Title :
A wavelet multiresolution analysis for spatio-temporal signals
Author :
Burns, Thomas J. ; Rogers, Steven K. ; Oxley, Mark E. ; Ruck, Dennis W.
Author_Institution :
Air Force Inst. of Technol., Wright-Patterson AFB, OH, USA
fDate :
4/1/1996 12:00:00 AM
Abstract :
The wavelet filters of the conventional 3D multiresolution analysis possess homogeneous spatial and temporal frequency characteristics which limits one´s ability to match filter frequency characteristics to signal frequency behavior. Also, the conventional 3D multiresolution analysis employs an oct-tree decomposition structure which restricts the analysis of signal details to identical resolutions in space and time. This paper presents a 3D wavelet multiresolution analysis constructed from nonhomogeneous spatial and temporal filters, and an orthogonal sub-band coding scheme that decouples the spatial and temporal decomposition processes.
Keywords :
image processing; octrees; spatial filters; wavelet transforms; 3D; decoupling; filter frequency characteristics; nonhomogeneous spatial filters; nonhomogeneous temporal filters; octtree decomposition structure; orthogonal sub-band coding; signal frequency behavior; spatio-temporal sign; wavelet filters; wavelet multiresolution analysis; Discrete wavelet transforms; Frequency; High definition video; Image coding; Matched filters; Multiresolution analysis; Signal analysis; Signal resolution; Spatial resolution; Wavelet analysis;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
