| .Multiresolution edge detection based on modified bubble function and SWT[J].Optoelectronics Letters,2006,2(1):72-74 |
| Multiresolution edge detection based on modified bubble function and SWT |
| YU Rui-xing LI Yan-jun ZHANG Ke |
| College of Astronautics, Northwestern Polytechnical University, Xi＇an 710072, China |
| Abstract: |
| A new way based on a modified bubble function and stationary wavelet transform (SWT) is proposed to solve the problem that
the conventional edge detection algorithms are sensitive to the noises. Firstly, the traditional bubble function is modified
in order to get different time-frequency domain responses and to get filtering effects through adjusting the parameters. Secondly,
the modified bubble function is combined with SWT to construct a multiresolution network. By using the modified bubble function
to enhance the edges and by using SWT to reduce the noises, the edges can be extracted accurately, effectively and quickly
with lower noise. Finally, the experimental results of the proposed edge detection algorithm are verified to be better than
that with the traditional bubble function.
This research is supported by Research Fund for the Doctoral Program of Higher Education. NO.20020699014 |
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