Asynchronous prefetching streaming for quick-scene access in mobile video delivery

• Published in: IEEE transactions on consumer electronics Vol. 56; no. 2; pp. 633 - 641
• Main Authors: Uchihara, Naofumi, Kasai, Hiroyuki, Suzuki, Yoshihiro, Nishigori, Yoshihisa
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.05.2010; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Assembly; Asynchronous Prefetching; Delay; Delivery systems; Electronics; Hard disks; Instability; Interference; Layout; Media; Mobile handsets; Mobile Video Streaming; Playbacks; Prefetching; Quick-Scene Access; Research and development; Streaming media; Synchronism; Weight reduction; WiMAX
• ISSN: 0098-3063; 1558-4127
• DOI: 10.1109/TCE.2010.5505981

This paper proposes a new video delivery system with a lightweight, smooth, and quick-response accessibility to video scenes without interference by unstable mobile network conditions and also without consuming mobile device storage. This can avoid a video scene access delay brought on by mobile-network-specific delay and instability. We proposed an innovative streaming technology that consists of a view-context-aware asynchronous prefetching and streaming scheme and a seamless media assembly and media synchronization scheme. As an additional powerful extension for this system, we present a hierarchical prefetching asynchronous streaming technology that considers a video-scene structure. This can provide access to a general view through the whole content as well as to a detailed view around playback position by consideration of the video-scene structure and the user's viewing position. The implementation details on mobile phones and preliminary evaluation results are described, and its feasibility is also shown.