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ROI coding based on rate-distortion slope lifting

DENG Jia-xian;WU Cheng-ke;LI Yun-song;ZHUANG Huai-yu

  

  1. (State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an 710071, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2004-04-20 Published:2004-04-20

Abstract: A method for ROI encoding based on rate-distortion slope lifting which does not lift the coefficients is proposed. The decoder does not need to lift reversely the coefficients and works normally. The requirement for ROI can be attained. So it is suitable for image compression with the given ROI PSNR and for interactive client/server applications.

Key words: image processing, rate-distortion slope lifting, ROI coding, bit-plane lifting

CLC Number: 

  • TN919.81