Toplam kayıt 2, listelenen: 1-2
Hierarchical quantization indexing for wavelet and wavelet packet image coding
(ELSEVIER SCIENCE BV, 2010-02)
In this paper, we introduce the quantization index hierarchy, which is used for efficient coding of quantized wavelet and wavelet packet coefficients. A hierarchical classification map is defined in each wavelet subband, ...
Spherical representation in wavelet packets for image coding
In this paper, we present an adaptation of the spherical coder, which has been developed for wavelet transform, to wavelet packets. This coder uses local energy as a direct measure to differentiate the spatial informatin ...