Region of Interest Coding for JPEG2000
A region of interest(ROI) algorithm in JPEG2000 coding, with accurate bitrate control in each layer, is proposed in this paper, it permits each ROI to have its individual priority by adjusting the truncating points in Tier2.Truncation point is decided more than once for every codeblock in each layer. The algorithm rearranges the hit allocation among background and ROIs after non-ROI coding while keeping the total bitrate constant. Moreover, it supports dynamic delineation and prioritization of ROIs. The produced bitstream is fully compliant with the JPEG2000 standard one.Experimental results demonstrating the validity of the proposed approach are also presented.
region of interest JPEG2000 coding individual priority accurate bitrate control
Jun Hou Xiaomin Song
School of Optical-electrical and Computer Engineering, University of Shanghai for Science and Technology Shanghai, China
国际会议
长沙
英文
2129-2132
2010-03-13(万方平台首次上网日期,不代表论文的发表时间)