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Detail
Journal Article
Visual-Attention-Aware Progressive RoI Trick Mode Streaming in Interactive Panoramic Video Service
- Authors
- Joo Myoung Seok, Yonghun Lee
- Issue Date
- 2014-04
- Citation
- ETRI Journal, v.36, no.2, pp.253-563
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- In the near future, traditional narrow and fixed viewpoint video services will be replaced by high-quality panorama video services. This paper proposes a visualattention-aware progressive region of interest (RoI) trick mode streaming service (VA-PRTS) that prioritizes video data to transmit according to the visual attention and transmits prioritized video data progressively. VA-PRTS enables the receiver to speed up the time to display without degrading the perceptual quality. For the proposed VA-PRTS, this paper defines a cutoff visual attention metric algorithm to determine the quality of the encoded video slice based on the capability of visual attention and the progressive streaming method based on the priority of RoI video data. Compared to conventional methods, VA-PRTS increases the bitrate saving by over 57% and decreases the interactive delay by over 66%, while maintaining a level of perceptual video quality. The experiment results show that the proposed VA-PRTS improves the quality of the viewer experience for interactive panoramic video streaming services. The development results show that the VA-PRTS has highly practical real-field feasibility. © 2014 ETRI.
- KSP Keywords
- Conventional methods, Experiment results, High-quality, Panorama video, Panoramic video, Perceptual Quality, Progressive streaming, Region of interest(ROI), Speed-up, Video data, Video service