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학술지 Visual-Attention-Aware Progressive RoI Trick Mode Streaming in Interactive Panoramic Video Service
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저자
석주명, 이용헌
발행일
201404
출처
ETRI Journal, v.36 no.2, pp.253-563
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.14.2113.0012
협약과제
13ZR1100, 인터랙티브 실감형 텔레스페이스 기술개발, 채종석
초록
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.
키워드
CSF, Human visual system, Panoramic video, RoI, Scalable Video Coding, Trick mode, Visual attention
KSP 제안 키워드
Conventional methods, Experiment results, High-quality, Human Visual System(HVS), Panorama video, Panoramic video, Perceptual Quality, Progressive streaming, Region Of Interest(ROI), Scalable Video Coding, Speed-up