New Region of Interest Medical Image Coding for JPEG2000: Compensation-Based Partial Bitplane Alternating Shift

  • Li-bao Zhang
  • Xian-zhong Han
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4153)


Regions of Interest (ROI) image coding enables the regions important to medical diagnosis to be encoded and transmitted at higher quality than the other regions. In the paper, a new ROI coding method called Compensation-based Partial Bitplane Alternating Shift (CPBA- Shift) is described. The proposed method divides all bitplanes of ROI and background (BG) coefficients into two portions-Alternating Shift Portion (ASP) and Compensation Shift Portion (CSP). In ASP, partial the most significant bitplanes of ROI and BG coefficients are shifted by bitplane-by-bitplane. In CSP, the least significant bitplanes of ROI and BG coefficients are scaled using compensation scheme according to the compression quality in ROI and BG. Simulation experiments show that the new method, in addition to alleviating the drawbacks of both ROI coding methods in JPEG2000, can support arbitrarily shaped multiple ROI coding with different degrees of interest without coding the shapes information.


medical image image coding region of interest JPEG2000 bitplane shift 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Li-bao Zhang
    • 1
  • Xian-zhong Han
    • 2
  1. 1.College of Information Science and TechnologyBeijing Normal UniversityBeijingChina
  2. 2.College of Information Science and TechnologyAgricultural University of HebeiHebeiChina

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