Trying to follow EZW example for one-dimensional signal
Hello,I have been reading a paper entitled "Ultrasound Image CompressionUsing the 1-D EZW AlgorithmApplied to the Ultrasound RF Signals", by Dr Miri from 2003 as anexample on how to code an EZW algorithm for a one-dimensional signal. page 2 of that paper are the wavelet coefficients and length o...
0 answers | 1527 bytes |
wavelet decompositions using lapped transform applied in Fourier domain
Hi all,I have a project which requires that I use lapped transform applied inFourier domain to calculate the Meyer wavelets.I just sketch a procedure for this and would like to ask anybody outhere to explain more for meGiven a symmetric digital signal length N: x[n].First, I DTFT the signal x[n]...
1 answers | 748 bytes |
Regarding calculation of coefficients of Polyphase IIR filter for Acoustic Echo Cancellati
Dear All,I am working on the Polyphase IIR filter for subbandingin Acoustic Echo Cancellation. For subbanding I am using Polyphase IIRfilter.To calculate the coefficents of Polyphase IIR filter, Iam not getting any sufficient information (for calculation ofcoefficients of Polyphase IIR filter) f...
0 answers | 1252 bytes |
Multiscale methods and statistics: a productive marriage
STATISTICA SINICACall for submissions onMULTISCALE METHDS AND STATISTICS:A PRDUCTIVE MARRIAGEFollowing the successful 5th Graybill Conference on "MultiscaleMethodsand Statistics: A Productive Marriage" organized by Department ofStatistics, Colorado State University in June 2006, we are invitings...
0 answers | 2232 bytes |
Get Frequency of an audio file
Which transform theorem will be more efficent in getting the frequencyof an audio file.If you have code ,please give me the link.What are all the types of frequency in an audio file?udhay...
3 answers | 234 bytes |
Dictionary preprocessing
It is well known that dictionary preprocessing (replacing words withshorter codes) improves the compression ratio of other compressors onnatural language text files. Przemyslaw Skibinski has done a lot ofresearch in this area (wrt, xml-wrt, paq8h, paq8hp10, etc).I implemented a very simple prepr...
5 answers | 1391 bytes |
a followup on my other thread
Damn, I lost that huge thread I started 2 months ago, I originallystarted it for a different purpose but before I knew it: it escalatedinto an argument over the possibility of a RAD compressor. I guessI've unintentionally started a controversy like some others have andas a result many of yo...
11 answers | 1207 bytes |
Adobe zlib compression aggressiveness
Hi,In a PDF file, for the objects that use the FlateDecode filter, zlibcompression is used. As far as I know, they use the actual zliblibrary itself.However, they must have some special tuning going on, since I cannever create a deflate stream that is as small or perhaps even smallerthan the Ado...
7 answers | 725 bytes |
JOB: Mathematician/contractor
Job DescriptionTitle: Mathematician (Consultant/Contractor)GFT Group seeks a highly creative individual with solid skills andexperience in advanced mathematics for a speech recognition project.The project will develop new concepts and advanced mathematics thatsubstantially improve the accuracy o...
0 answers | 5641 bytes |
Symposium "Computational Methods in Image Analysis" within the USNCCM IX Congress - Announ
(Apologies for cross-posting)Symposium "Computational Methods in Image Analysis"National Congress on Computational Mechanics (USNCCM IX)San Francisco, CA, USA, July 22 - 26 2007We would appreciate if you could distribute this information by yourcolleagues and co-workers.Dear Colleague,Within the...
0 answers | 1720 bytes |
How to read the audio file data
Sir,I want to read the data of an audio file in c++ (Windows).What is the API which helps to read the data of an audio file.I want to read BitRate,Audio Sample Size,Audio Sample rate and Channeludhay...
4 answers | 246 bytes |
comp.compression FAQ
Before posting a question to comp.compression, it is a good idea toscan the FAQ to see if your question has already been answered manytimes beforeThis is a regularly scheduled FAQ notice.Regular maintenance of the comp.compression FAQ has been restored, andthe FAQ can now be viewed at the follow...
0 answers | 825 bytes |
- Trying to follow EZW example for one-dimensional signal
- wavelet decompositions using lapped transform applied in Fourier domain
- Regarding calculation of coefficients of Polyphase IIR filter for Acoustic Echo Cancellati
- Multiscale methods and statistics: a productive marriage
- Get Frequency of an audio file
- JOB: Mathematician/contractor
- Symposium "Computational Methods in Image Analysis" within the USNCCM IX Congress - Announ
- How to read the audio file data
- Dictionary preprocessing
- a followup on my other thread
- Adobe zlib compression aggressiveness
- Building Huffman three
- Z_SYNC_FLUSH and adding empty blocks after that (_tr_align)
- Best Compression Algorithm
- Audio Compression
- Itterative detection of deflate parameters
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