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Bibliographic record number: 454257

Journal

Authors: Rimac-Drlje, Snježana; Vranješ, Mario; Žagar, Drago
Title: Foveated mean squared error — a novel video quality metric
( Foveated mean squared error — a novel video quality metric )
Source: Multimedia tools and applications (1380-7501) 49 (2010), 3; 425-445
Paper type: article
Keywords: foveated vision; retinal image velocity; spatio-temporal activity; subjective quality assessment; video quality metric
( foveated vision; retinal image velocity; spatio-temporal activity; subjective quality assessment; video quality metric )
Abstract:
Efficiency of a video coding process, as well as accuracy of an objective video quality evaluation can be significantly improved by introduction of the human visual system (HVS) characteristics. In this paper we analyze one of these characteristics ; namely, visual acuity reduction due to the foveated vision and object movements in a video sequence. We propose a new video quality metric called Foveated Mean Squared Error (FMSE) that takes into account a variable resolution of the HVS across the visual field. The highest visual acuity is at the point of fixation that falls into fovea, an area at retina with the highest density of photoreceptors. Visual acuity decreases rapidly for image regions which are further with respect to the fixation point. FMSE also utilizes the effect of additional spatial acuity reduction due to motion in a video sequence. The quality measures calculated by FMSE have shown a high correlation with experimental results obtained by subjective video quality assessment.
Project / theme: 165-0361630-1636, 165-0362027-1479, 165-0361630-3049
Original language: eng
Citation databases: Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Category: Znanstveni
Research fields:
Electrical engineering
URL: http://www.springerlink.com/openurl.asp?genre=article&id=doi:10.1007/s11042-009-0442-1
Broj citata:
Altmetric:
DOI: 10.1007/s11042-009-0442-1
URL cjelovitog rada:
Google Scholar: Foveated mean squared error — a novel video quality metric
Contrib. to CROSBI by: rimac@etfos.hr (rimac@etfos.hr), 29. Ožu. 2010. u 09:28 sati



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