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Sensors 2015, 15(12), 31723-31737; doi:10.3390/s151229882

Subjective Quality Assessment of Underwater Video for Scientific Applications

1
Department of Communication Engineering, University of Málaga, 29071 Málaga, Spain
2
Spanish Institute of Oceanography, 29649 Fuengirola, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Jaime Lloret Mauri
Received: 12 November 2015 / Revised: 7 December 2015 / Accepted: 11 December 2015 / Published: 15 December 2015
(This article belongs to the Special Issue Underwater Sensor Nodes and Underwater Sensor Networks 2016)
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Abstract

Underwater video services could be a key application in the better scientific knowledge of the vast oceanic resources in our planet. However, limitations in the capacity of current available technology for underwater networks (UWSNs) raise the question of the feasibility of these services. When transmitting video, the main constraints are the limited bandwidth and the high propagation delays. At the same time the service performance depends on the needs of the target group. This paper considers the problems of estimations for the Mean Opinion Score (a standard quality measure) in UWSNs based on objective methods and addresses the topic of quality assessment in potential underwater video services from a subjective point of view. The experimental design and the results of a test planned according standardized psychometric methods are presented. The subjects used in the quality assessment test were ocean scientists. Video sequences were recorded in actual exploration expeditions and were processed to simulate conditions similar to those that might be found in UWSNs. Our experimental results show how videos are considered to be useful for scientific purposes even in very low bitrate conditions. View Full-Text
Keywords: video quality; MOS; quality assessment; underwater sensor networks video quality; MOS; quality assessment; underwater sensor networks
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Moreno-Roldán, J.-M.; Luque-Nieto, M.-Á.; Poncela, J.; Díaz-del-Río, V.; Otero, P. Subjective Quality Assessment of Underwater Video for Scientific Applications. Sensors 2015, 15, 31723-31737.

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