Staircase effect alleviation based on multiscale analysis of Laplacian Pyramid

Wenjie Chen; Yutang Ye; Yonglin Huang

doi:10.1117/12.917577

15 November 2011 Staircase effect alleviation based on multiscale analysis of Laplacian Pyramid

Wenjie Chen, Yutang Ye, Yonglin Huang

Proceedings Volume 8335, 2012 International Workshop on Image Processing and Optical Engineering; 83350X (2011) https://doi.org/10.1117/12.917577
Event: 2012 International Workshop on Image Processing and Optical Engineering, 2012, Harbin, China

Abstract

Image denoising with second order partial differential equations (PDEs) often leads to undesirable staircase effect, namely, the transformation of smooth regions into piecewise constant regions. In this paper, staircase effect is analyzed in spatial frequency domain which is different from previous studies. A method of nonlinear diffusion based on Laplacian Pyramid is proposed. The experimental results show that the proposed method alleviates the staircase effect and leads to more natural restored images.

Citation Download Citation

Wenjie Chen, Yutang Ye, and Yonglin Huang "Staircase effect alleviation based on multiscale analysis of Laplacian Pyramid", Proc. SPIE 8335, 2012 International Workshop on Image Processing and Optical Engineering, 83350X (15 November 2011); https://doi.org/10.1117/12.917577

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