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A new edge detection algorithm for a binary image based on filter back projection
WANG YiDuo1，2;SONG JianMin1，3;XI Ping1
Journal of Beijing University of Chemical Technology ›› 2008, Vol. 35 ›› Issue (2) : 96-98.
PDF(1329 KB)
PDF(1329 KB)
A new edge detection algorithm for a binary image based on filter back projection
Using the so called “cup effect”appearing in CT-image-reconstruction based on filter back projection, a new method of edge detection has been obtained by adjusting the result of image normalization with a given threshold factor to the minimum minus values of the reconstructed CT-values. Furthermore, through an improved distance rule, the optimum threshold value which gives the best edge detection in the different images,is presented.
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