Basic HTML version of Foils prepared 23 February 97

Foil 20 Compression (20): Conclusion

From Theory and Practice of Wavelet compression Rome Lab Quarterly Review for CIV -- June 28 96. by Czeslaw Jedrzejek, Tomasz Major *
The MRME algorithm doesn't work. This is one of the reasons the wavelet transform lost in the first rounds of the MPEG-4 video compression standard although it is better than DCT for still image compression (the other two reasons: relatively immature technology and difficulty of encoding objects)
New solution (hybrid scheme):
  • Wavelet coding of I frame
  • Motion estimation in real space
  • Wavelet coding of the displaced frame difference (Sarnoff/Lehigh scheme)

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