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Physics-based animation is commonplace in animated feature films and even special effects for live-action movies. Think about a recent movie and there will be some sort of special effects such as explosions or virtual worlds. Cloth simulation is no different and is ubiquitous because most virtual characters (hopefully!) wear some sort of clothing. The focus of this book is physics-based cloth simulation. We start by providing background information and discuss a range of applications. This book provides explanations of multiple cloth simulation techniques. More specifically, we start with the most simple explicitly integrated mass-spring model and gradually work our way up to more complex and commonly used implicitly integrated continuum techniques in state-of-the-art implementations. We give an intuitive explanation of the techniques and give additional information on how to efficiently implement them on a computer. This book discusses explicit and implicit integration schemes for cloth simulation modeled with mass-spring systems. In addition to this simple model, we explain the more advanced continuum-inspired cloth model introduced in the seminal work of Baraff and Witkin [1998]. This method is commonly used in industry. We also explain recent work by Liu et al. [2013] that provides a technique to obtain fast simulations. In addition to these simulation approaches, we discuss how cloth simulations can be art directed for stylized animations based on the work of Wojan et al. [2016]. Controllability is an essential component of a feature animation film production pipeline. We conclude by pointing the reader to more advanced techniques.
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This book provides beginners in computer graphics and related fields a guide to the concepts, models, and technologies for realistic rendering of material appearance. It provides a complete and thorough overview of reflectance models and acquisition setups, along with providing a selection of the available tools to explore, visualize, and render the reflectance data. Reflectance models are under continuous development, since there is still no straightforward solution for general material representations. Every reflectance model is specific to a class of materials. Hence, each has strengths and weaknesses, which the book highlights in order to help the reader choose the most suitable model for any purpose. The overview of the acquisition setups will provide guidance to a reader who needs to acquire virtual materials and will help them to understand which measurement setup can be useful for a particular purpose, while taking into account the performance and the expected cost derived from the required components. The book also describes several recent open source software solutions, useful for visualizing and manipulating a wide variety of reflectance models and data.
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This book explores the visualization of three-dimensional non-Euclidean spaces using ray-tracing techniques in Graphics Processing Unit (GPU). This is a trending topic in mathematical visualization that combines the mathematics areas of geometry and topology, with visualization concepts of computer graphics. Several conditions made this a special moment for such topic. On one hand, the development of mathematical research, computer graphics, and algorithms have provided the necessary theoretical framework. On the other hand, the evolution of the technologies and media allows us to be immersed in three-dimensional spaces using Virtual Reality. The content of this book serves both experts in the areas and students. Although this is a short book, it is self-contained since it considers all the ideas, motivations, references, and intuitive explanations of the required fundamental concepts.
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This volume LNCS 14243 constitutes the refereed proceedings of the Second International Workshop, CMMCA 2023, Held in Conjunction with MICCAI 2023, on October 8, 2023, in Vancouver, BC, Canada. The 17 full papers presented were carefully reviewed and selected from 25 submissions. The conference focuses on the discovery of cutting-edge techniques addressing trends and challenges in theoretical, computational, and applied aspects of mathematical cancer data analysis.
Image processing --- Computer vision. --- Computer Imaging, Vision, Pattern Recognition and Graphics. --- Digital techniques. --- Cancer --- Imaging.
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This book consists of full papers presented in the 2nd workshop of ”Medical Image Learning with Noisy and Limited Data (MILLanD)” held in conjunction with the 26th International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI 2023). The 24 full papers presented were carefully reviewed and selected from 38 submissions. The conference focused on challenges and limitations of current deep learning methods applied to limited and noisy medical data and present new methods for training models using such imperfect data.
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This book consists of full papers presented in the 2nd workshop of ”Medical Image Learning with Noisy and Limited Data (MILLanD)” held in conjunction with the 26th International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI 2023). The 24 full papers presented were carefully reviewed and selected from 38 submissions. The conference focused on challenges and limitations of current deep learning methods applied to limited and noisy medical data and present new methods for training models using such imperfect data.
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In „Computergrafik und Bildverarbeitung“ finden Sie alles, was Sie für Studium und Praxis über Generierung und Verarbeitung von digitalen Bildern wissen möchten und wie Sie es anwenden. Das erfolgreiche didaktische Konzept wurde weiterentwickelt und liegt ab dieser dritten Auflage in zwei Teilen vor. „Computergrafik und Bildverarbeitung“ Band I führt den Leser durch die Themen der Computergrafik. Dabei werden das alte und neue OpenGL parallel dargestellt, um einen guten Zugang für Einsteiger und einen leichteren Übergang für Fortgeschrittene zu gewährleisten. Profitieren Sie von dem kostenlosen Online-Service: Bildverarbeitungswerkzeuge, Beispiel-Software und interaktive Vorlesungen (als HTML-Seiten mit Java-Applets und Praktikumsaufgaben). Der Inhalt Interaktive 3D-Computergrafik – OpenGL – Geometrische Grundobjekte – Koordinatensysteme und Transformationen – Verdeckung – Farben - Beleuchtungsmodelle – Textur-Mapping – Schatten – Szenengraphen – Cull-Algorithmen – GPU Programmierung mit CUDA und OpenCL Die Zielgruppe Studenten der Informatik und der Ingenieurwissenschaften (FH und Uni) Praktiker, die sich beruflich mit Methoden der Computergrafik und Bildverarbeitung befassen Die Autoren Prof. Dr. Alfred Nischwitz, Hochschule München, industriell erfahrener Experte auf den Gebieten Computergrafik, Bildverarbeitung und Mustererkennung. Prof. Dr. Max Fischer, Hochschule München, international ausgewiesener Forscher auf den Gebieten Robotik, Computer Vision und Embedded Systems. Prof. Dr. Peter Haberäcker, Hochschule München, Pionier auf dem Gebiet Bildverarbeitung/Mustererkennung, hat dazu bereits zwei Lehrbücher geschrieben. Prof. Dr. Gudrun Socher, Hochschule München, Professorin für Mensch-Maschine-Interaktion mit internationaler Erfahrung in Computer Vision und Mustererkennung.
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This book covers dynamic simulation of deformable objects, which is one of the most challenging tasks in computer graphics and visualization. It focuses on the simulation of deformable models with anisotropic materials, one of the less common approaches in the existing research. Both physically-based and geometrically-based approaches are examined. The authors start with transversely isotropic materials for the simulation of deformable objects with fibrous structures. Next, they introduce a fiber-field incorporated corotational finite element model (CLFEM) that works directly with a constitutive model of transversely isotropic material. A smooth fiber-field is used to establish the local frames for each element. To introduce deformation simulation for orthotropic materials, an orthotropic deformation controlling frame-field is conceptualized and a frame construction tool is developed for users to define the desired material properties. The orthotropic frame-field is coupled with the CLFEM model to complete an orthotropic deformable model. Finally, the authors present an integrated real-time system for animation of skeletal characters with anisotropic tissues. To solve the problems of volume distortion and high computational costs, a strain-based PBD framework for skeletal animation is explained; natural secondary motion of soft tissues is another benefit. The book is written for those researchers who would like to develop their own algorithms. The key mathematical and computational concepts are presented together with illustrations and working examples. It can also be used as a reference book for graduate students and senior undergraduates in the areas of computer graphics, computer animation, and virtual reality. Academics, researchers, and professionals will find this to be an exceptional resource.
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Krebs ist eines der weitverbreitetsten Krankheitsbilder im Erwachsenenalter und steht zunehmend im Zentrum unterschiedlicher wissenschaftlicher Disziplinen. Alina Toma befasst sich mit der mathematischen Modellierung der Progression des Glioblastoms. Für eine realitätsnahe Simulation des zellulären Wachstums des Tumors berücksichtigt sie Umgebungsfaktoren wie Nährstoffe und die extrazelluläre Matrix. Sie betrachtet neben Migration und Proliferation von Tumorzellen weitere Zellstatus wie Zelltod oder Ruhezustand. Die Autorin integriert zum ersten Mal die Immunzellen des zentralen Nervensystems in ein Glioblastom-Wachstumsmodell, wobei sie relevante in-vitro Experimente zur Validierung des Modells hinzufügt. Die Arbeit führt in die Strahlentherapie und Multiskalenmodellierung ein und greift die wichtigen Aspekte der Tumormikroumgebung auf, um so eine realistische Darstellung der Wachstumsprozesse abzubilden. Der Inhalt Nachbarschaftsmodelle Migrationsmodelle Avaskuläres Tumorwachstum Interaktionen mit der Mikrogliazelle Die Zielgruppen Wissenschaftler, Dozenten und Studenten der (angewandten) Mathematik und Ingenieurwissenschaften sowie Biologen mit Interesse an mathematischen Fragestellungen Anwender aus dem Bereich der Modellierung und Simulation Die Autorin Alina Toma (verh. Gollmer) promovierte als wissenschaftliche Mitarbeiterin bei Prof. Dr. Thorsten M. Buzug am Institut für Medizintechnik der Universität zu Lübeck. Der Herausgeber Die Reihe Aktuelle Forschung Medizintechnik wird herausgegeben von Prof. Dr. Thorsten M. Buzug.
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This synthesis lecture presents an intuitive introduction to the mathematics of motion and deformation in computer graphics. Starting with familiar concepts in graphics, such as Euler angles, quaternions, and affine transformations, we illustrate that a mathematical theory behind these concepts enables us to develop the techniques for efficient/effective creation of computer animation. This book, therefore, serves as a good guidepost to mathematics (differential geometry and Lie theory) for students of geometric modeling and animation in computer graphics. Experienced developers and researchers will also benefit from this book, since it gives a comprehensive overview of mathematical approaches that are particularly useful in character modeling, deformation, and animation.
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