TY - GEN
T1 - Enhancement of image degraded by fog using cost function based on human visual model
AU - Kim, Dongjun
AU - Jeon, Changwon
AU - Kang, Bonghyup
AU - Ko, Hanseok
PY - 2009
Y1 - 2009
N2 - In foggy weather conditions, images become degraded due to the presence of airlight that is generated by scattering light by fog particles. In this paper, we propose an effective method to correct the degraded image by subtracting the estimated airlight map from the degraded image. The airlight map is generated using multiple linear regression, which models the relationship between regional airlight and the coordinates of the image pixels. Airlight can then be estimated using a cost function that is based on the human visual model, wherein a human is more insensitive to variations of the luminance in bright regions than in dark regions. For this objective, the luminance image is employed for airlight estimation. The luminance image is generated by an appropriate fusion of the R, G, and B components. Representative experiments on real foggy images confirm significant enhancement in image quality over the degraded image.
AB - In foggy weather conditions, images become degraded due to the presence of airlight that is generated by scattering light by fog particles. In this paper, we propose an effective method to correct the degraded image by subtracting the estimated airlight map from the degraded image. The airlight map is generated using multiple linear regression, which models the relationship between regional airlight and the coordinates of the image pixels. Airlight can then be estimated using a cost function that is based on the human visual model, wherein a human is more insensitive to variations of the luminance in bright regions than in dark regions. For this objective, the luminance image is employed for airlight estimation. The luminance image is generated by an appropriate fusion of the R, G, and B components. Representative experiments on real foggy images confirm significant enhancement in image quality over the degraded image.
UR - http://www.scopus.com/inward/record.url?scp=78651544663&partnerID=8YFLogxK
U2 - 10.1007/978-3-540-89859-7_12
DO - 10.1007/978-3-540-89859-7_12
M3 - Conference contribution
AN - SCOPUS:78651544663
SN - 9783540898580
T3 - Lecture Notes in Electrical Engineering
SP - 163
EP - 171
BT - Multisensor Fusion and Integration for Intelligent Systems
T2 - 7th IEEE International Conference on Multi-Sensor Integration and Fusion, IEEE MFI 2008
Y2 - 20 August 2008 through 22 August 2008
ER -