4 January 2006 The application of the all phase contourlet on image denoising
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Proceedings Volume 5985, International Conference on Space Information Technology; 598535 (2006) https://doi.org/10.1117/12.657934
Event: International Conference on Space information Technology, 2005, Wuhan, China
Abstract
This paper proposes a new discrete transform called AP-Contourlet (All Phase Contourlet). Contourlet is a flexible and fixed transform for image representations of geometrical regularity. Because it has been concluded that APDCT (All Phase DCT) filter and APIDCT (All Phase IDCT) are excellent respectively in subband decomposition and image interpolation, this paper develops a novel mutliscale decomposition method based on the APDCT filter and APIDCT interpolators to replace Laplacian Pyramid at the fist step of contoulet. Experiments in denoising typical images have shown the performance of the proposed AP-contourlet is obviously superior to original contourlet both in vision and in signal to noise ratio (SNR).
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Xujing Guo, Zhengxin Hou, "The application of the all phase contourlet on image denoising", Proc. SPIE 5985, International Conference on Space Information Technology, 598535 (4 January 2006); doi: 10.1117/12.657934; https://doi.org/10.1117/12.657934
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