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Resolution-improvement scheme for wireless video transmission
Abstract : In recent years, wireless video transmission has emerged as one of the high growth applications of wireless communication technology. However, this error-prone network is packet based where many potential reasons may result in packet loss which has a devastating effect on the visual quality of images at the receiver. In this work, we study a coordinated application of Error-Resilient (ER) and Super-Resolution (SR) to enhance the resolution of image transmitted over wireless networks. Compressed video bitstreams require protection from channel errors in a wireless channel. The 3-D set partitioning in hierarchical trees (SPIHT) coder has proved its efficiency and its real-time capability in compression of video. A forward-error-correcting (FEC) channel (RCPC) code combined with a single automatic-repeat request (ARQ) proved to be an effective means for protecting the bitstream. Furthermore, a robust SR algorithm is proposed in the presence of different kinds of packet loss rate to enhance the image resolution. Experimental results indicate that the proposed robust resolution-enhancement scheme outperforms the competing methods from the aspects of PSNR (Peak-Signal-to-Noise Ratio) and visual quality under different packet loss rates. © 2010 Springer-Verlag Berlin Heidelberg.
https://hal-ensta-paris.archives-ouvertes.fr//hal-00830775
Contributor : Aurélien Arnoux <>
Submitted on : Wednesday, July 3, 2013 - 12:38:08 PM
Last modification on : Tuesday, January 5, 2021 - 5:10:03 PM
Contributor : Aurélien Arnoux <>
Submitted on : Wednesday, July 3, 2013 - 12:38:08 PM
Last modification on : Tuesday, January 5, 2021 - 5:10:03 PM
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