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Paper Abstract and Keywords
Presentation 2015-08-04 10:00
On Development of an Estimation Model for Instantaneous Presence in Audio-visual Content
Shota Tsukahara, Kenji Ozawa, Yuichiro Kinoshita, Masanori Morise (Univ. Yamanashi)
Abstract (in Japanese) (See Japanese page) 
(in English) The sense of presence is often used to evaluate the performances of audio-visual (AV) content and systems. However, a presence meter has yet to be realized. We consider that the sense of presence can be divided into two aspects: system presence and content presence. In this study we focused on content presence. To estimate the overall presence of a content item, we have developed estimation models for the sense of presence in audio-only and audio-visual content. In this study, the audio-visual model is expanded to estimate the instantaneous presence in an AV content item. Initially, we conducted an evaluation experiment of the presence with 40 content items. Based on the experimental data, a neural-network-based model was developed by expanding the previous model. To express the variation in instantaneous presence, 6 audio-related features and 14 visual-related features, which are extracted from the content items in 500-ms intervals, are used as inputs for the model. The audio-related features are loudness, sharpness, roughness, dynamic range and standard deviation in sound pressure levels, and movement of sound images. The visual-related features involve hue, lightness, saturation, and movement of visual images. After constructing the model, a generalization test confirmed that the model is sufficiently accurate to estimate the instantaneous presence. Hence, the model should contribute to the development of a presence meter.
Keyword (in Japanese) (See Japanese page) 
(in English) sense of presence / audio-visual content / neural networks / time-series data / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, pp. 41-46, Aug. 2015.
Paper #  
Date of Issue 2015-07-27 (EA) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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Conference Information
Committee EA ASJ-H  
Conference Date 2015-08-03 - 2015-08-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ., Research Inst. of Electrical Communication 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Engineering/Electro Acoustics, Psychological and Physiological Acoustics, and Related Topics 
Paper Information
Registration To ASJ-H 
Conference Code 2015-08-EA-H 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) On Development of an Estimation Model for Instantaneous Presence in Audio-visual Content 
Sub Title (in English)  
Keyword(1) sense of presence  
Keyword(2) audio-visual content  
Keyword(3) neural networks  
Keyword(4) time-series data  
1st Author's Name Shota Tsukahara  
1st Author's Affiliation University of Yamanashi (Univ. Yamanashi)
2nd Author's Name Kenji Ozawa  
2nd Author's Affiliation University of Yamanashi (Univ. Yamanashi)
3rd Author's Name Yuichiro Kinoshita  
3rd Author's Affiliation University of Yamanashi (Univ. Yamanashi)
4th Author's Name Masanori Morise  
4th Author's Affiliation University of Yamanashi (Univ. Yamanashi)
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Speaker Author-2 
Date Time 2015-08-04 10:00:00 
Presentation Time 30 minutes 
Registration for ASJ-H 
Paper # EA2015-17 
Volume (vol) vol.115 
Number (no) no.169 
Page pp.41-46 
Date of Issue 2015-07-27 (EA) 

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