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» On the Hilbert Transform of Wavelets
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ISCAS
2008
IEEE
178views Hardware» more  ISCAS 2008»
14 years 2 months ago
3-D direction aligned wavelet transform for scalable video coding
— This paper presents a novel 3-D direction aligned wavelet transform for scalable video coding. A new generalized 3D directional threading technique is seamlessly incorporated i...
Yu Liu, King Ngi Ngan, Feng Wu
ISCAS
2003
IEEE
102views Hardware» more  ISCAS 2003»
14 years 27 days ago
Analog wavelet transform employing dynamic translinear circuits for cardiac signal characterization
An analog QRS complex detection circuit, for pacemaker applications, based on the Wavelet Transform (WT) is presented. The system detects the wavelet modulus maxima of the QRS com...
Sandro A. P. Haddad, Richard Houben, Wouter A. Ser...
ISVLSI
2002
IEEE
155views VLSI» more  ISVLSI 2002»
14 years 16 days ago
A High Speed Shift-Invariant Wavelet Transform Chip for Video Compression
Wavelet-based video compression can provide improved codec and bit rates. The shift-variance problem of the discrete wavelet transform on image sequences, however, may cause large...
Henry Y. H. Chuang, David P. Birch, Li-Chang Liu, ...
MVA
2007
149views Computer Vision» more  MVA 2007»
13 years 9 months ago
Shift-Variant Restoration of Defocused Images Using Shift-Invariant Wavelet Transform
In this paper, we restore a blurred image caused by defocus of a lens using the shift-invariant Wavelet transform realized by the RI-Spline Wavelets. In a defocus blurred image, t...
Hisanaga Fujiwara, Zhong Zhang, Tetsuo Miyake, Aki...
ICIP
2006
IEEE
14 years 9 months ago
Direction-Adaptive Discrete Wavelet Transform via Directional Lifting and Bandeletization
We propose an adaptive lifted discrete wavelet transform to locally adapt the ltering direction to the geometric ow in the image. The proposed approach re nes previous directional...
Chuo-Ling Chang, Bernd Girod