ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
To improve the edge detecting effect of the pressed character, a novel method based onfacet model and topographic structures is proposed. Firstly, the discrete gray scale image isapproximated by a bivariate cubic function, then, the concerned features of the continuous functionare computed to describe the discrete image. After every pixel in the image has been defined to Peak,Ridge, Saddle, Flat, Ravine, Pit or Hillside, the edge of the character is detected. To reduce the time incomputing the coefficients of cubic function, an efficient separable algorithm is presented. In addition,an image enhancement method prior to edge detection is adopted to improve the detecting effect. Thetests show that the proposed method is more suitable for complex edge detecting problems thancommon methods
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.532-533.113.pdf
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