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Proceedings Paper

Multimedia quality evaluation across different modalities
Author(s): Truong Cong Thang; Yong Man Ro
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Paper Abstract

In heterogeneous computing environments, multimedia contents would be adapted drastically in terms of quality as well as modality. There is a strong need to measure the content quality in this context, i.e. with both content scaling and modality conversion. However, the quality is often considered within a single modality (e.g. video, audio). There has been very little work on quality evaluation when the content's modality is variously converted (e.g. a video converted to a sequence of "important" images or explanatory text). This paper aims at evaluating the content quality across different scaling levels and modalities. We contend that the quality consists of two key aspects: the perceptual quality and the semantic quality. The former refers to user's satisfaction in perceiving the content, regardless of what information the content contains; the latter, which is crucial in modality conversion, refers to the amount of conveyed information, regardless of how the content is presented. We design a procedure to measure these two qualities through subjective tests, and then we present computational methods that can be used to replace the time-consuming subjective method. The experiments show the insights into the dependence of the qualities on modalities and content scaling levels.

Paper Details

Date Published: 17 January 2005
PDF: 10 pages
Proc. SPIE 5668, Image Quality and System Performance II, (17 January 2005); doi: 10.1117/12.587763
Show Author Affiliations
Truong Cong Thang, Information and Communications Univ. (South Korea)
Yong Man Ro, Information and Communications Univ. (South Korea)

Published in SPIE Proceedings Vol. 5668:
Image Quality and System Performance II
Rene Rasmussen; Yoichi Miyake, Editor(s)

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