By Topic

R-D optimized media streaming enhanced with adaptive media playout

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.

The purchase and pricing options are temporarily unavailable. Please try again later.
3 Author(s)
Kalman, M. ; Dept. of Electr. Eng., Stanford Univ., CA, USA ; Steinbach, E. ; Girod, B.

Streaming media systems buffer media data at the client to improve reconstruction quality at the cost of latency. Reconstruction quality may be further improved with rate-distortion optimized packet transmission. In this paper we show how the tradeoff between buffering latency and reconstruction quality can be improved with adaptive media playout (AMP) - the client-controlled manipulation of the playout speeds of media frames. We then show how to incorporate AMP into an existing framework for rate-distortion optimized packet transmission. The resulting receiver-driven scheme jointly optimizes packet transmissions and playout speeds with respect to rate, distortion and the subjective cost of playout speed variations. Results for a short media clip show a more than 2 dB improvement in mean PSNR for R-D optimized transmission combined with a moderate amount of AMP, over R-D optimized transmission alone.

Published in:

Multimedia and Expo, 2002. ICME '02. Proceedings. 2002 IEEE International Conference on  (Volume:1 )

Date of Conference: