Abstract
This paper presents a chromatic aberration (CA) reduction technique to remove the lateral CA and longitudinal CA, simultaneously. In general, most visible CA-related artifacts appear locally in the neighborhoods of strong edges. Since these artifacts usually have local characteristics, they cannot be removed well by the conventional methods based on global warping methods. Therefore, we designed a partial differential equation (PDE) in which the characteristics of CA are taken into account. The PDE leads to the nonlinear Poisson equation by using Eular-lagrange equation. The proposed Poisson equation matches the gradients of the edges in the red and blue channels to that in the green channel, which results in an alignment of the position of the edges while simultaneously performing a deblurring process on the edges. Experimental results show that the proposed method can effectively remove even significant CA artifacts such as the purple fringing artifact.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 11th IASTED International Conference on Computer Graphics and Imaging, CGIM 2010 |
| Pages | 179-183 |
| Number of pages | 5 |
| Publication status | Published - 2010 Jul 20 |
| Event | 11th IASTED International Conference on Computer Graphics and Imaging, CGIM 2010 - Innsbruck, Austria Duration: 2010 Feb 17 → 2010 Feb 19 |
Publication series
| Name | Proceedings of the 11th IASTED International Conference on Computer Graphics and Imaging, CGIM 2010 |
|---|
Other
| Other | 11th IASTED International Conference on Computer Graphics and Imaging, CGIM 2010 |
|---|---|
| Country | Austria |
| City | Innsbruck |
| Period | 10/2/17 → 10/2/19 |
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All Science Journal Classification (ASJC) codes
- Computer Graphics and Computer-Aided Design
- Computer Vision and Pattern Recognition
Cite this
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Chromatic aberration reduction based on the use of nonlinear poisson equation. / Kang, Hee; Kang, Moon Gi.
Proceedings of the 11th IASTED International Conference on Computer Graphics and Imaging, CGIM 2010. 2010. p. 179-183 (Proceedings of the 11th IASTED International Conference on Computer Graphics and Imaging, CGIM 2010).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Chromatic aberration reduction based on the use of nonlinear poisson equation
AU - Kang, Hee
AU - Kang, Moon Gi
PY - 2010/7/20
Y1 - 2010/7/20
N2 - This paper presents a chromatic aberration (CA) reduction technique to remove the lateral CA and longitudinal CA, simultaneously. In general, most visible CA-related artifacts appear locally in the neighborhoods of strong edges. Since these artifacts usually have local characteristics, they cannot be removed well by the conventional methods based on global warping methods. Therefore, we designed a partial differential equation (PDE) in which the characteristics of CA are taken into account. The PDE leads to the nonlinear Poisson equation by using Eular-lagrange equation. The proposed Poisson equation matches the gradients of the edges in the red and blue channels to that in the green channel, which results in an alignment of the position of the edges while simultaneously performing a deblurring process on the edges. Experimental results show that the proposed method can effectively remove even significant CA artifacts such as the purple fringing artifact.
AB - This paper presents a chromatic aberration (CA) reduction technique to remove the lateral CA and longitudinal CA, simultaneously. In general, most visible CA-related artifacts appear locally in the neighborhoods of strong edges. Since these artifacts usually have local characteristics, they cannot be removed well by the conventional methods based on global warping methods. Therefore, we designed a partial differential equation (PDE) in which the characteristics of CA are taken into account. The PDE leads to the nonlinear Poisson equation by using Eular-lagrange equation. The proposed Poisson equation matches the gradients of the edges in the red and blue channels to that in the green channel, which results in an alignment of the position of the edges while simultaneously performing a deblurring process on the edges. Experimental results show that the proposed method can effectively remove even significant CA artifacts such as the purple fringing artifact.
UR - http://www.scopus.com/inward/record.url?scp=77954590362&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77954590362&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:77954590362
SN - 9780889868243
T3 - Proceedings of the 11th IASTED International Conference on Computer Graphics and Imaging, CGIM 2010
SP - 179
EP - 183
BT - Proceedings of the 11th IASTED International Conference on Computer Graphics and Imaging, CGIM 2010
ER -