Title :
Lossless/lossy coding gain to evaluate coding performance of the lossless/lossy wavelet
Author :
Chokchaitam, Somchart ; Iwahashi, Masahiro
Author_Institution :
Dept. of Electr. Eng., Nagaoka Univ. of Technol., Niigata, Japan
Abstract :
In this report, we propose lossless/lossy coding gain as a new objective criterion to theoretically evaluate lossless and lossy coding performance of the lossless/lossy wavelet (LLW). The proposed lossless/lossy coding gain consists of three parameters: "lossless coding gain", "quantization-lossy coding gain" and "rounding errors". Performances of 15 kinds of the LLW are measured with two-dimensional (2D) octave-decomposition. Some standard images are applied as input signals to evaluate coding performance of the LLW.
Keywords :
image coding; quantisation (signal); roundoff errors; wavelet transforms; LLW; coding performance; input signals; lossless coding gain; lossless/lossy coding gain; lossless/lossy wavelet; quantization-lossy coding gain; rounding errors; standard images; two-dimensional octave-decomposition; Bit rate; Cities and towns; Image coding; Loss measurement; Nonlinear filters; Performance evaluation; Performance gain; Performance loss; Roundoff errors; Signal analysis;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010695
