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A fast image recovery using compressive sensing technique with block based orthogonal matching pursuit

by Vorapoj Patanavijit; Parichat Sermwuthisarn; Supatana Auethavekiat

Title:

A fast image recovery using compressive sensing technique with block based orthogonal matching pursuit

Author(s):

Vorapoj Patanavijit
Parichat Sermwuthisarn
Supatana Auethavekiat

Issued date:

2009-12

Citation:

Proceedings of IEEE International Symposium on Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2009), Kanazawa, Japan, (December 2009), 212-215 (IEEE Xplore)

Abstract:

Traditionally, the problems of applying Orthogonal Matching Pursuit (OMP) to large images are its high computing time and its requirement for a large matrix. In this paper, we propose a fast image recovery algorithm by dividing the image into block of nxn pixels and applying OMP to each nxn block instead of the entire image. The key idea is that small matrix requires less computing time and less memory. In the experiment, the block based OMP was applied to three standard test images: Lena, Mandrill and Pirate. Compared to standard OMP, block based OMP required less computing time while giving comparable PSNR.

Resource type:

Proceeding Paper

Extent:

4 pages

Type:

Text

File type:

application/pdf

Language:

eng

URI:

http://repository.au.edu/handle/6623004553/17927
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Copyright © Assumption University.
All Rights Reserved.

Contact Us

The St. Gabriel's Library   
Hua Mak Campus  
Ramkhamhaeng 24, Hua Mak  
Bangkok Thailand 10240  
Tel.: (662) 3004543-62 Ext. 3402  
Fax.: (662) 7191544  
E-Mail Library : library@au.edu  


The Cathedral of Learning Library
Suvarnabhumi Campus
Bang Na-Trad Km. 26 Bangsaothong
Samuthprakarn Thailand 10540
Tel.: (662) 7232024, 7232025
Fax.: (662) 7191544
E-Mail Library : library@au.edu
 

 

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