suggestive contours and abstracted shading Daniel Arias
|
|
- Lambert Morris
- 7 years ago
- Views:
Transcription
1 suggestive contours and abstracted shading Daniel Arias
2 LINES AND SHADES Shape, volume, shades and texture in drawing lines as nonphotorealistic rendering technique Luis Caballero
3 Suggestive contours Many lines in artistic representations came from contours. Suggestive contours: Features that are almost contours, that become contours in nearby views DeCarlo D, et al. Suggestive contours for conveying shape
4 Contours The contour generator is defined as points that lie on the surface and fulfill: n(p).v(p) = 0 p belongs to S, and n(p) is the unit surface normal at p, and v is the view vector v(p) = c-p (you draw a line, when the norm of the surface and the view vector are orthogonal.) DeCarlo D, et al. Suggestive contours for conveying shape
5 Towards suggestive contours, radial curvature Curvature of 0 are either an inflection point or a line. The radial curvature of surface S in p: intersect S with plane that a. construction of surface curvature. contains p, n(p), and a b. radial curvature (curvature in the direction w that, in this direction of the camera, w). case is the projection of v (p) in the plane. DeCarlo D, et al. Suggestive contours for conveying shape
6 SUGGESTIVE CONTOURS The curvature of surface S in p: intersect S with plane that contains p, n(p), and a direction w that, in this case is the projection of v(p) in the plane. Suggestive contours are curves along which the radial curvature is 0, and the surface bends away from the camera. a. values of the radial curvature b. type of line and position of the camera (contour, suggestive contour, or no line) DeCarlo D, et al. Suggestive contours for conveying shape
7 SUGGESTIVE CONTOURS Suggestive contours are: curves along which the radial curvature is 0, and the surface bends away from the camera. true contours in relatively nearby viewpoints: 1. from c': p and q' are contours, however from c, p is not (nor q'), but p appears suddenly when we move from c to c', p is a suggestive contour in c. DeCarlo D, et al. Suggestive contours for conveying shape
8 FORMAL DEFINITIONS 1. Set of points on the surface at which its radial curvature kr is 0, and the directional derivative of kr in the direction of w is positive: Dwkr > 0 2. Set of minima of n.v in the direction of w: Dw(n.v) = 0, and Dw (Dw (n.v)) > 0 3. The set of points on the contour generator of a nearby view point (of radial distance less than 90 degrees) that are not in a radial correspondence with points on the contour generators of any (radially) closer viewpoint. For definition 1. sometimes it is useful to reinforce the constrain with :
9 RESULTS Suggestive contours are related with contours in two ways:
10 Algorithms Object-space algorithm Found solution kr = 0, on entire mesh Detect contours on the mesh: Dwkr > 0 additional constrains (angle) Render the lines Image space algorithm identify suggestive contours directly from a rendered image. n(p).v(p) is approximated by rendering a smoothly shaded image with diffuse light source placed at the camera point. Detect suggestive contours by step valleys (stable minima of n. v/ v ) to identify the ridges and the valleys, it inspect neighborhood, places of high contrast are edges.
11
12 Line Drawings via abstracted shading Line drawing can be understood as an abstraction of the shaded image. Candidates: Dark-light boundaries Shading areas close to lines (image-space algorithm)
13 General solution 1. Render grayscale "tone image" (it already describe the illumination of the scene) 2. Blur image, and save it as texture memory 3. second pass, fragment shader to render dark lines in thin areas of dark tone. 4. render light zones into a different channel and with different thresholds. 5. combine dark and light images with a toon shaded base coat The resulting technique convey shape well, are temporal coherent in animation and can be render interactively.
14 Rendering lines two steps: 1. Render the tone image, from the frame buffer to a texture: GLSL fragment shader 2. detect ridges and valleys in the tone image: Base on standard representation (1 white, 0 black). If the height field surface normals point down, then on a ridge (highlight) the curvature with larger magnitude is a negative, while in a valley (dark line) it is positive. fits a polynomial to the pixels and neighbors, and then compute the curvature analytically (least square).
15 Rendering lines 3. Ridge searching (Opacity) grid 3x3 around pixel location, with spacing half distance line width w. Blur with a Gaussian kernel of size w. Base on distance to valleys or ridges and its first principal curvature the original pixel belongs to one of four cases: c=0 a, b and d: measure polynomial, move toward the ridge line, do it again, and set opacity 0 below a threshold or half line width, otherwise 1.
16 Rendering lines Tone edges are drawn base on the iterative process.
17 Rendering lines to smooth lines, it is set not one, but a lower and upper thresholds cl and cu. if c, cl stop. After iteration if c< cl opacity = 0, or 1 if c > cu. (c maximal curvature) between limits (c - cl)/(cu + cl) Drop off opacity with distance to the ridge line
18 Thanks
Image Processing and Computer Graphics. Rendering Pipeline. Matthias Teschner. Computer Science Department University of Freiburg
Image Processing and Computer Graphics Rendering Pipeline Matthias Teschner Computer Science Department University of Freiburg Outline introduction rendering pipeline vertex processing primitive processing
More informationBCC Multi Stripe Wipe
BCC Multi Stripe Wipe The BCC Multi Stripe Wipe is a similar to a Horizontal or Vertical Blind wipe. It offers extensive controls to randomize the stripes parameters. The following example shows a Multi
More informationMonash University Clayton s School of Information Technology CSE3313 Computer Graphics Sample Exam Questions 2007
Monash University Clayton s School of Information Technology CSE3313 Computer Graphics Questions 2007 INSTRUCTIONS: Answer all questions. Spend approximately 1 minute per mark. Question 1 30 Marks Total
More informationA Short Introduction to Computer Graphics
A Short Introduction to Computer Graphics Frédo Durand MIT Laboratory for Computer Science 1 Introduction Chapter I: Basics Although computer graphics is a vast field that encompasses almost any graphical
More informationIntroduction to Computer Graphics
Introduction to Computer Graphics Torsten Möller TASC 8021 778-782-2215 torsten@sfu.ca www.cs.sfu.ca/~torsten Today What is computer graphics? Contents of this course Syllabus Overview of course topics
More informationSilverlight for Windows Embedded Graphics and Rendering Pipeline 1
Silverlight for Windows Embedded Graphics and Rendering Pipeline 1 Silverlight for Windows Embedded Graphics and Rendering Pipeline Windows Embedded Compact 7 Technical Article Writers: David Franklin,
More informationA Study on SURF Algorithm and Real-Time Tracking Objects Using Optical Flow
, pp.233-237 http://dx.doi.org/10.14257/astl.2014.51.53 A Study on SURF Algorithm and Real-Time Tracking Objects Using Optical Flow Giwoo Kim 1, Hye-Youn Lim 1 and Dae-Seong Kang 1, 1 Department of electronices
More informationOutline. srgb DX9, DX10, XBox 360. Tone Mapping. Motion Blur
Outline srgb DX9, DX10, XBox 360 Tone Mapping Motion Blur srgb Outline srgb & gamma review Alpha Blending: DX9 vs. DX10 & XBox 360 srgb curve: PC vs. XBox 360 srgb Review Terminology: Color textures are
More informationVisualization and Feature Extraction, FLOW Spring School 2016 Prof. Dr. Tino Weinkauf. Flow Visualization. Image-Based Methods (integration-based)
Visualization and Feature Extraction, FLOW Spring School 2016 Prof. Dr. Tino Weinkauf Flow Visualization Image-Based Methods (integration-based) Spot Noise (Jarke van Wijk, Siggraph 1991) Flow Visualization:
More informationEnhanced LIC Pencil Filter
Enhanced LIC Pencil Filter Shigefumi Yamamoto, Xiaoyang Mao, Kenji Tanii, Atsumi Imamiya University of Yamanashi {daisy@media.yamanashi.ac.jp, mao@media.yamanashi.ac.jp, imamiya@media.yamanashi.ac.jp}
More informationEdge detection. (Trucco, Chapt 4 AND Jain et al., Chapt 5) -Edges are significant local changes of intensity in an image.
Edge detection (Trucco, Chapt 4 AND Jain et al., Chapt 5) Definition of edges -Edges are significant local changes of intensity in an image. -Edges typically occur on the boundary between two different
More informationINTRODUCTION TO RENDERING TECHNIQUES
INTRODUCTION TO RENDERING TECHNIQUES 22 Mar. 212 Yanir Kleiman What is 3D Graphics? Why 3D? Draw one frame at a time Model only once X 24 frames per second Color / texture only once 15, frames for a feature
More information3D Drawing. Single Point Perspective with Diminishing Spaces
3D Drawing Single Point Perspective with Diminishing Spaces The following document helps describe the basic process for generating a 3D representation of a simple 2D plan. For this exercise we will be
More informationColor correction in 3D environments Nicholas Blackhawk
Color correction in 3D environments Nicholas Blackhawk Abstract In 3D display technologies, as reviewers will say, color quality is often a factor. Depending on the type of display, either professional
More information3D Drawing. Single Point Perspective with Diminishing Spaces
3D Drawing Single Point Perspective with Diminishing Spaces The following document helps describe the basic process for generating a 3D representation of a simple 2D plan. For this exercise we will be
More informationH.Calculating Normal Vectors
Appendix H H.Calculating Normal Vectors This appendix describes how to calculate normal vectors for surfaces. You need to define normals to use the OpenGL lighting facility, which is described in Chapter
More informationVision based Vehicle Tracking using a high angle camera
Vision based Vehicle Tracking using a high angle camera Raúl Ignacio Ramos García Dule Shu gramos@clemson.edu dshu@clemson.edu Abstract A vehicle tracking and grouping algorithm is presented in this work
More informationConstrained curve and surface fitting
Constrained curve and surface fitting Simon Flöry FSP-Meeting Strobl (June 20, 2006), floery@geoemtrie.tuwien.ac.at, Vienna University of Technology Overview Introduction Motivation, Overview, Problem
More informationConvolution. 1D Formula: 2D Formula: Example on the web: http://www.jhu.edu/~signals/convolve/
Basic Filters (7) Convolution/correlation/Linear filtering Gaussian filters Smoothing and noise reduction First derivatives of Gaussian Second derivative of Gaussian: Laplacian Oriented Gaussian filters
More information3D Scanner using Line Laser. 1. Introduction. 2. Theory
. Introduction 3D Scanner using Line Laser Di Lu Electrical, Computer, and Systems Engineering Rensselaer Polytechnic Institute The goal of 3D reconstruction is to recover the 3D properties of a geometric
More informationConvex Mirrors. Ray Diagram for Convex Mirror
Convex Mirrors Center of curvature and focal point both located behind mirror The image for a convex mirror is always virtual and upright compared to the object A convex mirror will reflect a set of parallel
More informationROCKS AND MINERALS. Richard L. Yepez and Kathleen E. Yepez. An Art Skills Tutorial
ROCKS AND MINERALS Richard L. Yepez and Kathleen E. Yepez An Art Skills Tutorial Commissioned by the Center for Science Education Research at the University of Texas at Dallas Copyright 2005-2006 by Richard
More informationImplementation of Canny Edge Detector of color images on CELL/B.E. Architecture.
Implementation of Canny Edge Detector of color images on CELL/B.E. Architecture. Chirag Gupta,Sumod Mohan K cgupta@clemson.edu, sumodm@clemson.edu Abstract In this project we propose a method to improve
More informationDeferred Shading & Screen Space Effects
Deferred Shading & Screen Space Effects State of the Art Rendering Techniques used in the 3D Games Industry Sebastian Lehmann 11. Februar 2014 FREESTYLE PROJECT GRAPHICS PROGRAMMING LAB CHAIR OF COMPUTER
More informationPalmprint Recognition. By Sree Rama Murthy kora Praveen Verma Yashwant Kashyap
Palmprint Recognition By Sree Rama Murthy kora Praveen Verma Yashwant Kashyap Palm print Palm Patterns are utilized in many applications: 1. To correlate palm patterns with medical disorders, e.g. genetic
More informationLIST OF CONTENTS CHAPTER CONTENT PAGE DECLARATION DEDICATION ACKNOWLEDGEMENTS ABSTRACT ABSTRAK
vii LIST OF CONTENTS CHAPTER CONTENT PAGE DECLARATION DEDICATION ACKNOWLEDGEMENTS ABSTRACT ABSTRAK LIST OF CONTENTS LIST OF TABLES LIST OF FIGURES LIST OF NOTATIONS LIST OF ABBREVIATIONS LIST OF APPENDICES
More informationWe can display an object on a monitor screen in three different computer-model forms: Wireframe model Surface Model Solid model
CHAPTER 4 CURVES 4.1 Introduction In order to understand the significance of curves, we should look into the types of model representations that are used in geometric modeling. Curves play a very significant
More informationGraphic Design. Background: The part of an artwork that appears to be farthest from the viewer, or in the distance of the scene.
Graphic Design Active Layer- When you create multi layers for your images the active layer, or the only one that will be affected by your actions, is the one with a blue background in your layers palette.
More informationEnvironmental Remote Sensing GEOG 2021
Environmental Remote Sensing GEOG 2021 Lecture 4 Image classification 2 Purpose categorising data data abstraction / simplification data interpretation mapping for land cover mapping use land cover class
More informationGeometric Optics Converging Lenses and Mirrors Physics Lab IV
Objective Geometric Optics Converging Lenses and Mirrors Physics Lab IV In this set of lab exercises, the basic properties geometric optics concerning converging lenses and mirrors will be explored. The
More informationJohn F. Cotton College of Architecture & Environmental Design California Polytechnic State University San Luis Obispo, California JOHN F.
SO L I DMO D E L I N GAS A TO O LFO RCO N S T RU C T I N SO G LA REN V E LO PE S by John F. Cotton College of Architecture & Environmental Design California Polytechnic State University San Luis Obispo,
More informationDigital Photography Composition. Kent Messamore 9/8/2013
Digital Photography Composition Kent Messamore 9/8/2013 Photography Equipment versus Art Last week we focused on our Cameras Hopefully we have mastered the buttons and dials by now If not, it will come
More informationLezione 4: Grafica 3D*(II)
Lezione 4: Grafica 3D*(II) Informatica Multimediale Docente: Umberto Castellani *I lucidi sono tratti da una lezione di Maura Melotti (m.melotti@cineca.it) RENDERING Rendering What is rendering? Rendering
More information1. Abstract 2. Introduction 3. Algorithms and Techniques
MS PROJECT Virtual Surgery Piyush Soni under the guidance of Dr. Jarek Rossignac, Brian Whited Georgia Institute of Technology, Graphics, Visualization and Usability Center Atlanta, GA piyush_soni@gatech.edu,
More informationRobert Collins CSE598G. More on Mean-shift. R.Collins, CSE, PSU CSE598G Spring 2006
More on Mean-shift R.Collins, CSE, PSU Spring 2006 Recall: Kernel Density Estimation Given a set of data samples x i ; i=1...n Convolve with a kernel function H to generate a smooth function f(x) Equivalent
More informationStructural Axial, Shear and Bending Moments
Structural Axial, Shear and Bending Moments Positive Internal Forces Acting Recall from mechanics of materials that the internal forces P (generic axial), V (shear) and M (moment) represent resultants
More informationA Hybrid Method for Computing Apparent Ridges
Instituto Nacional de Matemática Pura e Aplicada. A Hybrid Method for Computing Apparent Ridges Eric Jardim Thesis Advisor: Luiz Henrique de Figueiredo February 2010 Abstract We propose a hybrid method
More informationObject tracking & Motion detection in video sequences
Introduction Object tracking & Motion detection in video sequences Recomended link: http://cmp.felk.cvut.cz/~hlavac/teachpresen/17compvision3d/41imagemotion.pdf 1 2 DYNAMIC SCENE ANALYSIS The input to
More informationCOMP175: Computer Graphics. Lecture 1 Introduction and Display Technologies
COMP175: Computer Graphics Lecture 1 Introduction and Display Technologies Course mechanics Number: COMP 175-01, Fall 2009 Meetings: TR 1:30-2:45pm Instructor: Sara Su (sarasu@cs.tufts.edu) TA: Matt Menke
More informationScan-Line Fill. Scan-Line Algorithm. Sort by scan line Fill each span vertex order generated by vertex list
Scan-Line Fill Can also fill by maintaining a data structure of all intersections of polygons with scan lines Sort by scan line Fill each span vertex order generated by vertex list desired order Scan-Line
More informationOBJECT TRACKING USING LOG-POLAR TRANSFORMATION
OBJECT TRACKING USING LOG-POLAR TRANSFORMATION A Thesis Submitted to the Gradual Faculty of the Louisiana State University and Agricultural and Mechanical College in partial fulfillment of the requirements
More informationCourse Overview. CSCI 480 Computer Graphics Lecture 1. Administrative Issues Modeling Animation Rendering OpenGL Programming [Angel Ch.
CSCI 480 Computer Graphics Lecture 1 Course Overview January 14, 2013 Jernej Barbic University of Southern California http://www-bcf.usc.edu/~jbarbic/cs480-s13/ Administrative Issues Modeling Animation
More informationThe Lighting Effects Filter
Appendix appendix E The Lighting Effects Filter The Lighting Effects filter is like a little program in itself. With this filter, you can create a wealth of different lighting effects, from making a particular
More informationSo, you want to make a photo-realistic rendering of the Earth from orbit, eh? And you want it to look just like what astronauts see from the shuttle
So, you want to make a photo-realistic rendering of the Earth from orbit, eh? And you want it to look just like what astronauts see from the shuttle or ISS (International Space Station). No problem. Just
More informationImage Segmentation and Registration
Image Segmentation and Registration Dr. Christine Tanner (tanner@vision.ee.ethz.ch) Computer Vision Laboratory, ETH Zürich Dr. Verena Kaynig, Machine Learning Laboratory, ETH Zürich Outline Segmentation
More informationArt Tuts Learn how to draw, animate, etc. Inkscape tutorials How to draw a candle. Candle
Art Tuts Learn how to draw, animate, etc Inkscape tutorials How to draw a candle Let s continue our How to draw in Inkscape series with a candle tutorial. At the beginning we'll use basic shapes, gradually
More informationIlluminating With HDRI
Illuminating With HDRI H DRI (High Dynamic Range Image) rendering is a method of illuminating a CG scene with a special type of bitmapped image that allows a far greater dynamic range of exposures (i.e.
More informationART 269 3D Animation Fundamental Animation Principles and Procedures in Cinema 4D
ART 269 3D Animation Fundamental Animation Principles and Procedures in Cinema 4D Components Tracks An animation track is a recording of a particular type of animation; for example, rotation. Some tracks
More informationVECTORAL IMAGING THE NEW DIRECTION IN AUTOMATED OPTICAL INSPECTION
VECTORAL IMAGING THE NEW DIRECTION IN AUTOMATED OPTICAL INSPECTION Mark J. Norris Vision Inspection Technology, LLC Haverhill, MA mnorris@vitechnology.com ABSTRACT Traditional methods of identifying and
More informationMachine vision systems - 2
Machine vision systems Problem definition Image acquisition Image segmentation Connected component analysis Machine vision systems - 1 Problem definition Design a vision system to see a flat world Page
More informationExpressive Line Drawings of Human Faces from Range Images
www.scichina.com info.scichina.com www.springerlink.com Expressive Line Drawings of Human Faces from Range Images Huang Yuezhu 1,2 Martin Ralph R. 2 Rosin Paul L. 2 Meng Xiangxu 1 Yang Chenglei 1 1 Department
More informationD animation. Advantages of 2-D2. Advantages of 3-D3. Related work. Key idea. Applications of Computer Graphics in Cel Animation.
Page 1 Applications of Computer Graphics in Cel Animation 3-D D and 2-D 2 D animation Adam Finkelstein Princeton University COS 426 Spring 2003 Homer 3-D3 Homer 2-D2 Advantages of 3-D3 Complex lighting
More informationHow To Make A Texture Map Work Better On A Computer Graphics Card (Or Mac)
Improved Alpha-Tested Magnification for Vector Textures and Special Effects Chris Green Valve (a) 64x64 texture, alpha-blended (b) 64x64 texture, alpha tested (c) 64x64 texture using our technique Figure
More informationCanny Edge Detection
Canny Edge Detection 09gr820 March 23, 2009 1 Introduction The purpose of edge detection in general is to significantly reduce the amount of data in an image, while preserving the structural properties
More informationPATTERN RECOGNITION AND MACHINE LEARNING CHAPTER 4: LINEAR MODELS FOR CLASSIFICATION
PATTERN RECOGNITION AND MACHINE LEARNING CHAPTER 4: LINEAR MODELS FOR CLASSIFICATION Introduction In the previous chapter, we explored a class of regression models having particularly simple analytical
More informationCOMPARISON OF OBJECT BASED AND PIXEL BASED CLASSIFICATION OF HIGH RESOLUTION SATELLITE IMAGES USING ARTIFICIAL NEURAL NETWORKS
COMPARISON OF OBJECT BASED AND PIXEL BASED CLASSIFICATION OF HIGH RESOLUTION SATELLITE IMAGES USING ARTIFICIAL NEURAL NETWORKS B.K. Mohan and S. N. Ladha Centre for Studies in Resources Engineering IIT
More informationMassArt Studio Foundation: Visual Language Digital Media Cookbook, Fall 2013
INPUT OUTPUT 08 / IMAGE QUALITY & VIEWING In this section we will cover common image file formats you are likely to come across and examine image quality in terms of resolution and bit depth. We will cover
More informationTemplate-based Eye and Mouth Detection for 3D Video Conferencing
Template-based Eye and Mouth Detection for 3D Video Conferencing Jürgen Rurainsky and Peter Eisert Fraunhofer Institute for Telecommunications - Heinrich-Hertz-Institute, Image Processing Department, Einsteinufer
More informationMaking natural looking Volumetric Clouds In Blender 2.48a
I think that everyone using Blender has made some trials about making volumetric clouds. The truth is that a kind of volumetric clouds is already available in Blender for a long time, thanks to the 3D
More informationBildverarbeitung und Mustererkennung Image Processing and Pattern Recognition
Bildverarbeitung und Mustererkennung Image Processing and Pattern Recognition 1. Image Pre-Processing - Pixel Brightness Transformation - Geometric Transformation - Image Denoising 1 1. Image Pre-Processing
More informationWIN32TRACE USER S GUIDE
WIN32TRACE USER S GUIDE Win32Trace is a program for converting raster (bitmap) images into vector images. These vector images can then be easily rescaled and are useful in many applications. For example,
More informationFace detection is a process of localizing and extracting the face region from the
Chapter 4 FACE NORMALIZATION 4.1 INTRODUCTION Face detection is a process of localizing and extracting the face region from the background. The detected face varies in rotation, brightness, size, etc.
More informationComputer-Generated Photorealistic Hair
Computer-Generated Photorealistic Hair Alice J. Lin Department of Computer Science, University of Kentucky, Lexington, KY 40506, USA ajlin0@cs.uky.edu Abstract This paper presents an efficient method for
More informationLeast-Squares Intersection of Lines
Least-Squares Intersection of Lines Johannes Traa - UIUC 2013 This write-up derives the least-squares solution for the intersection of lines. In the general case, a set of lines will not intersect at a
More informationMEASUREMENT OF END FACE GEOMETRY ON FIBER OPTIC TERMINI...2
MEASUREMENT OF END FACE GEOMETRY ON FIBER OPTIC TERMINI...2 IMPORTANCE OF END FACE GEOMETRY...2 FIBER OPTIC CONNECTOR END FACE GEOMETRY MEASUREMENT TECHNIQUES...2 INTERFEROMETRIC MICROSCOPE TYPES...3 MEASUREMENT
More informationThe Flat Shape Everything around us is shaped
The Flat Shape Everything around us is shaped The shape is the external appearance of the bodies of nature: Objects, animals, buildings, humans. Each form has certain qualities that distinguish it from
More informationjorge s. marques image processing
image processing images images: what are they? what is shown in this image? What is this? what is an image images describe the evolution of physical variables (intensity, color, reflectance, condutivity)
More informationUsing Photorealistic RenderMan for High-Quality Direct Volume Rendering
Using Photorealistic RenderMan for High-Quality Direct Volume Rendering Cyrus Jam cjam@sdsc.edu Mike Bailey mjb@sdsc.edu San Diego Supercomputer Center University of California San Diego Abstract With
More informationLine-Art Rendering of 3D-Models
Line-Art Rendering of 3D-Models Christian Rössl Leif Kobbelt Max-Planc-Institute for Computer Sciences Stuhlsatzenhausweg 85, 66133 Saarbrücen, Germany {roessl,obbelt}mpi-sb.mpg.de Abstract We present
More informationFreehand Sketching. Sections
3 Freehand Sketching Sections 3.1 Why Freehand Sketches? 3.2 Freehand Sketching Fundamentals 3.3 Basic Freehand Sketching 3.4 Advanced Freehand Sketching Key Terms Objectives Explain why freehand sketching
More informationVisualizing Data: Scalable Interactivity
Visualizing Data: Scalable Interactivity The best data visualizations illustrate hidden information and structure contained in a data set. As access to large data sets has grown, so has the need for interactive
More informationBinocular Vision and The Perception of Depth
Binocular Vision and The Perception of Depth Visual Perception How one visually interprets a scene 4 forms of perception to be studied: Depth Color Temporal Motion Depth Perception How does one determine
More informationThe STC for Event Analysis: Scalability Issues
The STC for Event Analysis: Scalability Issues Georg Fuchs Gennady Andrienko http://geoanalytics.net Events Something [significant] happened somewhere, sometime Analysis goal and domain dependent, e.g.
More informationMean-Shift Tracking with Random Sampling
1 Mean-Shift Tracking with Random Sampling Alex Po Leung, Shaogang Gong Department of Computer Science Queen Mary, University of London, London, E1 4NS Abstract In this work, boosting the efficiency of
More informationPHOTOGRAMMETRIC TECHNIQUES FOR MEASUREMENTS IN WOODWORKING INDUSTRY
PHOTOGRAMMETRIC TECHNIQUES FOR MEASUREMENTS IN WOODWORKING INDUSTRY V. Knyaz a, *, Yu. Visilter, S. Zheltov a State Research Institute for Aviation System (GosNIIAS), 7, Victorenko str., Moscow, Russia
More informationMorphological segmentation of histology cell images
Morphological segmentation of histology cell images A.Nedzved, S.Ablameyko, I.Pitas Institute of Engineering Cybernetics of the National Academy of Sciences Surganova, 6, 00 Minsk, Belarus E-mail abl@newman.bas-net.by
More informationIntroduction to Comparative Study
Introduction to Comparative Study The comparative study question asks you to compare and contrast two texts under one of the three modes of comparison. The comparative modes for the exam in June 2014 are:
More informationDigital Image Requirements for New Online US Visa Application
Digital Image Requirements for New Online US Visa Application As part of the electronic submission of your DS-160 application, you will be asked to provide an electronic copy of your photo. The photo must
More informationImage Gradients. Given a discrete image Á Òµ, consider the smoothed continuous image ܵ defined by
Image Gradients Given a discrete image Á Òµ, consider the smoothed continuous image ܵ defined by ܵ Ü ¾ Ö µ Á Òµ Ü ¾ Ö µá µ (1) where Ü ¾ Ö Ô µ Ü ¾ Ý ¾. ½ ¾ ¾ Ö ¾ Ü ¾ ¾ Ö. Here Ü is the 2-norm for the
More informationCAD / CAM Dr. P. V. Madhusuthan Rao Department of Mechanical Engineering Indian Institute of Technology, Delhi Lecture No. # 12 Reverse Engineering
CAD / CAM Dr. P. V. Madhusuthan Rao Department of Mechanical Engineering Indian Institute of Technology, Delhi Lecture No. # 12 Reverse Engineering So what we will do in today s lecture is basically take
More informationLecture 12: Cameras and Geometry. CAP 5415 Fall 2010
Lecture 12: Cameras and Geometry CAP 5415 Fall 2010 The midterm What does the response of a derivative filter tell me about whether there is an edge or not? Things aren't working Did you look at the filters?
More informationTABLE OF CONTENTS. INTRODUCTION... 5 Advance Concrete... 5 Where to find information?... 6 INSTALLATION... 7 STARTING ADVANCE CONCRETE...
Starting Guide TABLE OF CONTENTS INTRODUCTION... 5 Advance Concrete... 5 Where to find information?... 6 INSTALLATION... 7 STARTING ADVANCE CONCRETE... 7 ADVANCE CONCRETE USER INTERFACE... 7 Other important
More informationCopyright 2011 Casa Software Ltd. www.casaxps.com. Centre of Mass
Centre of Mass A central theme in mathematical modelling is that of reducing complex problems to simpler, and hopefully, equivalent problems for which mathematical analysis is possible. The concept of
More informationJ. P. Oakley and R. T. Shann. Department of Electrical Engineering University of Manchester Manchester M13 9PL U.K. Abstract
A CURVATURE SENSITIVE FILTER AND ITS APPLICATION IN MICROFOSSIL IMAGE CHARACTERISATION J. P. Oakley and R. T. Shann Department of Electrical Engineering University of Manchester Manchester M13 9PL U.K.
More informationAR-media TUTORIALS OCCLUDERS. (May, 2011)
AR-media TUTORIALS OCCLUDERS (May, 2011) Copyright Copyright 2008/2011 Inglobe Technologies S.r.l. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in
More informationFinite Element Formulation for Plates - Handout 3 -
Finite Element Formulation for Plates - Handout 3 - Dr Fehmi Cirak (fc286@) Completed Version Definitions A plate is a three dimensional solid body with one of the plate dimensions much smaller than the
More informationIT 386: 3D Modeling and Animation. Review Sheet. Notes from Professor Nersesian s IT 386: 3D Modeling and Animation course
IT 386: 3D Modeling and Animation Review Sheet Sources: Notes from Professor Nersesian s IT 386: 3D Modeling and Animation course Notes from CannedMushrooms on YouTube Notes from Digital Tutors tutorial
More informationCalculation of gravitational forces of a sphere and a plane
Sphere and plane 1 Calculation of gravitational forces of a sphere and a plane A paper by: Dipl. Ing. Matthias Krause, (CID) Cosmological Independent Department, Germany, 2007 Objective The purpose of
More informationAP Physics B Ch. 23 and Ch. 24 Geometric Optics and Wave Nature of Light
AP Physics B Ch. 23 and Ch. 24 Geometric Optics and Wave Nature of Light Name: Period: Date: MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Reflection,
More informationSegmentation of building models from dense 3D point-clouds
Segmentation of building models from dense 3D point-clouds Joachim Bauer, Konrad Karner, Konrad Schindler, Andreas Klaus, Christopher Zach VRVis Research Center for Virtual Reality and Visualization, Institute
More informationStructural Integrity Analysis
Structural Integrity Analysis 1. STRESS CONCENTRATION Igor Kokcharov 1.1 STRESSES AND CONCENTRATORS 1.1.1 Stress An applied external force F causes inner forces in the carrying structure. Inner forces
More information3D Analysis and Surface Modeling
3D Analysis and Surface Modeling Dr. Fang Qiu Surface Analysis and 3D Visualization Surface Model Data Set Grid vs. TIN 2D vs. 3D shape Creating Surface Model Creating TIN Creating 3D features Surface
More informationOur One-Year 3D Animation Program is a comprehensive training in 3D using Alias
1 YEAR 3D ANIMATION Illusion is the first of all pleasures Oscar Wilde Our One-Year 3D Animation Program is a comprehensive training in 3D using Alias Oscar Winning software, Maya, the industry standard
More informationHigh Dynamic Range and other Fun Shader Tricks. Simon Green
High Dynamic Range and other Fun Shader Tricks Simon Green Demo Group Motto If you can t make it good, make it big. If you can t make it big, make it shiny. Overview The OpenGL vertex program and texture
More information2.2 Creaseness operator
2.2. Creaseness operator 31 2.2 Creaseness operator Antonio López, a member of our group, has studied for his PhD dissertation the differential operators described in this section [72]. He has compared
More informationACE: After Effects CC
Adobe Training Services Exam Guide ACE: After Effects CC Adobe Training Services provides this exam guide to help prepare partners, customers, and consultants who are actively seeking accreditation as
More informationTutorial 8 Raster Data Analysis
Objectives Tutorial 8 Raster Data Analysis This tutorial is designed to introduce you to a basic set of raster-based analyses including: 1. Displaying Digital Elevation Model (DEM) 2. Slope calculations
More informationMy Materials. In this tutorial, we ll examine the material settings for some simple common materials used in modeling.
Course: 3D Design Title: My Materials Blender: Version 2.6X Level: Beginning Author; Neal Hirsig (nhirsig@tufts.edu) (May 2012) My Materials In this tutorial, we ll examine the material settings for some
More informationThea Omni Light. Thea Spot Light. Light setup & Optimization
Light setup In this tutorial we will learn how to setup lights inside Thea Studio and how to create mesh lights and optimize them for faster rendering with less noise. Let us have a look at the different
More informationVisualization of 2D Domains
Visualization of 2D Domains This part of the visualization package is intended to supply a simple graphical interface for 2- dimensional finite element data structures. Furthermore, it is used as the low
More information