Translator Disclaimer
1 November 1992 Design and analysis of directional 2D nonseparable perfect reconstruction filter banks for subband coding of images and video signals
Author Affiliations +
Proceedings Volume 1818, Visual Communications and Image Processing '92; (1992) https://doi.org/10.1117/12.131491
Event: Applications in Optical Science and Engineering, 1992, Boston, MA, United States
Abstract
In this paper, we develop a directional 2-D non-separable filter bank which can perform the perfect reconstruction of the downsampled subband signals. The filter bank represents a union of two powerful image and video processing tools: directional decomposition and subband decomposition. This subband decomposition is implemented by: (1) shifting the input signal and the subband signals; (2) using a tree-structure diamond shape prefilter followed by downsampling on quincunx grids; and (3) applying four types parallelogram prefilters followed by four different downsampling matrices respectively. This paper addresses the design and implementation of two-channel filter banks for such applications. The two-band subsystem in the tree-structure filter bank is proved and analyzed to be able to provide perfect reconstruction of the downsampled subband signals. Our method is extremely computationally simple in designing the analysis/synthesis subfilters for the filter bank without using any nonlinearly constrained numerical optimization. Finally, we use conventional 1-D analysis/synthesis filters as prototype and then apply McClellan transform for the specific 2-D diamond shape and parallelogram shape sub-filters.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chang-Lin Huang and Chen-Chang Lien "Design and analysis of directional 2D nonseparable perfect reconstruction filter banks for subband coding of images and video signals", Proc. SPIE 1818, Visual Communications and Image Processing '92, (1 November 1992); https://doi.org/10.1117/12.131491
PROCEEDINGS
12 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Color image interpolation using vector rational filters
Proceedings of SPIE (April 05 1998)
Subband decomposition procedure for quincunx sampling grids
Proceedings of SPIE (October 31 1991)
New subband scheme for super-HDTV coding
Proceedings of SPIE (October 31 1991)
Vector median-rational hybrid filters
Proceedings of SPIE (June 21 1999)
Local adaptive image processing in a sliding transform domain
Proceedings of SPIE (September 23 2007)

Back to Top