Title :
Quantisation design of multi-dimensional DCT for image coding
Author :
Tan, D.M. ; Wu, H.R.
Author_Institution :
Sch. of Comput. Sci. & Software Eng., Monash Univ., Clayton, Vic., Australia
Abstract :
This paper presents data folding as a method for rearranging image data in a manner which allows the practical application of the DCT to expand beyond the third dimension. Additionally, the design of the quantisation matrix of a four-dimensional (4-D) DCT based on the human visual system (HVS) and rate-distortion (R-D) theory is presented. Preliminary tests of a hybrid coder utilising 4-D DCT has shown promise
Keywords :
data compression; discrete cosine transforms; image coding; matrix algebra; optical transfer function; quantisation (signal); rate distortion theory; transform coding; visual perception; 4D DCT; HVS; data folding; human visual system; hybrid coder; image coding; image data rearrangement; modulation transfer function; multi-dimensional DCT; quantisation matrix design; rate-distortion theory; Australia; Computer science; Discrete cosine transforms; Frequency conversion; Humans; Image coding; Quantization; Software engineering; Two dimensional displays; Visual system;
Conference_Titel :
TENCON 99. Proceedings of the IEEE Region 10 Conference
Conference_Location :
Cheju Island
Print_ISBN :
0-7803-5739-6
DOI :
10.1109/TENCON.1999.818384
