Digital deblurring based on linear-scale differential analysis

Vitali Bezzubik; Nikolai Belashenkov; Gleb V. Vdovin

doi:10.1117/12.2063378

23 September 2014 Digital deblurring based on linear-scale differential analysis

Vitali Bezzubik, Nikolai Belashenkov, Gleb V. Vdovin

Proceedings Volume 9217, Applications of Digital Image Processing XXXVII; 92170A (2014) https://doi.org/10.1117/12.2063378
Event: SPIE Optical Engineering + Applications, 2014, San Diego, California, United States

Abstract

A novel method of sharpness improvement is proposed for digital images. This method is realized via linear multi-scale analysis of source image and sequent synthesis of restored image. The analysis comprises the procedure of computation of intensity gradient values using the special filters providing simultaneous edge detection and noise filtering. Restoration of image sharpness is achieved by simple subtraction of some discrete recovery function from blurred image. Said recovery function is calculated as a sum of several normalized gradient responses found by linear multi-scale analysis using the operation of spatial transposition of those gradient response values relative the points of zero-crossing of first derivatives of gradients. The proposed method provides the restoration of sharpness of edges in digital image without additional operation of spatial noise filtering and a priori knowledge of blur kernel.

Citation Download Citation

Vitali Bezzubik, Nikolai Belashenkov, and Gleb V. Vdovin "Digital deblurring based on linear-scale differential analysis", Proc. SPIE 9217, Applications of Digital Image Processing XXXVII, 92170A (23 September 2014); https://doi.org/10.1117/12.2063378

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available