IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
Adjusting the positions of truncation points for JPEG2000 compression
Yinghong Zhou
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JOURNAL FREE ACCESS

2008 Volume 5 Issue 3 Pages 94-100

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Abstract

The adjusting truncation-point strategy is applied to enhance the Rate-Distortion (R-D) embedding performance by rearranging the positions of truncation points which are associated with the refinement passes, with steepest rate distortion slope. Experimental results show that compared with JPEG2000 the proposed scheme reduces the number of not feasible truncation points to more than 50%, provides a finer embedded bitstream and achieves an improvement of PSNR ranging from 0dB to 0.10dB in a wide bitrate range.

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© 2008 by The Institute of Electronics, Information and Communication Engineers
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