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Programming in Java Advanced Imaging
Programming in Java Advanced Imaging

... Government is subject to the restrictions set forth in DFARS 252.227-7013 (c)(1)(ii) and FAR 52.227-19. The release described in this document may be protected by one or more U.S. patents, foreign patents, or pending applications. Sun Microsystems, Inc. (SUN) hereby grants to you a fully paid, nonex ...
Texture - Stanford Graphics Lab
Texture - Stanford Graphics Lab

Reducing Shading on GPUs using Quad
Reducing Shading on GPUs using Quad

Forward Rasterization - Purdue Computer Science
Forward Rasterization - Purdue Computer Science

... edges of the triangle and splits the triangle in horizontal spans of pixels. The DDA approach is used by the RealityEngine [Akeley 1993]. The Pixel-Planes architecture [Fuchs et al. 1985] has the ability to quickly evaluate linear expressions for many pixels in parallel and introduces the edge equat ...
Efficient Histogram Generation Using Scattering on GPUs
Efficient Histogram Generation Using Scattering on GPUs

... GPU-based post-processing algorithms. This screenshot shows our prototype implementation of Ward’s Histogram Adjustment tone mapping operator applied to a real-time 3D scene rendered with high dynamic range. The graph below shows the histogram of the HDR frame buffer in red, and the tone mapping fun ...
Detail to Attention: Exploiting Limits of the Human Visual
Detail to Attention: Exploiting Limits of the Human Visual

Lecture notes
Lecture notes

CSIRO_The Hungry Microbiome Project_Starch-SD
CSIRO_The Hungry Microbiome Project_Starch-SD

Algorithms for modeling anatomic and target volumes in
Algorithms for modeling anatomic and target volumes in

... Various techniques to improve region growing are also presented. The simplex search method and combinatory similarity terms were used to improve the similarity function with a low additional computational cost and high yield in region correctness. Moreover, the effects of different priority queue im ...
Adding Depth to Cartoons Using Sparse Depth (In)equalities
Adding Depth to Cartoons Using Sparse Depth (In)equalities

Medical Image Analysis
Medical Image Analysis

... The precession frequency ◦ Depends on the type of nuclei with a specific gyromagnetic ratio and the intensity of the external magnetic field ◦ This is the frequency on which the nuclei can receive the Radio Frequency (RF) energy to change their states for exhibiting nuclear magnetic resonance ◦ The ...
The Consistent Labeling Problem: Part I
The Consistent Labeling Problem: Part I

... the elements of the matrix are numbered as in Fig. 1. The elements of the matrix can be thought of as the set of 16 units U = {1,... 16}. Each object can be described by a label consisting of the first letter of its color followed by the first letter of its shape. Thus, the red circle is RC, the gre ...
monitor movement of scanning beam image acquisition device
monitor movement of scanning beam image acquisition device

... acquired With the scanning beam image acquisition device using a ?rst image acquisition mode When the monitoring indicates that the scanning beam image acquisition device is moving. Images may be acquired With the scanning beam image acquisition device using a second image acquisition mode When the ...
Introduction to OpenGL - Department of Computing
Introduction to OpenGL - Department of Computing

survey of texture mapping
survey of texture mapping

... local coordinate system (‘‘frame mapping’’) [Kaj85]. Our focus in this paper is on the computational aspects of texturing: those tasks common to all types of texture mapping. We will not attempt a thorough survey of the optical and semantic implications of texturing, a careful review of which is ava ...
Illumination from Shadows
Illumination from Shadows

IMAQ Vision Concepts Manual
IMAQ Vision Concepts Manual

... The media on which you receive National Instruments software are warranted not to fail to execute programming instructions, due to defects in materials and workmanship, for a period of 90 days from date of shipment, as evidenced by receipts or other documentation. National Instruments will, at its o ...
GPU Computational Geometry - University of North Carolina
GPU Computational Geometry - University of North Carolina

... Extraction: Topology preserving Iso-surface extraction from multiresolution cubes ...
modified nonnegative matrix factorization for endmember spectra
modified nonnegative matrix factorization for endmember spectra

IOSR Journal of Computer Engineering (IOSR-JCE) e-ISSN: 2278-0661,p-ISSN: 2278-8727, PP 69-76 www.iosrjournals.org
IOSR Journal of Computer Engineering (IOSR-JCE) e-ISSN: 2278-0661,p-ISSN: 2278-8727, PP 69-76 www.iosrjournals.org

2007 Cow Poster - College of Engineering | Oregon State University
2007 Cow Poster - College of Engineering | Oregon State University

Iris Compression and Recognition using Spherical Geometry Image
Iris Compression and Recognition using Spherical Geometry Image

... Kumar et al. [25] utilized correlation filters to measure the consistency of iris images from the same eye. The correlation filter of each class was designed using the two-dimensional. In [26], Hong and Smith proposed the octave band directional filter banks which are capable of both directional dec ...
Curvature radius analysis for scanning probe microscopy
Curvature radius analysis for scanning probe microscopy

Institutionen för systemteknik Department of Electrical Engineering Examensarbete
Institutionen för systemteknik Department of Electrical Engineering Examensarbete

... There exist several methods for matching data based on the assumption that the data are overlapping. The Iterative Closest Points algorithm [Zhang, 1992] is one example of a data aligning strategy for point cloud data where an initial guess of the displacement has to be given. If no initial guess ca ...
Fast Visualization of Object Contours by Non
Fast Visualization of Object Contours by Non

... modulated by the view-dependent intensity function I P V (Equation 2) to the sample points and to perform an alphablending rendering. This approach demonstrated in Figure 2d emphasizes rather the contours of low-curvature surfaces since for each high intensity pixel there are several high opacity sa ...
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Edge detection



Edge detection is the name for a set of mathematical methods which aim at identifying points in a digital image at which the image brightness changes sharply or, more formally, has discontinuities. The points at which image brightness changes sharply are typically organized into a set of curved line segments termed edges. The same problem of finding discontinuities in 1D signals is known as step detection and the problem of finding signal discontinuities over time is known as change detection. Edge detection is a fundamental tool in image processing, machine vision and computer vision, particularly in the areas of feature detection and feature extraction.
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