Sign in

Search compdsp

comp.dsp by Keywords

Sponsor

Industry's highest performing at the lowest power DSPs now as low as $5.00*
Start development today!
*volume pricing for 10ku

Discussion Groups

Free Online Books

Discussion Groups | Comp.DSP | How Vector Quantization is a better compressin algorithm

There are 2 messages in this thread.

You are currently looking at messages 0 to 2.

How Vector Quantization is a better compressin algorithm - 2005-05-12 12:38:00

Can anyone there inform me about how is vector Quantization is a better
algorithm than other existing algroithm. If also possible provide me
with a comparative analysis of it. Is it better to implement the
algorithm using C language.

______________________________
New DSP Code Snippets Section now Live. Learn more about the reward program for contributors here.

Re: How Vector Quantization is a better compressin algorithm - 2005-05-12 13:26:00

S...@gmail.com writes:

> Can anyone there inform me about how is vector Quantization is a better
> algorithm than other existing algroithm. If also possible provide me
> with a comparative analysis of it. Is it better to implement the
> algorithm using C language.

Perhaps it is, perhaps it isn't.

At the risk of contributing to a homework question - here are some
things to think about:

* Does your VQ distance metric really reflect your ideal distortion?

* How does searching a VQ codebook scale with decreasing distortion rates?

* Are there sequential correlations in your vectors?

* Is using an integer number of bits optimal for your task?

* What are you comparing C to?  Lisp?  Assembler?

It's hard to say more without knowing more details.

Tony