Lossy To Lossless Medical Image Coding Using Joint Bit Scanning Method

A new algorithm for progressive medical image coding is presented. On the 8-bit gray scale image, lifting based integer wavelet transform (IWT) are applied to get the three level multi-resolution Integer wavelet transformed image. Then, it is encoded using block based partitioning scheme to exploit the energy clustering in frequency and in space. Whenever a pixel is found significant, pixel value is completely transmitted using vertical bit scanning and then proceeds again with block based coding. Experiments are carried on MRI images to prove the effectiveness of the proposed algorithm. The results shows a significant improvement in terms of distortion measured as peak signal to noise ratio (PSNR) and Correlation Coefficient (CoC)  for a given bit rate compared to the existing state of the art embedded image coding methods.

[1]  Thomas S. Huang,et al.  Image processing , 1971 .

[2]  Jerome M. Shapiro,et al.  Embedded image coding using zerotrees of wavelet coefficients , 1993, IEEE Trans. Signal Process..

[3]  David S. Taubman,et al.  High performance scalable image compression with EBCOT. , 2000, IEEE transactions on image processing : a publication of the IEEE Signal Processing Society.

[4]  Ahmad Zandi,et al.  CREW: Compression with Reversible Embedded Wavelets , 1995, Proceedings DCC '95 Data Compression Conference.

[5]  William A. Pearlman,et al.  A new, fast, and efficient image codec based on set partitioning in hierarchical trees , 1996, IEEE Trans. Circuits Syst. Video Technol..

[6]  Faouzi Kossentini,et al.  Reversible integer-to-integer wavelet transforms for image compression: performance evaluation and analysis , 2000, IEEE Trans. Image Process..

[7]  David S. Taubman,et al.  High performance scalable image compression with EBCOT , 1999, Proceedings 1999 International Conference on Image Processing (Cat. 99CH36348).

[8]  William A. Pearlman,et al.  Efficient, low-complexity image coding with a set-partitioning embedded block coder , 2004, IEEE Transactions on Circuits and Systems for Video Technology.