Enhancement of compressed video using visual quality measurements

Author

Segall, C. Andrew ; Katsaggelos, Aggelos K.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Northwestern Univ., Evanston, IL, USA

Volume

2

fYear

2000

fDate

10-13 Sept. 2000

Firstpage

645

Abstract

The enhancement of compressed video is considered. We present a general algorithm for processing the compressed data, with three variants of the algorithm having practical application. We then consider the algorithm within the context of MPEG-2. Assuming complete knowledge of the compressed bitstream, experiments compare the different realizations of the enhancement algorithm. Our comparisons stress improvements in visual quality, measured by models of the human visual system. Quantitative and qualitative results are provided.

Keywords

code standards; data compression; image enhancement; image sequences; telecommunication standards; video coding; visual perception; MPEG-2; algorithm; compressed bitstream; compressed data processing; compressed video enhancement; human visual system model; image sequences; video compression standards; visual quality measurements; Atmospheric measurements; Degradation; Distortion measurement; Humans; Image coding; Image sequences; Optical distortion; Transform coding; Video compression; Visual system;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 2000. Proceedings. 2000 International Conference on

Conference_Location

Vancouver, BC, Canada

ISSN

1522-4880

Print_ISBN

0-7803-6297-7

Type

conf

DOI

10.1109/ICIP.2000.899791

Filename

899791