Title :
Normalised rate-distortion model for quantisation in MC-DCT video coders
Author :
Kyeong Ho Yang ; Jacquin, A. ; Jayant, Nikil S.
Author_Institution :
Bell Labs., Lucent Technol., Murray Hill, NJ
fDate :
12/4/1997 12:00:00 AM
Abstract :
A new normalised rate-distortion model for quantisation in MC-DCT video coders is proposed. The model is computationally very efficient, since it approximates rate-distortion relations for all values of the quantisation parameter with only one curve, by normalising the energy of signals and the quantisation distortion, with functions of the quantisation parameter
Keywords :
discrete cosine transforms; motion compensation; quantisation (signal); rate distortion theory; video coding; MC-DCT video coders; energy; motion compensation; normalised rate-distortion model; quantisation distortion; quantisation parameter; rate-distortion relations;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19971436
