rendering. Written by the foremost experts in appearance modeling and rendering, this book is for practitioners who want a general framework for understanding material modeling tools, and also for researchers pursuing the development of new modeling techniques. The text is not a "how to" guide for a particular software system. Instead, it provides a thorough discussion of foundations and detailed coverage of key advances. Practitioners and researchers in applications such as architecture, theater, product development, cultural heritage documentation, visual simulation and training, as well as traditional digital application areas such as feature film, television, and computer games, will benefit from this much needed resource. ABOUT THE AUTHORS Julie Dorsey and Holly Rushmeier are professors in the Computer Science Department at Yale University and co-directors of the Yale Computer Graphics Group. François Sillion is a senior researcher with INRIA (Institut National de Recherche en Informatique et Automatique), and director of its Grenoble Rhône-Alpes research center. First comprehensive treatment of the digital modeling of material appearance Provides a foundation for modeling appearance, based on the physics of how light interacts with materials, how people perceive appearance, and the implications of rendering appearance on a digital computer An invaluable, one-stop resource for practitioners and researchers in a variety of fields dealing with the digital modeling of material appearance
Physically Based Rendering Of Synthetic Objects In Real Environments
DOWNLOAD
Author : Joel Kronander
language : en
Publisher: Linköping University Electronic Press
Release Date : 2015-11-10
Physically Based Rendering Of Synthetic Objects In Real Environments written by Joel Kronander and has been published by Linköping University Electronic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-11-10 with Computer graphics categories.
This thesis presents methods for photorealistic rendering of virtual objects so that they can be seamlessly composited into images of the real world. To generate predictable and consistent results, we study physically based methods, which simulate how light propagates in a mathematical model of the augmented scene. This computationally challenging problem demands both efficient and accurate simulation of the light transport in the scene, as well as detailed modeling of the geometries, illumination conditions, and material properties. In this thesis, we discuss and formulate the challenges inherent in these steps and present several methods to make the process more efficient. In particular, the material contained in this thesis addresses four closely related areas: HDR imaging, IBL, reflectance modeling, and efficient rendering. The thesis presents a new, statistically motivated algorithm for HDR reconstruction from raw camera data combining demosaicing, denoising, and HDR fusion in a single processing operation. The thesis also presents practical and robust methods for rendering with spatially and temporally varying illumination conditions captured using omnidirectional HDR video. Furthermore, two new parametric BRDF models are proposed for surfaces exhibiting wide angle gloss. Finally, the thesis also presents a physically based light transport algorithm based on Markov Chain Monte Carlo methods that allows approximations to be used in place of exact quantities, while still converging to the exact result. As illustrated in the thesis, the proposed algorithm enables efficient rendering of scenes with glossy transfer and heterogenous participating media.
Visual Texture
DOWNLOAD
Author : Michal Haindl
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-01-18
Visual Texture written by Michal Haindl and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-01-18 with Computers categories.
This book surveys the state of the art in multidimensional, physically-correct visual texture modeling. Features: reviews the entire process of texture synthesis, including material appearance representation, measurement, analysis, compression, modeling, editing, visualization, and perceptual evaluation; explains the derivation of the most common representations of visual texture, discussing their properties, advantages, and limitations; describes a range of techniques for the measurement of visual texture, including BRDF, SVBRDF, BTF and BSSRDF; investigates the visualization of textural information, from texture mapping and mip-mapping to illumination- and view-dependent data interpolation; examines techniques for perceptual validation and analysis, covering both standard pixel-wise similarity measures and also methods of visual psychophysics; reviews the applications of visual textures, from visual scene analysis in medical applications, to high-quality visualizations in the automotive industry.
Development And Characterization Of A Dispersion Encoded Method For Low Coherence Interferometry
DOWNLOAD
Author : Christopher Taudt
language : en
Publisher: Springer Nature
Release Date : 2021-11-16
Development And Characterization Of A Dispersion Encoded Method For Low Coherence Interferometry written by Christopher Taudt and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-16 with Science categories.
This Open Access book discusses an extension to low-coherence interferometry by dispersion-encoding. The approach is theoretically designed and implemented for applications such as surface profilometry, polymeric cross-linking estimation and the determination of thin-film layer thicknesses. During a characterization, it was shown that an axial measurement range of 79.91 μm with an axial resolution of 0.1 nm is achievable. Simultaneously, profiles of up to 1.5 mm in length were obtained in a scan-free manner. This marked a significant improvement in relation to the state-of-the-art in terms of dynamic range. Also, the axial and lateral measurement range were decoupled partially while functional parameters such as surface roughness were estimated. The characterization of the degree of polymeric cross-linking was performed as a function of the refractive index. It was acquired in a spatially-resolved manner with a resolution of 3.36 x 10-5. This was achieved by the development of a novel mathematical analysis approach.
Acquisition And Modeling Of Material Appearance
DOWNLOAD
Author : Wai Kit Addy Ngan
language : en
Publisher:
Release Date : 2006
Acquisition And Modeling Of Material Appearance written by Wai Kit Addy Ngan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
(Cont.) We also propose a new method that significantly reduces measurement cost and time of the bidirectional texture function (BTF) through a statistical characterization of texture appearance. Our reconstruction method combines naturally aligned images and alignment-insensitive statistics to produce visually plausible results. We demonstrate our acquisition system which is able to capture intricate materials like fabrics in less than ten minutes with commodity equipments. In addition, we present a method to facilitate effective user design in the space of material appearance. We introduce a metric in the space of reflectance which corresponds roughly to perceptual measures. The main idea of our approach is to evaluate reflectance differences in terms of their induced rendered images, instead of the reflectance function itself defined in the angular domains. With rendered images, we show that even a simple computational metric can provide good perceptual spacing and enable intuitive navigation of the reflectance space.
Model For Residential House Element And Material Selection By Neutrosophic Multimoora Method
DOWNLOAD
Author : Edmundas Kazimieras Zavadskas
language : en
Publisher: Infinite Study
Release Date :
Model For Residential House Element And Material Selection By Neutrosophic Multimoora Method written by Edmundas Kazimieras Zavadskas and has been published by Infinite Study this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
This article aims to create a theoretical evaluation model based on decision support methods for the residential house construction materials and elements selection.
State Of The Art Sensors Technology In Spain 2017 Volume 1
DOWNLOAD
Author : Gonzalo Pajares Martinsanz
language : en
Publisher: MDPI
Release Date : 2018-05-22
State Of The Art Sensors Technology In Spain 2017 Volume 1 written by Gonzalo Pajares Martinsanz and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-22 with Electronic books categories.
This book is a printed edition of the Special Issue "State-of-the-Art Sensors Technology in Spain 2017" that was published in Sensors
Computer Vision Computer Graphics Collaboration Techniques
DOWNLOAD
Author : André Gagalowicz
language : en
Publisher: Springer
Release Date : 2007-06-06
Computer Vision Computer Graphics Collaboration Techniques written by André Gagalowicz and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-06-06 with Computers categories.
This book constitutes the refereed proceedings of the Third International Conference on Computer Vision/Computer Graphics collaboration techniques involving image analysis/synthesis approaches MIRAGE 2007, held in Rocquencourt, France, in March 2007. The 55 revised full cover foundational, methodological, and application issues.
Functional Imaging And Modeling Of The Heart
DOWNLOAD
Author : Hans van Assen
language : en
Publisher: Springer
Release Date : 2015-06-20
Functional Imaging And Modeling Of The Heart written by Hans van Assen and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-06-20 with Computers categories.
This book constitutes the refereed proceedings of the 8th International Conference on Functional Imaging and Modeling of the Heart, held in Maastricht, The Netherlands, in June 2015. The 54 revised full papers were carefully reviewed and selected from 72 submissions. The focus of the papers is on following topics: function; imaging; models of mechanics; and models of electrophysiology.