User manual MATLAB WAVELET TOOLBOX RELEASE NOTES

[. . . ] No part of this manual may be photocopied or reproduced in any form without prior written consent from The MathWorks, Inc. FEDERAL ACQUISITION: This provision applies to all acquisitions of the Program and Documentation by, for, or through the federal government of the United States. By accepting delivery of the Program or Documentation, the government hereby agrees that this software or documentation qualifies as commercial computer software or commercial computer software documentation as such terms are used or defined in FAR 12. 212, DFARS Part 227. 72, and DFARS 252. 227-7014. 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Access Bug Reports using your MathWorks Account. 3 Version 4. 5 (R2010a) Wavelet ToolboxTM Software Version 4. 5 (R2010a) Wavelet ToolboxTM Software This table summarizes what's new in Version 4. 5 (R2010a): New Features and Changes Version Compatibility Considerations Fixed Bugs and Known Problems Related Documentation at Web Site Yes No Bug Reports Includes fixes Printable Release Notes: PDF Current product documentation New features and changes introduced in this version are · "3-D Discrete Wavelet Transform" on page 4 · "Nondecimated Wavelet Transform" on page 4 · "New Denoising Function" on page 5 3-D Discrete Wavelet Transform This release adds new functions and a GUI to support the 3-D discrete wavelet transform. This new functionality lets you decompose, analyze, and display a 3-D object using a different wavelet for each dimension. A demo (wavelet3ddemo) is also included. Nondecimated Wavelet Transform New nondecimated wavelet transform functions support signals of arbitrary size and different extension modes. Previous functionality had two limitations: signal length had to equal a power of 2 and the only allowable extension mode was periodized. A demo (ndwtdemo) is also included. 4 Wavelet ToolboxTM Software Release Notes New Denoising Function The new cmddenoise function uses interval-dependent denoising to compute the denoised signal and coefficients. This allows you to apply different denoising thresholds to different portions of the signal, which is typically nonuniform. You can also export thresholds from the GUI and use them in the cmddenoise function. The toolbox includes a denoising demo (cmddenoise). 5 Version 4. 4. 1 (R2009b) Wavelet ToolboxTM Software Version 4. 4. 1 (R2009b) Wavelet ToolboxTM Software This table summarizes what's new in Version 4. 4. 1 (R2009b): New Features and Changes Version Compatibility Considerations Fixed Bugs and Known Problems Related Documentation at Web Site No No Bug Reports Includes fixes Printable Release Notes: PDF Current product documentation 6 Wavelet ToolboxTM Software Release Notes Version 4. 4 (R2009a) Wavelet ToolboxTM Software This table summarizes what's new in Version 4. 4 (R2009a): New Features and Changes Version Compatibility Considerations Fixed Bugs and Known Problems Related Documentation at Web Site Yes Details below No Bug Reports Includes fixes Printable Release Notes: PDF New features introduced in this version are three new demos. New Demos The toolbox now includes three new demos: Adding a New Wavelet Wavelet Interval-dependant Denoising Wavelet Scalograms 7 Version 4. 3 (R2008b) Wavelet ToolboxTM Software Version 4. 3 (R2008b) Wavelet ToolboxTM Software This table summarizes what's new in Version 4. 3 (R2008b): New Features and Changes Version Compatibility Considerations Fixed Bugs and Known Problems Related Documentation at Web Site Yes Details below No Bug Reports Includes fixes Printable Release Notes: PDF New features and changes introduced in this version are · "True Image Compression Support" on page 8 · "New Demo" on page 8 True Image Compression Support The new wcompress functions lets you compress 2-D image data. Use Import from Workspace and Export to Workspace, respectively, on the GUI's File menu. Scalograms for Continuous Wavelet Transforms The ability to compute scalograms of the wavelet coefficients in continuous wavelet analysis has been added as an option to the cwt function. You can also pass the structure produced by cwt directly to the new wscalogram function. Scalograms show the percentage of energy in each wavelet coefficient. Constructing Clusters from Hierarchical Cluster Trees You can now construct clusters from hierarchical cluster trees in multisignal analysis using the new mdwtcluster function. 11 Version 4. 0 (R2007a) Wavelet ToolboxTM Software Version 4. 0 (R2007a) Wavelet ToolboxTM Software This table summarizes what's new in Version 4. 0 (R2007a): New Features and Changes Version Compatibility Considerations Fixed Bugs and Known Problems Related Documentation at Web Site Yes Details below No Bug Reports Includes fixes Printable Release Notes: PDF New features and changes introduced in this version are · "1-D Multisignal Analysis, Compression, and Denoising Added" on page 12 · "1-D Multisignal Wavelet and Clustering Added" on page 13 · "Wavelet 1-D Multisignal Analysis GUI Added" on page 13 1-D Multisignal Analysis, Compression, and Denoising Added The following command-line functions for 1-D multisignal analysis, compression, and denoising have been added to the toolbox: mswcmp mswcmpscr mswcmptp mswden mswthresh Multisignal 1-D compression using wavelets. Performs Multisignal 1-D thresholding. 12 Wavelet ToolboxTM Software Release Notes 1-D Multisignal Wavelet and Clustering Added The following command-line functions for 1-D multisignal wavelets and clustering have been added to the toolbox: chgwdeccfs mdwtdec mdwtrec wdcenergy Change Multisignal 1-D decomposition coeffs Multisignal 1-D wavelet decomposition Multisignal 1-D wavelet reconstruction. Multisignal 1-D decomposition energy repartition Note Clustering analyses require that Statistics Toolbox is installed. Wavelet 1-D Multisignal Analysis GUI Added A graphical user interface for 1-D multisignal analysis has been added. To start this GUI, select Multisignal Analysis 1-D from the wavemenu dialog. 13 Version 3. 1 (R2006b) Wavelet ToolboxTM Software Version 3. 1 (R2006b) Wavelet ToolboxTM Software This table summarizes what's new in Version 3. 1 (R2006b): New Features and Changes Version Compatibility Considerations Fixed Bugs and Known Problems Related Documentation at Web Site Yes Details below No Bug Reports Includes fixes No New features and changes introduced in this version are · "Multivariate De-noising Added" on page 14 · "Multiscale Principal Component Analysis Added" on page 14 · "New Demos" on page 15 Multivariate De-noising Added A new command-line function (wmulden) and a new GUI (Multivariate Denoising from the wavemenu initial window) for de-noising a matrix of signals have been added. Both the function and GUI take into account the signals themselves and the correlations between the signals. First, a change of basis is performed to deal with noise spatial correlation de-noising in the new basis. Then, a principal component analysis is performed to take advantage of the deterministic relationships between the signals, leading to an additional de-noising effect. Multiscale Principal Component Analysis Added A new command-line function (wmspca) and a new GUI (Multiscale Princ. Analysis from the wavemenu initial window) for simplifying a matrix of signals have been added. [. . . ] Five groups of new lifting functions are included in Wavelet Toolbox, Version 3. 0: · Key lifting scheme structures - addlift--Add primal or dual elementary lifting steps to a lifting scheme - displs--Display a lifting scheme - lsinfo--Information about lifting schemes · Biorthogonal quadruplets of filters - bswfun--Compute and plot biorthogonal "scaling and wavelet" functions - filt2ls--Transform a quadruplet of filters to a lifting scheme - liftfilt--Apply elementary lifting steps on quadruplet of filters - ls2filt--Transform a lifting scheme to a quadruplet of filters · Orthogonal or biorthogonal ("true") wavelets and "lazy" wavelets. - liftwave--Provides lifting scheme associated to a wavelet - wave2lp--Provides Laurent polynomials associated to a wavelet - wavenames--Provides wavelet names available for LWT · Direct and inverse Lifting Wavelet Transform (LWT) - lwt--1-D Lifting Wavelet Transform - lwt2--2-D Lifting Wavelet Transform - lwtcoef--Extract or reconstruct 1-D LWT wavelet coefficients - lwtcoef2--Extract or reconstruct 2-D LWT wavelet coefficients - ilwt--Inverse 1-D Lifting Wavelet Transform - ilwt2--Inverse 2-D Lifting Wavelet Transform 21 Version 3. 0 (R14) Wavelet ToolboxTM Software · Laurent polynomials and matrices (see Note below) - laurmat--Constructor for the class LM of Laurent Matrices - laurpoly--Constructor for the class LP of Laurent Polynomials Compatibility Consideration If you saved laurmat or laurpoly objects using the names lm or lp, respectively, in the Beta release, you must rename them to laurmat or laurpoly, respectively, in this release of Wavelet Toolbox 3. 0. Speed Enhancements Many functions, including those involving decomposition and reconstruction, have been enhanced so they run more efficiently. New Extension Modes for DWT Four new extension modes are available for dwt, which allows specifying halfor whole-point symmetry, or half- or whole-point anti-symmetry. These new extension modes are supported by both wextend to extend or truncate signal or images, and by the corresponding GUI tools: Signal Extension and Image Extension. New Supported Image Formats Images stored using JPEG, TIFF, PCX, and others can be directly loaded into the Wavelet Toolbox GUI. Images stored in True Colour mode are converted automatically in indexed mode when loaded in the 2-D tools. [. . . ]