By Topic

Perceptually Unequal Packet Loss Protection by Weighting Saliency and Error Propagation

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Hojin Ha ; Digital Media and Communications Research and Development Center, Samsung Electronics, Suwon-si, Korea ; Jincheol Park ; Sanghoon Lee ; Alan Conrad Bovik

We describe a method for achieving perceptually minimal video distortion over packet-erasure networks using perceptually unequal loss protection (PULP). There are two main ingredients in the algorithm. First, a perceptual weighting scheme is employed wherein the compressed video is weighted as a function of the nonuniform distribution of retinal photoreceptors. Secondly, packets are assigned temporal importance within each group of pictures (GOP), recognizing that the severity of error propagation increases with elapsed time within a GOP. Using both frame-level perceptual importance and GOP-level hierarchical importance, the PULP algorithm seeks efficient forward error correction assignment that balances efficiency and fairness by controlling the size of identified salient region(s) relative to the channel state. PULP demonstrates robust performance and significantly improved subjective and objective visual quality in the face of burst packet losses.

Published in:

IEEE Transactions on Circuits and Systems for Video Technology  (Volume:20 ,  Issue: 9 )