Prioritized Transmission Gain for Mobile Visual Communications

Hyungkeuk LEE
Sanghoon LEE

Publication
IEICE TRANSACTIONS on Communications   Vol.E89-B    No.10    pp.2809-2812
Publication Date: 2006/10/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.10.2809
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Mobile Multimedia Communications)
Category: 
Keyword: 
mobile visual communications,  foveated video,  compression gain,  regions of interest (ROI),  layered transmission,  

Full Text: PDF(476.1KB)>>
Buy this Article


Summary: 
For point-to-point mobile visual communications, layered video has been utilized to adapt to time-varying channel capacity over noisy environments. From the perspective of the HVS (Human Visual System), it is necessary to minimize the loss of visual quality by specifically maintaining the throughput of visually important regions, objects and so on. Utilizing the prioritized bitstreams generated according to each layer, the throughput can be improved for given channel statistics. In this paper, we define the transmission gain and measure the improved performance when the throughput of ROI (Regions Of Interest) is increased relative to visually unimportant regions over a capacity limited mobile channel.