TY - GEN
T1 - Blind image quality assessment considering blur, noise, and JPEG compression distortions
AU - Cohen, Erez
AU - Yitzhaky, Yitzhak
PY - 2007/12/1
Y1 - 2007/12/1
N2 - The quality of images may be severely degraded in various situations such as imaging during motion, sensing through a diffusive medium, high compression rate and low signal to noise. Often in such cases, the ideal un-degraded image is not available (no reference exists). This paper overviews past methods that dealt with no-reference (NR) image quality assessment, and then proposes a new NR method for the identification of image distortions and quantification of their impacts on image quality. The proposed method considers both noise and blur distortion types that individually or simultaneously exist in the image. Distortion impacts on image quality are evaluated in the spatial frequency domain, while noise power is further estimated in the spatial domain. Specific distortions addressed here include additive white noise, Gaussian blur, de-focus blur, and JPEG compression. Estimation results are compared to the true distortion quantities, over a set of 75 different images.
AB - The quality of images may be severely degraded in various situations such as imaging during motion, sensing through a diffusive medium, high compression rate and low signal to noise. Often in such cases, the ideal un-degraded image is not available (no reference exists). This paper overviews past methods that dealt with no-reference (NR) image quality assessment, and then proposes a new NR method for the identification of image distortions and quantification of their impacts on image quality. The proposed method considers both noise and blur distortion types that individually or simultaneously exist in the image. Distortion impacts on image quality are evaluated in the spatial frequency domain, while noise power is further estimated in the spatial domain. Specific distortions addressed here include additive white noise, Gaussian blur, de-focus blur, and JPEG compression. Estimation results are compared to the true distortion quantities, over a set of 75 different images.
KW - Blur impact
KW - Image power spectrum
KW - Image quality assessment
KW - Image quality measure
KW - No-reference IQM
KW - Noise impact
UR - http://www.scopus.com/inward/record.url?scp=42149099899&partnerID=8YFLogxK
U2 - 10.1117/12.736048
DO - 10.1117/12.736048
M3 - Conference contribution
AN - SCOPUS:42149099899
SN - 9780819468444
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Applications of Digital Image Processing XXX
T2 - Applications of Digital Image Processing XXX
Y2 - 28 August 2007 through 30 August 2007
ER -