http://iet.metastore.ingenta.com
1887

Removing ring artefacts in CT images via unidirectional relative variation model

Removing ring artefacts in CT images via unidirectional relative variation model

For access to this article, please select a purchase option:

Buy article PDF
$19.95
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
Electronics Letters — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

CT images often have some ring artefacts caused by the inconsistent response of detector pixels and other factors. Removing ring artefacts effectively without impairing the image quality is still a hard problem although some methods have been proposed. Given that total variation minimisation is widely used for image denoising, a unidirectional relative variation model is proposed and performs it on the reconstructed images transformed into polar coordinates to reduce the artefacts. The proposed method is tested on both simulated data and real CT images, and the qualitative and quantitative results show that it is effective.

References

    1. 1)
    2. 2)
    3. 3)
    4. 4)
    5. 5)
    6. 6)
      • 6. Wei, Z., Wiebe, S., Chapman, D.: ‘Ring artifacts removal from synchrotron CT image slices’, J. Instrum., 2013, 8, (6), pp. 10491059.
    7. 7)
    8. 8)
      • 8. Xu, L., Yan, Q., Xia, Y., Jia, J.: ‘Structure extraction from texture via relative total variation’, ACM Trans. Graph., 2012, 31, (6), pp. 439445.
    9. 9)
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2016.2692
Loading

Related content

content/journals/10.1049/el.2016.2692
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
This is a required field
Please enter a valid email address