NDLI: LGPS: Phase Based Image Quality Assessment Metric

Content Provider	IEEE Xplore Digital Library
Author	Zhai, Guangtao Zhang, Wenjun Xu, Yi Lin, Weisi
Copyright Year	2007
Description	Author affiliation: Institute of Image Comm. and information Proc. Shanghai Jiao Tong University, Shanghai, 200240, China (Zhai, Guangtao; Zhang, Wenjun; Xu, Yi) \|\| School of Computer Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore (Lin, Weisi)
Abstract	Phase map of the images captures the most fundamental cognitive features and thus is widely used in various digital image processing tasks. In this paper, we propose the Log Gabor Phase Similarity (LGPS), a novel full reference image quality assessment metrics based on measuring of similarities between phases in log Gabor transform domain. Phase can capture any changes in image details regardless of the fluctuation in contrast, and the similarity between phase maps provides a measure of the perceptual quality of images. An image is firstly decomposed by a filter bank consisting of a pair of log Gabor filters. The phase maps are then computed from the responses of each filter pair. We have developed a window-based similarity metric to evaluate the resemblance between phase maps so as to measure the quality of the image. Experimental results and comparative studies suggest that LGPS can be used to predict the perceived quality of images with different distortions.
Starting Page	605
Ending Page	609
File Size	339992
Page Count	5
File Format	PDF
ISBN	9781424412211
ISSN	15206130
DOI	10.1109/SIPS.2007.4387618
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image quality Gabor filters Filter bank Phase measurement Frequency Finite impulse response filter PSNR Nonlinear filters Feature extraction Image matching peak signal to noise ratio Image processing Log Gabor transform image quality assessment
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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