| | |
Summary: 544 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 17, NO. 5, MAY 2007
Rate-Distortion-Authentication Optimized Streaming
of Authenticated Video
Zhishou Zhang, Student Member, IEEE, Qibin Sun, Member, IEEE, Wai-Choong Wong, Senior Member, IEEE,
John Apostolopoulos, Senior Member, IEEE, and Susie Wee, Member, IEEE
Abstract--We define authenticated video as decoded video that
results from those received packets whose authenticities have
been verified. Generic data stream authentication methods usually
impose overhead and dependency among packets for verification.
Therefore, the conventional rate-distortion (R-D) optimized video
streaming techniques produce highly sub-optimal R-D perfor-
mance for authenticated video, since they do not account for the
overhead and additional dependencies for authentication. In this
paper, we study this practical problem and propose an Rate-Dis-
tortion-Authentication (R-D-A) optimized streaming technique
for authenticated video. Based on packets' importance in terms of
both video quality and authentication dependencies, the proposed
technique computes a packet transmission schedule that minimizes
the expected end-to-end distortion of the authenticated video at
the receiver subject to a constraint on the average transmission
|
