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UNIQUE: Unsupervised Image Quality Estimation

Abstract: 

In this paper, we estimate perceived image quality using sparse representations obtained from generic image databases through an unsupervised learning approach. A color space transformation, a mean subtraction, and a whitening operation are used to enhance descriptiveness of images by reducing spatial redundancy; a linear decoder is used to obtain sparse representations; and a thresholding stage is used to formulate suppression mechanisms in a visual system. A linear decoder is trained with 7 GB worth of data, which corresponds to 100,000 8x8 image patches randomly obtained from nearly 1,000 images in the ImageNet 2013 database. A patch-wise training approach is preferred to maintain local information. The proposed quality estimator UNIQUE is tested on the LIVE, the Multiply Distorted LIVE, and the TID 2013 databases and compared with thirteen quality estimators. Experimental results show that UNIQUE is consistently a top performing quality estimator in terms of accuracy, consistency, linearity, and monotonic behavior.

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Paper Details

Authors:
Dogancan Temel, Mohit Prabhushankar, and Ghassan Alregib
Submitted On:
1 March 2017 - 6:01pm
Short Link:
Type:
Presentation Slides
Event:
Presenter's Name:
Ghassan AlRegib
Paper Code:
IVMSP-L2.2
Document Year:
2017
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UNIQUE: Unsupervised Image Quality Estimation

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[1] Dogancan Temel, Mohit Prabhushankar, and Ghassan Alregib, "UNIQUE: Unsupervised Image Quality Estimation", IEEE SigPort, 2017. [Online]. Available: http://sigport.org/1560. Accessed: Jun. 25, 2017.
@article{1560-17,
url = {http://sigport.org/1560},
author = {Dogancan Temel; Mohit Prabhushankar; and Ghassan Alregib },
publisher = {IEEE SigPort},
title = {UNIQUE: Unsupervised Image Quality Estimation},
year = {2017} }
TY - EJOUR
T1 - UNIQUE: Unsupervised Image Quality Estimation
AU - Dogancan Temel; Mohit Prabhushankar; and Ghassan Alregib
PY - 2017
PB - IEEE SigPort
UR - http://sigport.org/1560
ER -
Dogancan Temel, Mohit Prabhushankar, and Ghassan Alregib. (2017). UNIQUE: Unsupervised Image Quality Estimation. IEEE SigPort. http://sigport.org/1560
Dogancan Temel, Mohit Prabhushankar, and Ghassan Alregib, 2017. UNIQUE: Unsupervised Image Quality Estimation. Available at: http://sigport.org/1560.
Dogancan Temel, Mohit Prabhushankar, and Ghassan Alregib. (2017). "UNIQUE: Unsupervised Image Quality Estimation." Web.
1. Dogancan Temel, Mohit Prabhushankar, and Ghassan Alregib. UNIQUE: Unsupervised Image Quality Estimation [Internet]. IEEE SigPort; 2017. Available from : http://sigport.org/1560