Analysis of psychological factors for quality assessment of interactive multimodal service

Kazuhisa Yamagishi; Takanori Hayashi

doi:10.1117/12.586679

18 March 2005 Analysis of psychological factors for quality assessment of interactive multimodal service

Kazuhisa Yamagishi, Takanori Hayashi

Proceedings Volume 5666, Human Vision and Electronic Imaging X; (2005) https://doi.org/10.1117/12.586679
Event: Electronic Imaging 2005, 2005, San Jose, California, United States

Abstract

We propose a subjective quality estimation model for interactive multimodal services. First, psychological factors of an audiovisual communication service are extracted by using the semantic differential (SD) technique and factor analysis. Forty subjects participate in subjective tests and perform point-to-point conversational tasks on a PC-based TV phone that exhibits various network qualities. Those subjects assess those qualities on the basis of 25 pairs of adjectives. Two psychological factors, i.e., an aesthetic feeling and a feeling of activity, are extracted from the results. Moreover, overall audiovisual quality can be estimated by evaluating scores of the above two psychological factors. Second, quality impairment factors affecting these two psychological factors are analyzed. We find that the aesthetic feeling is mainly affected by IP packet loss and video coding bit rate, and the feeling of activity depends on delay time and video frame rate. We then propose an opinion model derived from the relationships among quality impairment factors, psychological factors, and overall quality. Our calculations indicate that the estimation error of the proposed model is almost equivalent to the statistical reliability of the subjective score. Finally, using the proposed model, we discuss guidelines for quality design of interactive audiovisual communication services.

Citation Download Citation

Kazuhisa Yamagishi and Takanori Hayashi "Analysis of psychological factors for quality assessment of interactive multimodal service", Proc. SPIE 5666, Human Vision and Electronic Imaging X, (18 March 2005); https://doi.org/10.1117/12.586679

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