R. Zaciu et al., IMAGE COMPRESSION USING AN OVERCOMPLETE DISCRETE WAVELET TRANSFORM, IEEE transactions on consumer electronics, 42(3), 1996, pp. 800-807
This paper investigates the application of a new concept called the ''
Overcomplete Discrete Wavelet Transform''(ODWT) for image sequences co
mpression, It has been demonstrated that: ''The translated function wi
th any integer multiple of the sampling period is completely represent
ed in the wavelet space by one of the ODWT members''. This theoretical
result leads to a new motion estimation and compensation scheme worki
ng in the transform domain. Our simulation experiments, performed on r
eal image sequences, show high quality and low bit rate performances.
By performing the motion estimation in the wavelet space, a quite mode
st computational complexity is ensured.