Assessing the influence of combinations of blockiness, blurriness, and packet loss impairments on visual attention deployment

Alexandre F. Silva; Mylène C. Q. Farias; Judith A. Redi

doi:10.1117/12.2083487

17 March 2015 Assessing the influence of combinations of blockiness, blurriness, and packet loss impairments on visual attention deployment

Alexandre F. Silva, Mylène C. Q. Farias, Judith A. Redi

Author Affiliations +

Proceedings Volume 9394, Human Vision and Electronic Imaging XX; 93940Z (2015) https://doi.org/10.1117/12.2083487
Event: SPIE/IS&T Electronic Imaging, 2015, San Francisco, California, United States

Abstract

In digital video systems, impairments introduced during the capture, coding/decoding processes, delivery and display might reduce the perceived quality of the visual content. Recent developments in the area of visual quality have focused on trying to incorporate aspects of gaze patterns into the design of visual quality metrics, mostly using the assumption that visual distortions appearing in less salient areas might be less visible and, therefore, less annoying. Most of these studies, however, have considered the presence of a single artifact (e.g. blockiness or blur) impairing the image. In practice, this is not the case, as multiple artifacts may overlap, and their combined appearance may be strong enough to deviate saliency from its natural pattern. In this work, our focus is on measuring the impact and the influence of combinations of artifacts on the video saliency. For this purpose, we tracked eye-movements of participants in a subjective quality assessment experiment during a free-viewing and a quality assessment tasks. Results show that the gaze locations change from pristine videos to impaired videos. These changes seem to be more related to the quality level and content of videos than to the specific combination of artifacts.

Citation Download Citation

Alexandre F. Silva, Mylène C. Q. Farias, and Judith A. Redi "Assessing the influence of combinations of blockiness, blurriness, and packet loss impairments on visual attention deployment", Proc. SPIE 9394, Human Vision and Electronic Imaging XX, 93940Z (17 March 2015); https://doi.org/10.1117/12.2083487

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available