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Re: [Opendivx] Reusability



I was under the impression that MPEG4 uses DWT instead of DCT.  (The W
stands for wavelet).

Am I wrong?

--Tom

----- Original Message -----
From: "Nick Feamster" <[email protected]>
To: "prakash" <[email protected]>
Cc: <[email protected]>
Sent: Wednesday, January 31, 2001 8:08 AM
Subject: Re: [Opendivx] Reusability


> The motion estimation done in MPEG-4 is similar to that done in MPEG-2.
> Both use block matching and motion estimation on 16x16 blocks, with an
> option to have 4 motion vectors per block.  I am not sure if the DCT
> coefficients are the same though...
>
> Nick
>
> On Wed, 31 Jan 2001, prakash wrote:
>
> > Hello all,
> > Is it possible to reuse the motion vectors/dct from other mpeg standards
> > here? How different are the motion vectors here when compared to mpeg-2?
> >
> > with regards
> > Prakash
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > Opendivx mailing list
> > [email protected]
> > http://lists.projectmayo.com/mailman/listinfo/opendivx
> >
>
>
> _______________________________________________
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>


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