An adaptive error-resilient video encoder

Liang Cheng; Magda El Zarki

doi:10.1117/12.503328

23 June 2003 An adaptive error-resilient video encoder

Liang Cheng, Magda El Zarki

Proceedings Volume 5150, Visual Communications and Image Processing 2003; (2003) https://doi.org/10.1117/12.503328
Event: Visual Communications and Image Processing 2003, 2003, Lugano, Switzerland

Abstract

When designing an encoder for a real-time video application over a wireless channel, we must take into consideration the unpredictable fluctuation of the quality of the channel and its impact on the transmitted video data. This uncertainty motivates the development of an adaptive video encoding mechanism that can compensate for the infidelity caused either by data loss and/or by the post-processing (error concealment) at the decoder. In this paper, we first explore the major factors that cause quality degradation. We then propose an adaptive progressive replenishment algorithm for a packet loss rate (PLR) feedback enabled system. Assuming the availability of a feedback channel, we discuss a video quality assessment method, which allows the encoder to be aware of the decoder-side perceptual quality. Finally, we present a novel dual-feedback mechanism that guarantees an acceptable level of quality at the receiver side with modest increase in the complexity of the encoder.

Citation Download Citation

Liang Cheng and Magda El Zarki "An adaptive error-resilient video encoder", Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); https://doi.org/10.1117/12.503328

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available