Syntax and discontinuity based error concealment

Author

Lynch, William E. ; Papadakis, Vasilios ; Krishnamurthy, Rajesh ; Le-Ngoc, Tho

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada

Volume

4

fYear

1999

fDate

36342

Firstpage

235

Abstract

In this paper we extend a joint source/channel coding scheme (syntax based error concealment (SBEC)) for MPEG2 compressed video, over noisy channels. The extension is called syntax and discontinuity based error concealment (SDBEC) which uses a smoothness criteria in the uncompressed domain to improve the concealment. SDBEC´s PSNR and subjective performance is much better than SBECs down to Bit Error Rates (BERs) of 10^-4. This improvement comes at the cost of complexity. The effect of slice size on SBEC and SDBEC is studied and it is shown that reduced slice size improves picture quality and decreases complexity at higher BER´s

Keywords

combined source-channel coding; computational complexity; data compression; video coding; MPEG2 compressed video; PSNR; SBEC; SDBEC; bit error rates; complexity; discontinuity based error concealment; joint source/channel coding scheme; noisy channels; picture quality; slice size; smoothness criteria; syntax based error concealment; uncompressed domain; Communication channels; Computer errors; Councils; Decoding; Error correction; Frequency; PSNR; Redundancy; Telecommunication standards; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on

Conference_Location

Orlando, FL

Print_ISBN

0-7803-5471-0

Type

conf

DOI

10.1109/ISCAS.1999.779985

Filename

779985