Abstract
A multiscale representation for video signals based on wavelet decomposition and multi-resolution motion estimation (MRME) is presented in this chapter. The multiresolution/multifrequency nature of the discrete wavelet transform lends itself as an ideal tool for representing images and video signals for a variety of scan formats and resolutions. The wavelet transform decomposes a video frame into a set of sub-frames with different resolutions corresponding to different frequency bands. These multiresolution frames also provide a representation of the global motion structure in the scene at different scales. The motion activities in different sub-frames are hence highly correlated since they actually specify the same motion structure at different scales.
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