A Fractal Based Subpixel Image Edge Detection Algorithm

Abstract:

Application of machine vision method for MEMS dynamic parameters were measured, the testing image have a certain degree of ambiguity.This paper presents a sub-pixel algorithm based on fractal and wavelet transform: Firstly, using self-similar characteristics of fractal interpolation to overcome the problem ,that can not be accurate interpolation and the edge of the image reconstruction. Then because of abilities of high resolution and anti-noise,using wavelet transform modulus maxima,the image edge detection.The experimental results show that the algorithm can reach 0.02 pixel accuracy.

• Periodical: Applied Mechanics and Materials (Volumes 239-240)
• Pages: 1546-1551
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.239-240.1546
• Online since: December 2012
• Authors: Yuan Luo, Chao Ji, Yi Zhang, Zhang Fang Hu
• Keywords: Edge Detection, Fractal Interpolation, Micro Electro Mechanical System, Sub-Pixel, Wavelet-Transform Modulus Maxima

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