International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Call for Papers | Fully Refereed | Open Access | Double Blind Peer Reviewed

ISSN: 2319-7064


Downloads: 117

Research Paper | Electronics & Communication Engineering | India | Volume 8 Issue 11, November 2019


Denoising and Deblurring by Gauss Markov Random Field: An Alternating Minimization Convex Prior

Latha H N [2] | Bharathi Lokesh


Abstract: In this work we propose the problem of denoising and deblurring of a degraded noisy blurred image in a single frame work. Firstly, we denoise the image containing Additive White Gaussian Noise (AWGN) and implement a non-blind deconvolution method to deblur the image using Gauss Markov random field (GMRF) prior. We estimate both the all-in-focus image and the blur sigma corresponding to the space-invariant point spread function (PSF). This problem is highly ill posed to obtain an initial estimate of blur map. We implement an MAP-GMRF alternating minimization framework to obtain the blur kernel. We calculate analytically the gradients on two direction with respect to the unknowns and show that the proposed objective function can successfully optimized with the steepest descent technique. We show results using the Gauss-Markov random field [2] prior. We show that fine details and structure information's are preserved by the GMRF regularizer. We compare the results of our algorithm with state-of-the art techniques and provide both qualitative and quantitative evaluation.


Keywords: Gauss Markov random field, Non-blind deblurring, Additive White Gaussian Noise, Point Spread Function


Edition: Volume 8 Issue 11, November 2019,


Pages: 1669 - 1672


How to Download this Article?

You Need to Register Your Email Address Before You Can Download the Article PDF


How to Cite this Article?

Latha H N, Bharathi Lokesh, "Denoising and Deblurring by Gauss Markov Random Field: An Alternating Minimization Convex Prior", International Journal of Science and Research (IJSR), Volume 8 Issue 11, November 2019, pp. 1669-1672, https://www.ijsr.net/get_abstract.php?paper_id=ART20203050

Similar Articles with Keyword 'Additive White Gaussian Noise'

Downloads: 108

Research Paper, Electronics & Communication Engineering, India, Volume 3 Issue 11, November 2014

Pages: 2159 - 2163

Performance Analysis of Multi-Carrier Modulation Techniques Using FFT, DWT and DT-WPT

Chitakani Ravi Kishore | Gadhe Jayanth Reddy | Murali Mohan K.V

Share this Article

Downloads: 115

Review Papers, Electronics & Communication Engineering, India, Volume 3 Issue 5, May 2014

Pages: 722 - 724

BER Performance for M-ARY Digital Communication

Ravisha [18] | Saroj [47]

Share this Article
Top