Motion vector recovery using optical flow

Author

Jae-Won Suh ; Yo-Sung Ho

Author_Institution

Kwangju Inst. of Sci. & Technol., South Korea

fYear

2000

fDate

13-15 June 2000

Firstpage

234

Lastpage

235

Abstract

A compressed bitstream generated by an MPEG-2 video coder is sensitive to channel errors. Due to the coding structure of the MPEG-2 video compression algorithm, a bit error can affect not only the current picture frame but also succeeding frames. In this paper, we propose a temporal error concealment algorithm to recover lost or erroneously received motion vectors. In order to estimate the motion vector of the erroneous macroblock at the decoder we use the average value of optical flow vectors of neighboring luminance intensity values.

Keywords

decoding; error correction; image reconstruction; image sequences; motion estimation; video signal processing; MPEG-2 video coder; MPEG-2 video compression; bit error; channel errors; compressed bitstream; erroneous macroblock; motion vector recovery; neighboring luminance intensity values; optical flow; picture frame; temporal error concealment algorithm; Forward error correction; Image motion analysis; Image reconstruction; Interleaved codes; Motion estimation; Optical receivers; Optical sensors; Transform coding; Video compression; Video sequences;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics, 2000. ICCE. 2000 Digest of Technical Papers. International Conference on

Conference_Location

Los Angles, CA, USA

Print_ISBN

0-7803-6301-9

Type

conf

DOI

10.1109/ICCE.2000.854600

Filename

854600