کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
564937 875658 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of filter sphericity on the detection of singularities in synthetic images
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Influence of filter sphericity on the detection of singularities in synthetic images
چکیده انگلیسی
It has been demonstrated previously that isotropy of wavelets is advantageous for the detection of pointwise singularities. The influence of the isotropy is studied here for a broader class of operators. We compare Gabor filters which provide a relatively high directionality, the spherical wavelet and the Mexican Hat function which is isotropic. From experiments on different backgrounds and with defects of varying size, we observe a clear influence of sphericity on the detection of small singularities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 87, Issue 3, March 2007, Pages 552-561
نویسندگان
, , ,