Image super-resolution using DCT interpolation and sparse learning-based method

Saulo R. S. Reis; Graça Bressan

doi:10.1117/12.2030721

19 July 2013 Image super-resolution using DCT interpolation and sparse learning-based method

Saulo R. S. Reis, Graça Bressan

Proceedings Volume 8878, Fifth International Conference on Digital Image Processing (ICDIP 2013); 88784C (2013) https://doi.org/10.1117/12.2030721
Event: Fifth International Conference on Digital Image Processing, 2013, Beijing, China

Abstract

In this paper we present a method for single image super-resolution that use discrete cosine transform (DCT) interpolation and a sparse learning-based super-resolution method. The input low-resolution (LR) image is interpolated using both DCT interpolation and bicubic interpolation methods. The bicubic Interpolated image undergoes a process sparse coding using OMP algorithm. The obtained sparse coefficients are multiplied with high-resolution dictionary generated in the training phase, resulting in the intermediate high-resolution (HR) image. The final HR image is obtained by adding the DCT interpolated image and intermediate HR image. The experimental results demonstrate the effectiveness of the method proposed in terms of PSNR, SSIM and visual quality.

Citation Download Citation

Saulo R. S. Reis and Graça Bressan "Image super-resolution using DCT interpolation and sparse learning-based method", Proc. SPIE 8878, Fifth International Conference on Digital Image Processing (ICDIP 2013), 88784C (19 July 2013); https://doi.org/10.1117/12.2030721

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
5 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Super resolution

Lawrencium

Image processing

Visualization

Image quality

Associative arrays

Bridges

Show All Keywords

Keywords/Phrases

Search In:

Publication Years