Material Appearance Modeling: A Data-Coherent Approach

Material Appearance Modeling: A Data-Coherent Approach

Author: Yue Dong

Publisher: Springer Science & Business Media

Published: 2013-06-03

Total Pages: 184

ISBN-13: 3642357776

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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.


Book Synopsis Material Appearance Modeling: A Data-Coherent Approach by : Yue Dong

Download or read book Material Appearance Modeling: A Data-Coherent Approach written by Yue Dong and published by Springer Science & Business Media. This book was released on 2013-06-03 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.


Physically Based Rendering of Synthetic Objects in Real Environments

Physically Based Rendering of Synthetic Objects in Real Environments

Author: Joel Kronander

Publisher: Linköping University Electronic Press

Published: 2015-11-10

Total Pages: 135

ISBN-13: 9176859126

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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.


Book Synopsis Physically Based Rendering of Synthetic Objects in Real Environments by : Joel Kronander

Download or read book Physically Based Rendering of Synthetic Objects in Real Environments written by Joel Kronander and published by Linköping University Electronic Press. This book was released on 2015-11-10 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Visual Texture

Author: Michal Haindl

Publisher: Springer Science & Business Media

Published: 2013-01-18

Total Pages: 304

ISBN-13: 1447149025

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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.


Book Synopsis Visual Texture by : Michal Haindl

Download or read book Visual Texture written by Michal Haindl and published by Springer Science & Business Media. This book was released on 2013-01-18 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Development and Characterization of a Dispersion-Encoded Method for Low-Coherence Interferometry

Author: Christopher Taudt

Publisher: Springer Nature

Published: 2021-11-16

Total Pages: 180

ISBN-13: 3658359269

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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.


Book Synopsis Development and Characterization of a Dispersion-Encoded Method for Low-Coherence Interferometry by : Christopher Taudt

Download or read book Development and Characterization of a Dispersion-Encoded Method for Low-Coherence Interferometry written by Christopher Taudt and published by Springer Nature. This book was released on 2021-11-16 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.


Model for residential house element and material selection by neutrosophic MULTIMOORA method

Model for residential house element and material selection by neutrosophic MULTIMOORA method

Author: Edmundas Kazimieras Zavadskas

Publisher: Infinite Study

Published:

Total Pages: 10

ISBN-13:

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This article aims to create a theoretical evaluation model based on decision support methods for the residential house construction materials and elements selection.


Book Synopsis Model for residential house element and material selection by neutrosophic MULTIMOORA method by : Edmundas Kazimieras Zavadskas

Download or read book Model for residential house element and material selection by neutrosophic MULTIMOORA method written by Edmundas Kazimieras Zavadskas and published by Infinite Study. This book was released on with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

State-of-the-Art Sensors Technology in Spain 2017 Volume 1

Author: Gonzalo Pajares Martinsanz

Publisher: MDPI

Published: 2018-05-22

Total Pages: 403

ISBN-13: 3038429139

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This book is a printed edition of the Special Issue "State-of-the-Art Sensors Technology in Spain 2017" that was published in Sensors


Book Synopsis State-of-the-Art Sensors Technology in Spain 2017 Volume 1 by : Gonzalo Pajares Martinsanz

Download or read book State-of-the-Art Sensors Technology in Spain 2017 Volume 1 written by Gonzalo Pajares Martinsanz and published by MDPI. This book was released on 2018-05-22 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "State-of-the-Art Sensors Technology in Spain 2017" that was published in Sensors


Materials Science and Engineering. Volume I

Materials Science and Engineering. Volume I

Author: Abbas Hamrang

Publisher: CRC Press

Published: 2016-04-19

Total Pages: 300

ISBN-13: 148223937X

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This volume highlights the latest developments and trends in advanced non-classical materials and structures. It presents the developments of advanced materials and respective tools to characterize and predict the material properties and behavior. It also includes original, theoretical, and important experimental results that use non-routine method


Book Synopsis Materials Science and Engineering. Volume I by : Abbas Hamrang

Download or read book Materials Science and Engineering. Volume I written by Abbas Hamrang and published by CRC Press. This book was released on 2016-04-19 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume highlights the latest developments and trends in advanced non-classical materials and structures. It presents the developments of advanced materials and respective tools to characterize and predict the material properties and behavior. It also includes original, theoretical, and important experimental results that use non-routine method


Computer Vision/Computer Graphics Collaboration Techniques

Computer Vision/Computer Graphics Collaboration Techniques

Author: André Gagalowicz

Publisher: Springer

Published: 2007-06-06

Total Pages: 620

ISBN-13: 354071457X

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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.


Book Synopsis Computer Vision/Computer Graphics Collaboration Techniques by : André Gagalowicz

Download or read book Computer Vision/Computer Graphics Collaboration Techniques written by André Gagalowicz and published by Springer. This book was released on 2007-06-06 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Functional Imaging and Modeling of the Heart

Author: Hans van Assen

Publisher: Springer

Published: 2015-06-20

Total Pages: 493

ISBN-13: 3319203096

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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.


Book Synopsis Functional Imaging and Modeling of the Heart by : Hans van Assen

Download or read book Functional Imaging and Modeling of the Heart written by Hans van Assen and published by Springer. This book was released on 2015-06-20 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.


Multisensor Data Fusion

Multisensor Data Fusion

Author: Hassen Fourati

Publisher: CRC Press

Published: 2017-12-19

Total Pages: 639

ISBN-13: 1482263750

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Multisensor Data Fusion: From Algorithms and Architectural Design to Applications covers the contemporary theory and practice of multisensor data fusion, from fundamental concepts to cutting-edge techniques drawn from a broad array of disciplines. Featuring contributions from the world’s leading data fusion researchers and academicians, this authoritative book: Presents state-of-the-art advances in the design of multisensor data fusion algorithms, addressing issues related to the nature, location, and computational ability of the sensors Describes new materials and achievements in optimal fusion and multisensor filters Discusses the advantages and challenges associated with multisensor data fusion, from extended spatial and temporal coverage to imperfection and diversity in sensor technologies Explores the topology, communication structure, computational resources, fusion level, goals, and optimization of multisensor data fusion system architectures Showcases applications of multisensor data fusion in fields such as medicine, transportation's traffic, defense, and navigation Multisensor Data Fusion: From Algorithms and Architectural Design to Applications is a robust collection of modern multisensor data fusion methodologies. The book instills a deeper understanding of the basics of multisensor data fusion as well as a practical knowledge of the problems that can be faced during its execution.


Book Synopsis Multisensor Data Fusion by : Hassen Fourati

Download or read book Multisensor Data Fusion written by Hassen Fourati and published by CRC Press. This book was released on 2017-12-19 with total page 639 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multisensor Data Fusion: From Algorithms and Architectural Design to Applications covers the contemporary theory and practice of multisensor data fusion, from fundamental concepts to cutting-edge techniques drawn from a broad array of disciplines. Featuring contributions from the world’s leading data fusion researchers and academicians, this authoritative book: Presents state-of-the-art advances in the design of multisensor data fusion algorithms, addressing issues related to the nature, location, and computational ability of the sensors Describes new materials and achievements in optimal fusion and multisensor filters Discusses the advantages and challenges associated with multisensor data fusion, from extended spatial and temporal coverage to imperfection and diversity in sensor technologies Explores the topology, communication structure, computational resources, fusion level, goals, and optimization of multisensor data fusion system architectures Showcases applications of multisensor data fusion in fields such as medicine, transportation's traffic, defense, and navigation Multisensor Data Fusion: From Algorithms and Architectural Design to Applications is a robust collection of modern multisensor data fusion methodologies. The book instills a deeper understanding of the basics of multisensor data fusion as well as a practical knowledge of the problems that can be faced during its execution.