PPT-Radial Basis Functions and Application in Edge Detection

Project by Chris Cacciatore Tian Jiang and Kerenne Paul Abstract This project focuses on the use of Radial Basis Functions in Edge Detection in both onedimensional and twodimensional images We will be using a 2D iterative RBF edge detection method We will be varying the point distribution and shape parameter We also quantify the effects of the accuracy of the edge detection on 2D images Furthermore we study a variety of Radial Basis Functions and their accuracy in Edge Detection . 0145 27016 00265 977808 00285 16408 00200 27020 00315 977812 00395 16412 00310 27024 00430 977816 00570 16416 00420 27032 00540 977824 00795 16420 00530 28506 00185 977832 01135 16424 00640 28508 00295 983306 00220 16432 00860 28512 00410 983312 0033 Radial basis function RBF kernels are commonly used but often associated with dense Gram matrices We consider a mathematical operator to spar sify any RBF kernel systematically yielding a kernel with a compact support and sparse Gram matrix Having m Ali . Dianat. . M.D. Orthopedic Hand Surgeon. Esfahan February 2013. A longitudinal deficiency of the radius . thumb usually deficient as well. bilateral in 50-72%. incidence is 1:100,000. Introduction. Alex Wade. CAP6938 Final Project. Introduction. GPU based implementation of . A Computational Approach to Edge Detection. by John Canny. Paper presents an accurate, localized edge detection method. Purpose. Kuang-Tsu. Shih. Time Frequency Analysis and Wavelet Transform Midterm Presentation. 2011.11.24. Outline. Introduction to Edge Detection. Gradient-Based Methods. Canny Edge Detector. Wavelet Transform-Based Methods. Slater-Type Orbitals (STO. ’. s). N is a normalization constant. a, b, and c determine the angular momentum, i.e.. L=. a+b+c. . ζ. is the orbital exponent. It determines the size of the . and . Dietz shape factor . Hana. . Baarová. Technical University in . Liberec. , Czech . Republic. . Introduction. Purpose of . well testing. 2. Radial Homogeneous Flow Model. Assumptions. Log-log diagnostic plot . Keep your options open!. Mr G Shyamalan. Consultant Hand Surgeon HEFT. Understanding the radiograph. Classification. Imaging and consent. Approach. Surgical case based discussion. Classic volar plate. To model a complex wavy function we need a lot of data.. Modeling a wavy function with high order polynomials is inherently ill-conditioned. . With a lot of data we normally predict function values using only nearby values. We may fit several local surrogates as in figure.. Source: D. Lowe, L. Fei-Fei. Canny edge detector. Filter image with x, y derivatives of Gaussian . Find magnitude and orientation of gradient. Non-maximum suppression:. Thin multi-pixel wide “ridges” down to single pixel width. Winter in . Kraków. photographed by . Marcin. . Ryczek. Edge detection. Goal: . Identify sudden changes (discontinuities) in an image. Intuitively, most semantic and shape information from the image can be encoded in the edges. Alex Wade. CAP6938 Final Project. Introduction. GPU based implementation of . A Computational Approach to Edge Detection. by John Canny. Paper presents an accurate, localized edge detection method. Purpose. hindcast . results and its preliminary evaluation in the South China Sea. Shihe Ren. a. , Xueming Zhu. a. , and Drevillon Marie. b. a. . National Marine Environmental Forcasting Center, Beijing, China. concealed in the belly of brachioradialis muscle and lying lateral to radial artery. In the middle third of the forearm, it lies behind brachioradialis and lateral to radial artery. It passes dorsa