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Dhruv
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 Posted: Tue Nov 18, 2008 6:05 am Post subject: Motion Estimation |
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hi friends
i want some help ...
i want to implement motion estimation.....in video compression so how
to start and what kind of tools will be helpful to me???
and i am studying about three step search and etc....
any body having code for it??? |
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Dhruv
Guest
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| Posted: Tue Nov 18, 2008 12:32 pm Post subject: Re: Motion Estimation |
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On Nov 18, 2:41 am, Thomas Richter <t...@math.tu-berlin.de> wrote:
| Quote: | Dhruv schrieb:
hi friends
i want some help ...
i want to implement motion estimation.....in video compression so how
to start and what kind of tools will be helpful to me???
Depends on what you really need... Is this some kind of development
project? In that case, I suggest looking at existing implementations,
probably start with the easiest possible, the H.261 codec, and try to
understand how that works.
If this is more an academic project, probably do some reading. We had
here:
Video Demystified: A Handbook for the Digital Engineer, 5th Edition
(Paperback)
as a source, which is probably not quite up to date (I haven't checked
the most recent edition), but still a good starter.
Otherwise, there are many strategies for motion estimation - you
probably start with the most simple ones first and try to understand
them, i.e. full search, hierarchical search, and work towards newer models.
and i am studying about three step search and etc....
any body having code for it???
I think you should find plenty. Open source codecs like mplayer or xine
will surely have a H.26x somewhere in the sources, you probably want to
play with that first.
So long,
Thomas
|
thanks Thomas
For replying me soon
actually i am doing research project and i have already studied about
block motion estimation and their algorithm but i don't know how it
can be implemented
ade which is good tools for that ..?? |
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Dhruv
Guest
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| Posted: Tue Nov 18, 2008 1:54 pm Post subject: Re: Motion Estimation |
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On Nov 18, 4:39 am, Thomas Richter <t...@math.tu-berlin.de> wrote:
| Quote: | Dhruv schrieb:
I think you should find plenty. Open source codecs like mplayer or xine
will surely have a H.26x somewhere in the sources, you probably want to
play with that first.
So long,
Thomas
thanks Thomas
For replying me soon
actually i am doing research project and i have already studied about
block motion estimation and their algorithm but i don't know how it
can be implemented
ade which is good tools for that ..??
Well, for me a compiler and an editor is surely sufficient - it is at least the *relevant*
set of tools for any practical development, thus being able to use this toolchain also
helps for a later carrier. I'm not aware of a Matlab package for motion-estimation - the
implementations I know use C or C++.
So long,
Thomas
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thanks for all help..
can u send me this book..."Video Demystified: A Handbook for the
Digital Engineer, 5th Edition " if you have
this is my id :- dhruvdave.ce@gmail.com |
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Phil Carmody
Guest
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| Posted: Tue Nov 18, 2008 4:21 pm Post subject: Re: Motion Estimation |
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Dhruv <dhruvdave.ce@gmail.com> writes:
| Quote: | hi friends
i want some help ...
i want to implement motion estimation.....in video compression so how
to start and what kind of tools will be helpful to me???
and i am studying about three step search and etc....
any body having code for it???
|
Find some open source H.26x or MPEG encoder.
Phil
--
I tried the Vista speech recognition by running the tutorial. I was
amazed, it was awesome, recognised every word I said. Then I said the
wrong word ... and it typed the right one. It was actually just
detecting a sound and printing the expected word! -- pbhj on /. |
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Thomas Richter
Guest
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| Posted: Tue Nov 18, 2008 4:41 pm Post subject: Re: Motion Estimation |
|
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Dhruv schrieb:
| Quote: | hi friends
i want some help ...
i want to implement motion estimation.....in video compression so how
to start and what kind of tools will be helpful to me???
|
Depends on what you really need... Is this some kind of development
project? In that case, I suggest looking at existing implementations,
probably start with the easiest possible, the H.261 codec, and try to
understand how that works.
If this is more an academic project, probably do some reading. We had
here:
Video Demystified: A Handbook for the Digital Engineer, 5th Edition
(Paperback)
as a source, which is probably not quite up to date (I haven't checked
the most recent edition), but still a good starter.
Otherwise, there are many strategies for motion estimation - you
probably start with the most simple ones first and try to understand
them, i.e. full search, hierarchical search, and work towards newer models.
| Quote: | and i am studying about three step search and etc....
any body having code for it???
|
I think you should find plenty. Open source codecs like mplayer or xine
will surely have a H.26x somewhere in the sources, you probably want to
play with that first.
So long,
Thomas |
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| |
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| Back to top |
Thomas Richter
Guest
|
| Posted: Tue Nov 18, 2008 6:39 pm Post subject: Re: Motion Estimation |
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Dhruv schrieb:
| Quote: | I think you should find plenty. Open source codecs like mplayer or xine
will surely have a H.26x somewhere in the sources, you probably want to
play with that first.
So long,
Thomas
thanks Thomas
For replying me soon
actually i am doing research project and i have already studied about
block motion estimation and their algorithm but i don't know how it
can be implemented
ade which is good tools for that ..??
|
Well, for me a compiler and an editor is surely sufficient - it is at least the *relevant*
set of tools for any practical development, thus being able to use this toolchain also
helps for a later carrier. I'm not aware of a Matlab package for motion-estimation - the
implementations I know use C or C++.
So long,
Thomas |
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