— 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...
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...
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, ...
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...
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...