Document Detail


The effect of content desirability on subjective video quality ratings.
MedLine Citation:
PMID:  20653229     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: The purpose of this study was to examine the impact of the desirability of content on viewers' ratings of subjective video quality. BACKGROUND: Most subjective video quality studies use short-duration clips that are specially designed to exercise the encoding algorithms and do not consider the desirability of the content as a variable. METHOD: In four studies, we employed a total of 100 participants and 180 movie clips encoded at nine levels from 550 kbps up to DVD quality. Participants viewed clips that were 2 min in length and then were asked about video quality of the clips and desirability of the movie content. RESULTS: The results of these studies show that there is a strong correlation between the desirability of movie content and subjective ratings of video quality. This strong relationship holds across a wide range of encoding levels and movie content when that content is viewed under longer, more naturalistic viewing conditions. CONCLUSION: The effects of content should be considered when evaluating the subjective quality of encoded video content, as these effects can be as large as those seen between low- and high-quality encodings. APPLICATION: Researchers and practitioners trying to determine acceptable levels of video quality for actual consumption by consumers may find that the results and methods described here allow for a more accurate assessment of levels of video quality that are acceptable in a fielded service.
Authors:
Philip Kortum; Marc Sullivan
Related Documents :
7868009 - Report on the second ednap collaborative str exercise. european dna profiling group.
10893469 - Defining characteristics of financially successful orthodontists.
12762899 - Training in microvascular surgery using a chicken wing artery.
20364629 - A clearer route to carbon footprinting.
20890469 - Why do clinical trials in general practice?
8546379 - External quality assessment scheme for haematology in germany.
17108479 - A controlled prospective study on the efficacy of seas.02 exercises in preparation to b...
23795769 - Exercise holds immediate benefits for affect and cognition in younger and older adults.
17043329 - Contralateral effects of unilateral strength training: evidence and possible mechanisms.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Human factors     Volume:  52     ISSN:  0018-7208     ISO Abbreviation:  Hum Factors     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-07-26     Completed Date:  2010-08-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374660     Medline TA:  Hum Factors     Country:  United States    
Other Details:
Languages:  eng     Pagination:  105-18     Citation Subset:  IM; S    
Affiliation:
Department of Psychology, Rice University, 6100 Main Street MS 25, Houston, TX 77005, USA. pkortum@rice.edu
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Female
Humans
Male
Middle Aged
Motion Pictures as Topic*
Video Recording*
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Multisensory integration with a head-mounted display: role of mental and manual load.
Next Document:  Assessment of structural knowledge as a training outcome in process control environments.