A novel edge detection method based on fractional-order calculus mask

作者：He Chun; Ye Yong Qiang^*; Jiang Bin; Zhou Xin

来源：Acta Automatica Sinica, 2012, 38(5): 776-787.

DOI：10.3724/SP.J.1004.2012.00776

• Approximate simulation
• Canny Operators
• Edge detection methods
• First-order derivative
• Fractional differentiation
• Fractional-order calculus
• Noise contamination
• Noise immunity
• Suppression of noise

In this paper, a new edge detection operator based on a composite derivative is proposed, which is realized by the combination of fractional differentiation and integration. The new complex edge-detection mask is also deduced for the implementation of fractional differentiation. The abilities of the compound derivative in terms of approximate simulation of first-order derivative and suppression of noise are demonstrated through one-dimensional examples. The experimental results of two-dimensional examples indicate that without the contamination of noise, the new operator can accurately detect the edge, while with the noise contamination, the new operator can effectively suppress the noise. Finally, quantitative analysis of the new operator is given. The results of the comparison between the new operator and Canny operator show that the new operator has the advantage of a low mispositioning rate.

• 出版日期2012
• 单位南京航空航天大学