Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2016
Session Number:T2-6
Session:
Number:4902
Lossless DWT Transcoder Compatible with lossy DWT for 3D Image
Suvit Poomrittigul, Masahiro Iwahashi ,
pp.575-578
Publication Date:2016/7/10
Online ISSN:2188-5079
Summary:
This paper proposes the lossless discrete wavelet transform (DWT) transcoder compatible to standard lossy coding based on the 9/7 DWT in JPEG2000 (JP2K) for three dimensions (3D) image. The proposed transcoder is applied by re-lifting the integer coding 9/7 DWT and modifying the position of some coefficients. This paper has confirmed that the transcoding between the standard lossless coder 5/3 DWT and the standard lossy decoder 9/7 DWT is not compatible. Since, proposed method presents integer coding 9/7 DWT and more 2 re-lifted integer coding 9/7 DWT to improve the compatibility with standard lossy DWT. The results show that all proposed transcoders are compatible with lossy DWT for 3D image by improving from the PSNR 21.90 up to 57.0 dB.