Show simple item record

dc.contributor.authorWu, Jianhua
dc.contributor.authorCai, Jianfei
dc.contributor.authorChen, Chang Wen
dc.date.accessioned2017-05-22T20:12:01Z
dc.date.available2017-05-22T20:12:01Z
dc.date.issued2006-07-31
dc.identifier.citationWu, J., Cai, J., & Chen, C. W. (2005). Constant quality constrained bit allocation for leaky prediction based FGS video streaming. Paper presented at the Proceedings of SPIE - the International Society for Optical Engineering, 5960(4) 2212-2219. doi:10.1117/12.633507en_US
dc.identifier.urihttp://hdl.handle.net/11141/1443
dc.description.abstractLeaky prediction based FGS (Fine Granularity Scalability) can achieve better coding efficiency than the baseline FGS. However, for leaky prediction based FGS (L-FGS), constant quality constrained bit allocation, i.e., how to optimally allocate bits given the current channel bandwidth, is still an open problem. In this paper, based on the accurate R-D (Rate-Distortion) model developed in our previous work, we propose a constant quality constrained bit allocation scheme for L-FGS. The proposed scheme is a combination of offline and online processes. During the offline stage, we perform the L-FGS encoding and collect the necessary feature information. At the online stage, given the transmission bandwidth at that time, we quickly estimate the R-D curves of a sequence of consecutive video frames based on our previously developed R-D model and then perform the corresponding bit allocation using a sliding window technique. Experimental results show that our proposed bit allocation algorithm can achieve much more smooth video quality than the traditional uniform bit allocation under both CBR (constant bit rate) and VBR (variable bit rate) channels.en_US
dc.language.isoen_USen_US
dc.rightsThis published article is made available in accordance with publishers policy. It may be subject to U.S. copyright law.en_US
dc.rights.urihttp://spie.org/publications/journals/guidelines-for-authors#Terms_of_Useen_US
dc.titleConstant quality constrained bit allocation for leaky prediction based FGS video streamingen_US
dc.typeConference Proceedingen_US
dc.identifier.doi10.1117/12.633507


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record