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http://dx.doi.org/10.5573/ieek.2013.50.12.150

Approximated Constrained Least Squares Filter for Real-Time Directionally Adaptive Image Restoration  

Cho, Changhun (Dept. of Image Engineering, Graduate School of Advanced Image Science, Multimedia, and Film, Chung-Ang University)
Jeon, Jaehwan (Dept. of Image Engineering, Graduate School of Advanced Image Science, Multimedia, and Film, Chung-Ang University)
Paik, Joonki (Dept. of Image Engineering, Graduate School of Advanced Image Science, Multimedia, and Film, Chung-Ang University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.12, 2013 , pp. 150-158 More about this Journal
Abstract
In this paper we present approximated constrained least squares filter for real-time directionally adaptive image restoration. The proposed method makes a hardware implementation easier for real-time image restoration because of reducing the filter size. Furthermore, for directional adaptive image restoration, this paper estimates the local orientation by analyzing the covariance matrix and applies to approximated constrained least squares filter. Experimental results show that the proposed method is sharper and less artifacts than existing methods.
Keywords
영상복원;방향 적응적 영상복원;절단된 제약적 최소 제곱 필터;Maxwell-Boltzmann 분포;
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1 B. Hunt, "The application of constrained least squares estimation to image restoration by digital computer," IEEE Trans. Computers, vol. 22, no. 9, pp. 805-812, September 1973.
2 L. Yuan, J. Sun, L. Quan, and H. Shum, "Image deblurring with blurred/noisy image pairs," ACM Trans. Graphics, vol. 26, no. 3, July 2007.
3 X. Wei, Z. Geng, C. Jiang and C. Shen, "Multi-frame sparse aperture image restoration based on movable array," Proc. Int. Conf. Computer Vision in Remote Sensing 2012, pp. 100-104, December 2012.
4 W. Dong, L. Zhang, G. Shi, and X. Wu, "Image deblurring and super-resolution by adaptive sparse domain selection and adaptive regularization," IEEE Trans. Image Processing, vol. 20, no. 7, pp. 1838-1857, July 2011.   DOI   ScienceOn
5 S. Kim, S. Jun, E. Lee, J. Shin, and J. Paik, "Real-time bayer-domain image restoration for an extended depth of field (EDoF) camera," IEEE Trans. Consumer Electronics, vol. 55, no. 4, pp. 1756-1764, November 2009.   DOI   ScienceOn
6 T. Fan, H. Zhao, G. Wang, J. Chen, F. Xu, and J. Villasenor, "An adaptive covariance-based edge diffusion image enlargement method," IEEE Visual Communications and Image Processing 2012, pp. 1-6, November 2012.
7 W. Tam, C. Kok, and W. Siu, "Modified edge-directed interpolation for images," Journal of Electronic Imaging, vol. 19, no. 1, pp. 013011_1-013011_20, March 2010.
8 H. Takeda, S. Farsiu, and P. Milanfar, "Kernel regression for image processing and reconstruction," IEEE Trans. Image Processing, vol. 16, no. 2, pp. 349-366, February 2007.   DOI   ScienceOn
9 X. Feng and P. Milanfar, "Multiscale principal components analysis for image local orientation estimation," Proc. 36th Asilomar Conf. Signals, Systems and Computers 2002, vol. 1, pp. 478-482, November 2002.