[M4IF Discuss] RE: [M4IF Technotes] Re: motion estimation, please advise
Mithun N
mithun.nayak patni.com
Thu Nov 7 16:00:57 EST 2002
hi
i didnt understand your first question properly..
Could you clarify it a bit further??
As for the Motion estimation, there are papers
available of the type of method to be used ..
A combination of three step search and four step
search is useful in case the motion isnt too much
between 2 time instants.
This method is generally called Majority Voting
algorithm where the encoder decides between
the 2 methods by using the surrounding macroblock
motion vectors.
This method is more useful if u plan to build a
real time
encoder.
Else there are other methods such as Full Search..
which take a lot of processing time.
regards
Mithun Nayak
-----Original Message-----
From: technotes-admin lists.m4if.org
[mailto:technotes-admin lists.m4if.org]On Behalf
Of
cloverleafland mail.hongkong.com
Sent: Thursday, November 07, 2023 3:20 PM
To: technotes lists.m4if.org
Cc: discuss lists.m4if.org
Subject: [M4IF Technotes] Re: motion estimation,
please advise
Dear all,
>From previous questions on motion estimation, it
can be done on Y component in each macroblock or
combining a fraction of Cr and Cb together with Y
into a 16x16 blocks for estimation. I would like
to ask is there any further information on which
method is better based on quality, speed and other
performance? any source or papers comparing the
performance of these two methods that I would
find?
Thanks very much.
Regards,
Clover
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