Title :
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
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;
Conference_Titel :
Image Processing, 2000. Proceedings. 2000 International Conference on
Conference_Location :
Vancouver, BC, Canada
Print_ISBN :
0-7803-6297-7
DOI :
10.1109/ICIP.2000.899791