کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
850651 909288 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Frequency domain filtering of gradient image for contour detection
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Frequency domain filtering of gradient image for contour detection
چکیده انگلیسی

A novel computational step, frequency-domain filtering of gradient image, is proposed to improve detection of object contours and region boundaries in natural scenes for gradient-based edge detectors. The step is inspired by analyzing the spectrum distribution of object contours and texture edges in the frequency domain of gradient image. We illustrate the principle and effect of the proposed step by adding it to the Canny edge detector. The resulting operator can selectively retain object contours, and meanwhile can dramatically reduce non-meaningful elements resulting from a texture background. Experimental results demonstrate the effectiveness of the proposed additional step.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 124, Issue 13, July 2013, Pages 1398–1401
نویسندگان
, , , , ,