Wavelet packets can be viewed as a generalization of wavelets. They were first introduced by Coifman, Meyer, Quake, and Wickerhauser as a family of orthonormal bases for discrete functions of RN. A complete subband decomposition can be viewed as a decomposition of the input signal, using an analysis tree of depth log N.
In the usual dyadic wavelet decomposition, only the low - pass - filtered subband is recursively decomposed and thus can be represented by a logarithmic tree structure. However, a wavelet packet decomposition allows the decomposition to be represented by any pruned subtree of the full tree topology.
Therefore, this representation of the decomposition topology is isomorphic to all permissible subband topologies. The leaf nodes of each pruned subtree represent one permissible orthonormal basis, The wavelet packet decomposition offers a number of attractive properties, including
Wavelet packets are currently being applied to solve various practical problems such as image compression, signal de - noising, fingerprint identification, and so on.
Haar wavelet decomposition. Courtesy of Sieve Kilthau
MULTIMEDIA Related Tutorials
|Adobe Photoshop Tutorial|
MULTIMEDIA Related Interview Questions
|MULTIMEDIA Interview Questions||Adobe Photoshop Interview Questions|
|Illustrator Interview Questions||3D Animation Interview Questions|
|Video Editing Interview Questions||UI Developer Interview Questions|
|Synchronized Multimedia Integration Language (SMIL) Interview Questions||Multimedia compression Interview Questions|
|Gif Animation Interview Questions|
Introduction To Multimedia
Multimedia Authoring And Tools
Graphics And Image Data Representations
Colour In Image And Video
Fundamental Concepts In Video
Basics Of Digital Audio
Lossless Compression Algorithm
Lossy Compression Algorithms
Image Compression Standards
Basic Video Compression Techniques
Mpeg Video Coding I – Mpeg 1 And 2
Mpeg Video Coding Ii- Mpeg-4, 7, And Beyon
Basic Audio Compression Techniques
Mpeg Audio Compression
Computer And Multimedia Networks
Multimedia Network Communications And Applications
Content-based Retrieval In Digital Libraries
All rights reserved © 2018 Wisdom IT Services India Pvt. Ltd
Wisdomjobs.com is one of the best job search sites in India.