Efficient steerable circular harmonic functions

作者：

Highlights：

• Very efficient Circular Harmonic Function (CHF) steerable filter technique presented.

• CHF implementation several times faster than direct convolution and FFT (conditionally).

• Technique provides exact results as direct convolution.

• Comparisons presented for pattern matching, orientation analysis, and denoising.

摘要

Highlights•Very efficient Circular Harmonic Function (CHF) steerable filter technique presented.•CHF implementation several times faster than direct convolution and FFT (conditionally).•Technique provides exact results as direct convolution.•Comparisons presented for pattern matching, orientation analysis, and denoising.

论文关键词：Steerable filters,Circular harmonic functions

论文评审过程：Received 10 June 2013, Revised 22 September 2014, Accepted 17 November 2014, Available online 25 November 2014.

论文官网地址：https://doi.org/10.1016/j.patcog.2014.11.011