Open Access Open Access  Restricted Access Subscription or Fee Access

A Signal Processing Approach to Reduce Motion Blur in Lcds by Deconvolution

R. Praveenkumar, M. Dhamodaran, S. Jegadeesan

Abstract



An LCD, or Liquid Crystal Displays widely used as a screen that is used in many Televisions, Digital equipment screen, Mobile phones, cameras and tablets. LCD's are very flat and thin, which are actually composed of several layers. The sample-and-hold properties of the LCDs leads to motion blur. This problem can be eliminated by using a suitable signal processing approach using the Human Visual System (HVS) models. This method includes preprocessing the input data before it is fed to the display .In this paper, a new Total variation-based algorithm is introduced for image deconvolution by the assumptions of AWG (additive white Gaussian noise) and linear observations. The TV estimate is obtained by majorization-minimization approach, and by relying on convexity arguments .This method replaces a complex optimization problem by a sequence of simpler ones. The proposed algorithm either outperforms or equals when compared with the same kind of methods with similar computational complexity.

Keywords


LCD Motion blur, visual system, image denoising, scaled gradient magnitude, total variation.

Full Text:

PDF


Disclaimer/Regarding indexing issue:

We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information.