Sökning: "Ping Zhao"

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1. 1. A Contour-based Separation of VerticallyAttached Traffic Signs

   Master-uppsats, Datateknik

   Författare :Ping Zhao; [2007]
   Nyckelord :contour; road and traffic sign; shape decomposition; black noise elimination;

   Sammanfattning : This report presents an algorithm for locating the cut points for and separatingvertically attached traffic signs in Sweden. This algorithm provides severaladvanced digital image processing features: binary image which representsvisual object and its complex rectangle background with number one and zerorespectively, improved cross correlation which shows the similarity of 2Dobjects and filters traffic sign candidates, simplified shape decompositionwhich smoothes contour of visual object iteratively in order to reduce whitenoises, flipping point detection which locates black noises candidates, chasmfilling algorithm which eliminates black noises, determines the final cut pointsand separates originally attached traffic signs into individual ones. LÄS MER