Paper Info
Title
Power-Efficient Video Uploading for Crowdsourced Multi-View Video Streaming.
Abstract
Exploiting the inter-camera correlation among the crowdsourced mobile video contributors is desirable as it can improve the coding efficiency and/or video quality. This can be achieved by using a digital video encoder such as H.264/Multi-view Video Coding (MVC). However, highly-complex nature of digital-based video encoding requires a large amount of power, which is a limited resource of the consumer-grade mobile devices. In addition to video encoding, transmission power is also consumed for video uploading based on the amount of uploading video traffic to satisfy video quality requirement. In this paper, we propose a power-efficient video uploading scheme for crowdsourced multi-view video streaming considering power-saving in both video encoding and video transmission. To this end, we design a cluster-based redirect transmission scheme. In this scheme, video frames of multiple contributors are only encoded by four-dimensional discrete cosine transform (4D-DCT) and modulated by near-analog modulation at a cluster head. By removing digital-based coding and modulation, our scheme achieves the same video quality with the existing scheme under low power requirements. Evaluation results show that the proposed scheme outperforms the digital-based video uploading schemes in terms of video quality and the amount of video traffic to achieve a targeted video quality.
Year
DOI
Venue
2018
10.1109/GLOCOM.2018.8647244
IEEE Global Communications Conference
Field
DocType
ISSN
Algorithmic efficiency,Computer science,Discrete cosine transform,Upload,Real-time computing,Coding (social sciences),Modulation,Mobile device,Encoder,Video quality
Conference
2334-0983
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Than Than Nu101.35
Takuya Fujihashi23411.65
takashi watanabe38423.31