Download or read book Line Drawings from 3D Models written by Aaron Hertzmann and published by . This book was released on with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: This tutorial describes the geometry and algorithms for generating line drawings from 3D models, focusing on occluding contours. The geometry of occluding contours on meshes and on smooth surfaces is described in detail, together with algorithms for extracting contours, computing their visibility, and creating stylized renderings and animations. Exact methods and hardware-accelerated fast methods are both described, and the trade-offs between different methods are discussed. The tutorial brings together and organizes material that, at present, is scattered throughout the literature. It also includes some novel explanations, and implementation tips. A thorough survey of the field of non-photorealistic 3D rendering is also included, covering other kinds of line drawings and artistic shading.
Download or read book Line Drawings from 3D Models written by PIERRE. HERTZMANN BENARD (AARON.) and published by . This book was released on 2019-09-11 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drawing is the starting point for many kinds of tasks, for everyone from children making pictures to professional architects sketching ideas. Drawing seems to be fundamentally connected to how we represent the world visually. Most computer graphics focuses on realistic visual simulation, but over the past few decades, line drawing algorithms have matured, providing the ability to automatically create reasonable line drawings from 3D geometry. This tutorial provides a detailed guide to the mathematical theory and computer algorithms for line drawing of 3D objects. It focuses on the curves known as contours as they are the most important curves for line drawing of 3D surfaces. The authors describe the different algorithms required to compute and render these curves, before going on to explain boundary curves and surface-surface intersection curves. The tutorial concludes with other topics in 3D non-photorealistic rendering including: other types of curves, stroke rendering, and non-photorealistic shading. Line Drawings from 3D Models: A Tutorial is a concise, yet comprehensive, introduction to an increasingly important topic in computer graphics. The extensive bibliography is invaluable for readers wishing to further their own research in the area.
Download or read book Line Drawings of 3D Models written by Forrester H. Cole and published by . This book was released on 2009 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book First Principles of Line Drawings written by Caroline Chan and published by . This book was released on 2021 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents an unsupervised method for creating line drawings from photographs or 3D models. Current methods often rely on high quality paired datasets to automate the creation of line drawings. We observe that line drawings are encodings of scene information that convey 3D shape and semantic meaning. We bake these observations into a set of first principle objectives and train an image translation network to map 3D objects into line drawings. We also explore generation of new styles of line drawings through a novel style confusion loss which averages and combines elements from different styles in a structured manner. User studies and quantitative experiments validate that our method encodes geometry and semantic information into line drawings and improves overall drawing quality.
Download or read book Drawing Shortcuts written by Jim Leggitt and published by John Wiley & Sons. This book was released on 2015-06-12 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: The updated edition of a contemporary approach to merging traditional hand drawing methods with 2-dimensional and 3-dimensional digital visualization tools. Jim Leggitt?s Drawing Shortcuts shows how communicating with hand drawings combined with digital technology can be ingeniously simple, and this new edition makes an already popular technique even better. Completely expanded with new chapters and a wealth of supporting images, this Second Edition presents practical techniques for improving drawing efficiency and effectiveness by combining traditional hand drawing methods with the latest digital technology, including 3-D modeling with SketchUp. This book?s step-by-step approach will sharpen and streamline your techniques whether you draw for pleasure, school or your design profession. Easy-to-follow instructions cover every aspect from the basics of drawing?such as composition, color, shading, hatching, and perspective?up to the most current technologies Incorporates Google SketchUp, Google Earth, computer generated renderings, digital scanners and printers Features new visuals from accomplished drawing experts Special new ?Gallery? section highlights the creative process with step-by-step examples of drawings Complete coverage of the ?Overlay and Trace Method,? ?Simple Composite Method,? ?Advanced Composite Method,? and ?Digital Hybrid Drawings? New matrices show alternative drawing techniques for specific visual effects such as Linework and Shading, Selecting the Right Views, Perspectives and Paraline Drawings, Drawing Detail, Camera Lenses, and Drawing Tools Generously enriched with detailed process drawings, examples, and more than 500 full-color images, Drawing Shortcuts, Second Edition will have you creating top-quality drawings faster and more effectively.
Download or read book Interactive Sketch based Interfaces and Modelling for Design written by Alexandra Bonnici and published by CRC Press. This book was released on 2023-05-31 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sketching is a natural and intuitive communication tool used for expressing concepts and ideas that are difficult to communicate through text or speech alone. In design applications, drawings are used at various stages of the design process: from the early concept drawings scribbled on a piece of paper to immersive interactions in which users manipulate and adjust the 3D form of an object in virtual or augmented reality environments. This variety in drawing activities brings about the need for different interpretation strategies that support not only the sketching activity itself, but also allow sketch-based interactions, such as sketch-based queries, to take place. In this book, we explore the different drawing approaches used in design and the algorithms required for processing and interpreting the different sketches and drawings in design. The book is divided into two parts. The first part focuses on sketching in the 2D domain. This includes the digitization of offline and paperbased sketches, techniques for online sketch recognition, observations of user drawing habits, algorithms for inferring depth from 2D drawings, as well as non-photorealistic rendering techniques that are then applied to sketch-based queries. The second part of the book focuses on 3D sketching in virtual or augmented reality spaces. Here, we present the processing and rendering of the 3D strokes, the different interaction devices available for 3D sketching, and look at different applications where immersive 3D sketching has been applied with success.
Download or read book Machine Interpretation of Line Drawing Images written by Sergey Ablameyko and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Line drawing interpretation is a challenging area with enormous practical potential. At present, many companies throughout the world invest large amounts of money and human resource in the input of paper drawings into computers. The technology needed to produce an image of a drawing is widely available, but the transformation of these images into more useful forms is an active field of research and development. Machine Interpretation of Line Drawing Images - describes the theory and practice underlying the computer interpretation of line drawing images and - shows how line drawing interpretation systems can be developed. The authors show how many of the problems can be tackled and provide a thorough overview of the processes underpinning the interpretation of images of line drawings.
Download or read book Line Drawing Interpretation written by Martin Cooper and published by Springer Science & Business Media. This book was released on 2010-06-07 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the author’s considerable research, this book contains state-of-the-art reviews of work in drawing interpretation and discrete optimization. It covers both drawings of polyhedral objects as well as complex curved objects.
Download or read book The SketchUp Workflow for Architecture written by Michael Brightman and published by John Wiley & Sons. This book was released on 2018-06-25 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide for leveraging SketchUp for any project size, type, or style. New construction or renovation. The revised and updated second edition of The SketchUp Workflow for Architecture offers guidelines for taking SketchUp to the next level in order to incorporate it into every phase of the architectural design process. The text walks through each step of the SketchUp process from the early stages of schematic design and model organization for both renovation and new construction projects to final documentation and shows how to maximize the LayOut toolset for drafting and presentations. Written by a noted expert in the field, the text is filled with tips and techniques to access the power of SketchUp and its related suite of tools. The book presents a flexible workflow method that helps to make common design tasks easier and gives users the information needed to incorporate varying degrees of SketchUp into their design process. Filled with best practices for organizing projects and drafting schematics, this resource also includes suggestions for working with LayOut, an underused but valuable component of SketchUp Pro. In addition, tutorial videos compliment the text and clearly demonstrate more advanced methods. This important text: Presents intermediate and advanced techniques for architects who want to use SketchUp in all stages of the design process Includes in-depth explanations on using the LayOut tool set that contains example plans, details, sections, presentations, and other information Updates the first edition to reflect the changes to SketchUp 2018 and the core functionalities, menus, tools, inferences, arc tools, reporting, and much more Written by a SketchUp authorized trainer who has an active online platform and extensive connections within the SketchUp community Contains accompanying tutorial videos that demonstrate some of the more advanced SketchUp tips and tricks Written for professional architects, as well as professionals in interior design and landscape architecture, The SketchUp Workflow for Architecture offers a revised and updated resource for using SketchUp in all aspects of the architectural design process.
Download or read book Imaginative Realism written by James Gurney and published by Andrews McMeel Publishing. This book was released on 2009-10-20 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: A examination of time-tested methods used by artists since the Renaissance to make realistic pictures of imagined things.
Download or read book Architectural Graphics written by Francis D. K. Ching and published by . This book was released on 1975 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The completely updated, illustrated bestseller on architectural graphics with over 500,000 copies sold Architectural Graphics presents a wide range of basic graphic tools and techniques designers use to communicate architectural ideas. Expanding upon the wealth of illustrations and information that have made this title a classic, this Fourth Edition provides expanded and updated coverage of drawing materials, multiview drawings, paraline drawings, and perspective drawings. Also new to this edition is the author's unique incorporation of digital technology into his successful methods. While covering essential drawing principles, this book presents: approaches to drawing section views of building interiors, methods for drawing modified perspectives, techniques for creating accurate shade and shadows, expert styles of freehand sketching and diagramming, and much more.
Download or read book Drawing from the Model written by Frank Melendez and published by John Wiley & Sons. This book was released on 2019-04-16 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridges traditional and contemporary methods of creating architectural design drawings and 3D models through digital tools and computational processes. Drawing from the Model: Fundamentals of Digital Drawing, 3D Modeling, and Visual Programming in Architectural Design presents architectural design students, educators, and professionals with a broad overview of traditional and contemporary architectural representation methods. The book offers insights into developments in computing in relation to architectural drawing and modeling, by addressing historical analog methods of architectural drawing based on descriptive geometry and projection, and transitioning to contemporary digital methods based on computational processes and emerging technologies. Drawing from the Model offers digital tools, techniques, and workflows for producing architectural design drawings (plans, sections, elevations, axonometrics, and perspectives), using contemporary 2D drawing and 3D modeling design software. Visual programming is introduced to address topics of parametric modeling, algorithmic design, computational simulations, physical computing, and robotics. The book focuses on digital design software used in higher education and industry, including Robert McNeel & Associates Rhinoceros® (Rhino 6 for Windows), Grasshopper®, Adobe Illustrator® CC, and Arduino, and features an appendix filled with 10 design drawing and 3D modeling exercises intended as educational and pedagogical examples for readers to practice and/or teach workflows that are addresses in the book. Bridges analog hand-drawing and digital design drawing techniques Provides comprehensive coverage of architectural representation, computing, computer-aided drafting, and 3D modeling tools, techniques, and workflows, for contemporary architectural design drawing aesthetics and graphics. Introduces topics of parametric modeling, algorithmic design, computational simulation, physical computing, and robotics through visual programming environments and processes. Features tutorial-based instruction using the latest versions of Rhinoceros® (Rhino 6 for Windows), Grasshopper®, Adobe Illustrator® CC, and Arduino.
Download or read book Machine Interpretation of Line Drawings written by Kōkichi Sugihara and published by MIT Press (MA). This book was released on 1986 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book solves a long-standing problem in computer vision, the interpretation of line drawings and, in doing so answers many of the concerns raised by this problem, particularly with regard to errors in the placement of lines and vertices in the images. Sugihara presents a computational mechanism that functionally mimics human perception in being able to generate three-dimensional descriptions of objects from two-dimensional line drawings. The objects considered are polyhedrons or solid objects bounded by planar faces, and the line drawings are single-view pictures of these objects. Sugihara's mechanism has several potential applications. It can facilitate man-machine communication by extracting object structures automatically from pictures drawn by a designer, which can be particularly useful in the computer-aided design of geometric objects, such as mechanical parts and buildings. It can also be used in the intermediate stage of computer vision systems used to obtain and analyze images in the outside world. The computational mechanism itself is not accompanied by a large database but is composed of several simple procedures based on linear algebra and combinatorial theory. Contents:Introduction. Candidates for Spatial Interpretation. Discrimination between Correct and Incorrect Pictures. Correctness of HiddenPart-Drawn Pictures. Algebraic Structures of Line Drawings. Combinatorial Structures of Line Drawings. Overcoming Superstrictness. Algorithmic Aspects of Generic Reconstructibility. Specification of Unique Shapes. Recovery of Shape from Surface Information. Polyhedrons and Rigidity. Kokichi Sugihara is Professor in the Department of Mathematical Engineering and instrumentation Physics, Faculty of Engineering, the University of Tokyo, Tokyo, Japan. Machine interpretation of Line Drawingsis included in The MIT Press Series in Artificial Intelligence, edited by Patrick Henry Winston and Michael Brady.
Download or read book Image and Video Based Artistic Stylisation written by Paul Rosin and published by Springer Science & Business Media. This book was released on 2012-10-29 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-photorealistic rendering (NPR) is a combination of computer graphics and computer vision that produces renderings in various artistic, expressive or stylized ways such as painting and drawing. This book focuses on image and video based NPR, where the input is a 2D photograph or a video rather than a 3D model. 2D NPR techniques have application in areas as diverse as consumer and professional digital photography and visual effects for TV and film production. The book covers the full range of the state of the art of NPR with every chapter authored by internationally renowned experts in the field, covering both classical and contemporary techniques. It will enable both graduate students in computer graphics, computer vision or image processing and professional developers alike to quickly become familiar with contemporary techniques, enabling them to apply 2D NPR algorithms in their own projects.
Download or read book Cryptology and Network Security written by Swee-Huay Heng and published by Springer. This book was released on 2010-11-30 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 9th International Conference on Cryptology and Network Security (CANS 2010) was held in Kuala Lumpur, Malaysia during December 12–14, 2010. The conference was co-organized by the Multimedia University (MMU), Malaysia, and Universiti Tunku Abdul Rahman (UTAR), Malaysia. The conference received 64 submissions from 22 countries, out of which 21 were accepted after a careful and thorough review process. These proceedings also contain abstracts for two invited talks. All submissions were reviewed by at least three members of the Program Committee; those authored or co-authored by Program Committee members were reviewed by at least ?ve reviewers. P- gram Committee members were allowed to use external reviewers to assist with their reviews, but remained responsible for the contents of the review and r- resenting papers during the discussion and decision making. The review phase was followed by a 10-day discussion phase in which each paper with at least one supporting review was discussed, additional experts were consulted where needed, and ?nal decisions were made. We thank the Program Committee for their hard work in selecting the p- gram. We also thank the external reviewers who assisted with reviewing and the CANS Steering Committee for their help. We thank Shai Halevi for use of his Web-Submission-and-Review software that was used for the electronic s- mission and review of the submitted papers, and we thank the International Association for Cryptologic Research (IACR) for Web hosting of the software.
Download or read book 3D Research Challenges in Cultural Heritage II written by Sander Münster and published by Springer. This book was released on 2016-10-24 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reflects a current state of the art and future perspectives of Digital Heritage focusing on not interpretative reconstruction and including as well as bridging practical and theoretical perspectives, strategies and approaches. Comprehensive key challenges are related to knowledge transfer and management as well as data handling within a interpretative digital reconstruction of Cultural Heritage including aspects of digital object creation, sustainability, accessibility, documentation, presentation, preservation and more general scientific compatibility. The three parts of the book provide an overview of a scope of usage scenarios, a current state of infrastructures as digital libraries, information repositories for an interpretative reconstruction of Cultural Heritage; highlight strategies, practices and principles currently used to ensure compatibility, reusability and sustainability of data objects and related knowledge within a 3D reconstruction work process on a day to day work basis; and show innovative concepts for the exchange, publishing and management of 3D objects and for inherit knowledge about data, workflows and semantic structures.
Download or read book Inference of 3D Shape from Line Drawings written by Seha Kim and published by . This book was released on 2015 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Line drawings lack direct 3D depth information, yet human vision easily perceives the 3D shapes from the contours. This dissertation investigates the mechanisms underlying the 3D shape inference from 2D line drawings. Here, four psychophysical experiments and a computational model for the 3D shape inference are discussed. Experiment 1 shows that human responses in depth judgments for line drawings reflect an underlying uncertainty of the perceived 3D shape, which is based on the complex interaction of local and global depth cues propagated from the contours. The computational model estimates the posterior probability of possible 3D surfaces from the contours of a line drawing in a Bayesian framework. The comparison of the model predictions and human depth responses for the line drawings from Experiment 1 demonstrates that the model accounts for the probabilistic 3D shape interpretation of line drawings by human vision. Experiment 2 shows that the reliability of a contour segment in a line drawing as a meaningful depth cue is conditional to the complex global context. Experiments 3 and 4 show that the certainty of depth difference perceptions from partial line drawings increases as more non-local visual cues are available. The experiments and the model offer a new perspective on 3D shape perception from line drawings as an inference based on the probability over possible 3D shapes given the contour cues, providing a broader understanding on the mechanisms of human vision.
