Performance evaluation of spatio-temporal multi-resolution analysis with deinterlacer banks

Takuma Ishida; Shogo Muramatsu; Daisuke Kitagawa; Jun Uchita; Minoru Hiki; Hisakazu Kikuchi

doi:10.1117/12.631544

24 June 2005 Performance evaluation of spatio-temporal multi-resolution analysis with deinterlacer banks

Takuma Ishida, Shogo Muramatsu, Daisuke Kitagawa, Jun Uchita, Minoru Hiki, Hisakazu Kikuchi

Proceedings Volume 5960, Visual Communications and Image Processing 2005; 59600K (2005) https://doi.org/10.1117/12.631544
Event: Visual Communications and Image Processing 2005, 2005, Beijing, China

Abstract

In this work, hierarchical motion compensated three-dimensional (3-D) filter banks for spatio-temporal multi-resoution analysis are presented as new tools for scalable video format control. For recent developments in scalable video coding, most of them are based on 3-D wavelet transform with motion compensation. To achieve the function of frame-rate and spatial resolution scalabilities, motion compensated temporal filtering (MCTF) through lifting wavelet transform currently attracts many researchers as an effective temporal decomposition tool. As previous works, we proposed single stage deinterlacer banks as novel 3-D filter banks. Unlike other filter banks, our proposed system is constructed in a way unique to multi-dimensional systems by using invertible deinterlacers, which we have proposed before. The single stage deinterlacer banks decompose a progressive video into two subband sequences of a half frame-rate in the progressive scanning manner. Even though the system handles interlaced videos as intermediate data, introducing a multistage decomposition is simply achieved because the output sequences have also the progressive format as like the input. Our proposed hierarchical deinterlacer banks are accompanied by 2-D discrete wavelet transforms (DWT) as spatial transforms. The multistage technique provides interlaced sequences as well as several reduced-rate progressive sequences while maintaining the reconstruction of the original full-resolution full-rate video sequence. We show that fine granular control of spatio-temporal resolution can be acchieved through the hierarchical process. Some experimental results show novel functions and the significance of the proposed filter banks.

Citation Download Citation

Takuma Ishida, Shogo Muramatsu, Daisuke Kitagawa, Jun Uchita, Minoru Hiki, and Hisakazu Kikuchi "Performance evaluation of spatio-temporal multi-resolution analysis with deinterlacer banks", Proc. SPIE 5960, Visual Communications and Image Processing 2005, 59600K (24 June 2005); https://doi.org/10.1117/12.631544

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KEYWORDS

Video

Discrete wavelet transforms

Spatial resolution

Transform theory

Video processing

Wavelet transforms

Scalable video coding

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