Visual Fixation Patterns in Subjective Quality Assessment: The Relative Impact of Image Content and Structural Distortions

Document type: Conference Papers
Peer reviewed: Yes
Full text:
Author(s): Ulrich Engelke, Hans-Jürgen Zepernick, Anthony Maeder
Title: Visual Fixation Patterns in Subjective Quality Assessment: The Relative Impact of Image Content and Structural Distortions
Conference name: International Symposium on Intelligent Signal Processing and Communications Systems ISPACS
Year: 2010
Pagination: 17-20
ISBN: 978-1-4244-7370-0
Publisher: IEEE
City: Chengdu
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Electrical Engineering (Sektionen för ingenjörsvetenskap - Avd. för elektroteknik)
School of Engineering S-371 79 Karlskrona
+46 455 38 50 00
http://www.bth.se/ing/
Authors e-mail: uen@bth.se
Language: English
Abstract: The viewing behaviour of human observers during image quality assessment is analysed. In this respect, the relative impact of image content and structural distortions is of particular interest. Two subjective experiments were conducted as a basis for analysis; a region-of-interest (ROI) experiment and an eye tracking experiment under quality assessment task. A correlation analysis and a receiver operating characteristics analysis reveal, that quality assessment takes place mainly within the ROI, indicating a higher impact of the content as compared to the distortions. This seems to be only contradicted by very strong and localised distortions outside the ROI.
Subject: Signal processing\Image and Video Processing
Psychology\General
Telecommunications\General
Keywords: Eye tracking, region-of-interest, image quality assessment, visual attention.
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