REGION-BASED EMBEDDED IMAGE CODING USING PARTIAL SUBBANDS MAXIMUM BITPLANES SHIFT

摘要：

The Region of Interest (ROI) coding is an important application of region-based still image coding and can encode these significant regions with higher quality than others (background). In this paper, we present a new region-based image coding method called Partial Subbands Maximum Bitplanes Shift (PSMBShift). The new method applies different scaling strategies for the different frequency subbands of wavelet image. In low and mediate frequency subbands, the Maxshift method recommended by JPEG2000 standard is used to scale all bitplanes of the ROI coefficients.In high frequency subbands, only the partial most significant bitplanes of the ROI coefficients are scaled and the other bitplanes of the ROI coefficients are obtained in original position. The experiments show that the PSMBShift method can not only combine the advantages of the two standard methods of JPEG2000, but also can control efficiently the quality between the ROIs and BG by adjusting scaling values of high frequency subbands.

关键词： Image compression region-based image coding region of interest bitplane shift Maxshift method

作者: XIAN-ZHONG HAN LI-BAO ZHANG

作者单位: College of Information Science and Technology, Agricultural University of Hebei, Baoding 071001, Chi College of Information Science and Technology, Beijing Normal University, Beijing 100875, China

会议类型: 国际会议

会议名称: 2006 International Conference on Machine Learning and Cybernetics(IEEE第五届机器学习与控制论坛)

会议地点: 大连

会议语种:英文

页码: 3924-3928

在线出版日期: 2006-08-13（万方平台首次上网日期，不代表论文的发表时间）