Share Email Print

Proceedings Paper

Error-resilient decoding of randomly impaired MPEG-2 bit stream
Author(s): JongWon Kim; Jong-Wook Park; Sang Uk Lee
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

This paper presents an error resilient decoding technique based on the error detection and DCT coefficients recovery for the randomly impaired MPEG-2 bit stream. First, to simulate a more realistic and severe environment, we do not rely on the network support of the packet transport/adaptation protocol for error detection. Therefore, the macroblocks corrupted by the random bit errors are identified by a layered error detection algorithm. Next, assuming a smoothness constraint on image intensity, an object function which describes the inter-sample variations at the boundaries of the lost macroblock and the adjacent macroblocks is defined, and the damaged DCT coefficients are optimally recovered by solving a set of linear equations. Computer simulation results show that the quality of a recovered image is significantly improved even when the bit error rate is as high as 10-5.

Paper Details

Date Published: 27 February 1996
PDF: 11 pages
Proc. SPIE 2727, Visual Communications and Image Processing '96, (27 February 1996); doi: 10.1117/12.233300
Show Author Affiliations
JongWon Kim, KongJu National Univ. (South Korea)
Jong-Wook Park, Seoul National Univ. (South Korea)
Sang Uk Lee, Seoul National Univ. (South Korea)

Published in SPIE Proceedings Vol. 2727:
Visual Communications and Image Processing '96
Rashid Ansari; Mark J. T. Smith, Editor(s)

© SPIE. Terms of Use
Back to Top